public function run($file, $temp_dir)
{
$info = $this->getImageDetails($file);
$image = new Imagick();
$image->readImage($file);
if ($info['ext'] == 'jpg') {
$image->setCompression(Imagick::COMPRESSION_JPEG);
$image->setCompressionQuality($this->settings['quality']);
$image->setImageFormat('jpeg');
}
if ($info['ext'] == 'gif') {
//remove the canvas (for .gif)
$image->setImagePage(0, 0, 0, 0);
}
//crop and resize the image
$image->resizeImage($this->settings['width'], $this->settings['height'], Imagick::FILTER_LANCZOS, 1, true);
$image->writeImage($file);
return TRUE;
}
/**
* {@inheritdoc}
*/
public function crop(PointInterface $start, BoxInterface $size)
{
if (!$start->in($this->getSize())) {
throw new OutOfBoundsException('Crop coordinates must start at ' . 'minimum 0, 0 position from top left corner, crop height and ' . 'width must be positive integers and must not exceed the ' . 'current image borders');
}
try {
$this->imagick->cropImage($size->getWidth(), $size->getHeight(), $start->getX(), $start->getY());
// Reset canvas for gif format
$this->imagick->setImagePage(0, 0, 0, 0);
} catch (\ImagickException $e) {
throw new RuntimeException('Crop operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* Rotate the image.
* @param int $degrees
*/
protected function _rotate($degrees)
{
if ($this->im->rotateImage(new \ImagickPixel('transparent'), $degrees)) {
$this->width = $this->im->getImageWidth();
$this->height = $this->im->getImageHeight();
$this->im->setImagePage($this->width, $this->height, 0, 0);
}
}
/**
* @param int $width
* @param int $height
* @param int $offsetX
* @param int $offsetY
*
* @return static
*/
public function crop($width, $height, $offsetX = 0, $offsetY = 0)
{
$this->_image->cropImage($width, $height, $offsetX, $offsetY);
$this->_image->setImagePage($width, $height, 0, 0);
$this->_width = $this->_image->getImageWidth();
$this->_height = $this->_image->getImageHeight();
return $this;
}
/**
* @param $x
* @param $y
* @param $width
* @param $height
* @return Pimcore_Image_Adapter_Imagick
*/
public function crop($x, $y, $width, $height)
{
$this->resource->cropImage($width, $height, $x, $y);
$this->resource->setImagePage($width, $height, 0, 0);
$this->setWidth($width);
$this->setHeight($height);
$this->reinitializeImage();
return $this;
}
/**
* Crop the current image.
*
* @param integer $x1 x for the top left corner
* @param integer $y1 y for the top left corner
* @param integer $x2 x for the bottom right corner of the cropped image.
* @param integer $y2 y for the bottom right corner of the cropped image.
*/
public function crop($x1, $y1, $x2, $y2)
{
try {
$result = $this->_imagick->cropImage($x2 - $x1, $y2 - $y1, $x1, $y1);
$this->_imagick->setImagePage(0, 0, 0, 0);
} catch (ImagickException $e) {
throw new Horde_Image_Exception($e);
}
$this->clearGeometry();
}
/**
* @param $x
* @param $y
* @param $width
* @param $height
* @return self
*/
public function crop($x, $y, $width, $height)
{
$this->preModify();
$this->resource->cropImage($width, $height, $x, $y);
$this->resource->setImagePage($width, $height, 0, 0);
$this->setWidth($width);
$this->setHeight($height);
$this->postModify();
return $this;
}
/**
* @see \wcf\system\image\adapter\IImageAdapter::clip()
*/
public function clip($originX, $originY, $width, $height)
{
if ($this->imagick->getImageFormat() == 'GIF') {
$this->imagick = $this->imagick->coalesceImages();
do {
$this->imagick->cropImage($width, $height, $originX, $originY);
$this->imagick->setImagePage($width, $height, 0, 0);
} while ($this->imagick->nextImage());
} else {
$this->imagick->cropImage($width, $height, $originX, $originY);
}
}
/**
* Rotates current image counter-clockwise by $angle.
*
* @since 3.5.0
* @access public
*
* @param float $angle
* @return true|WP_Error
*/
public function rotate($angle)
{
/**
* $angle is 360-$angle because Imagick rotates clockwise
* (GD rotates counter-clockwise)
*/
try {
$this->image->rotateImage(new ImagickPixel('none'), 360 - $angle);
// Since this changes the dimensions of the image, update the size.
$result = $this->update_size();
if (is_wp_error($result)) {
return $result;
}
$this->image->setImagePage($this->size['width'], $this->size['height'], 0, 0);
} catch (Exception $e) {
return new WP_Error('image_rotate_error', $e->getMessage());
}
return true;
}
/**
* Generate a derivative image with Imagick.
*/
public function createImage($sourcePath, $destPath, $type, $sizeConstraint, $mimeType)
{
$page = (int) $this->getOption('page', 0);
try {
$imagick = new Imagick($sourcePath . '[' . $page . ']');
} catch (ImagickException $e) {
_log("Imagick failed to open the file. Details:\n{$e}", Zend_Log::ERR);
return false;
}
$origX = $imagick->getImageWidth();
$origY = $imagick->getImageHeight();
$imagick->setImagePage($origX, $origY, 0, 0);
$imagick->setBackgroundColor('white');
$imagick->setImageBackgroundColor('white');
$imagick = $imagick->mergeImageLayers(Imagick::LAYERMETHOD_FLATTEN);
if ($type != 'square_thumbnail') {
$imagick->thumbnailImage($sizeConstraint, $sizeConstraint, true);
} else {
// We could use cropThumbnailImage here but it lacks support for
// the gravity setting
if ($origX < $origY) {
$newX = $sizeConstraint;
$newY = $origY * ($sizeConstraint / $origX);
$offsetX = 0;
$offsetY = $this->_getCropOffsetY($newY, $sizeConstraint);
} else {
$newY = $sizeConstraint;
$newX = $origX * ($sizeConstraint / $origY);
$offsetY = 0;
$offsetX = $this->_getCropOffsetX($newX, $sizeConstraint);
}
$imagick->thumbnailImage($newX, $newY);
$imagick->cropImage($sizeConstraint, $sizeConstraint, $offsetX, $offsetY);
$imagick->setImagePage($sizeConstraint, $sizeConstraint, 0, 0);
}
$imagick->writeImage($destPath);
$imagick->clear();
return true;
}
/**
* @param int $size
*
* @return $this
*/
public function createThumbnail($size)
{
list($originalX, $originalY) = $this->getGeometry();
$resizeCropX = 0;
$resizeCropY = 0;
if ($originalX > $originalY) {
$resizeX = $originalY;
$resizeY = $originalY;
$resizeCropX = ($originalX - $resizeX) / 2;
} elseif ($originalY > $originalX) {
$resizeX = $originalX;
$resizeY = $originalX;
$resizeCropY = ($originalY - $resizeY) / 2;
} else {
$resizeX = $originalX;
$resizeY = $originalY;
}
$this->im->cropImage($resizeX, $resizeY, $resizeCropX, $resizeCropY);
$this->im->setImagePage($resizeX, $resizeY, 0, 0);
$this->scaleImageMax($size, $size);
return $this;
}
private function make_thumbnail_Imagick($src_path, $width, $height, $dest)
{
$image = new Imagick($src_path);
# Select the first frame to handle animated images properly
if (is_callable(array($image, 'setIteratorIndex'))) {
$image->setIteratorIndex(0);
}
// устанавливаем качество
$format = $image->getImageFormat();
if ($format == 'JPEG' || $format == 'JPG') {
$image->setImageCompression(Imagick::COMPRESSION_JPEG);
}
$image->setImageCompressionQuality(85);
$h = $image->getImageHeight();
$w = $image->getImageWidth();
// если не указана одна из сторон задаем ей пропорциональное значение
if (!$width) {
$width = round($w * ($height / $h));
}
if (!$height) {
$height = round($h * ($width / $w));
}
list($dx, $dy, $wsrc, $hsrc) = $this->crop_coordinates($height, $h, $width, $w);
// обрезаем оригинал
$image->cropImage($wsrc, $hsrc, $dx, $dy);
$image->setImagePage($wsrc, $hsrc, 0, 0);
// Strip out unneeded meta data
$image->stripImage();
// уменьшаем под размер
$image->scaleImage($width, $height);
$image->writeImage($dest);
chmod($dest, 0755);
$image->clear();
$image->destroy();
return true;
}
function waterMarkFont()
{
if ($this->param['water_mark_color']) {
$color = $this->param['water_mark_color'];
} else {
$color = '#000000';
}
$r = hexdec(substr($color, 1, 2));
$g = hexdec(substr($color, 3, 2));
$b = hexdec(substr($color, 5, 2));
$draw = new ImagickDraw();
$draw->setFillColor(new ImagickPixel($color));
//设置填充颜色
$draw->setFont($this->param['water_mark_font']);
//设置文本字体，要求ttf或者ttc字体，可以绝对或者相对路径
$draw->setFontSize($this->param['water_mark_fontsize']);
//设置字号
switch ($this->param['water_mark_pos']) {
case 0:
case 1:
$gravity = Imagick::GRAVITY_NORTHWEST;
//'NorthWest';
break;
case 2:
$gravity = Imagick::GRAVITY_NORTH;
//'North';
break;
case 3:
$gravity = Imagick::GRAVITY_NORTHEAST;
//'NorthEast';
break;
case 4:
$gravity = Imagick::GRAVITY_WEST;
//'West';
break;
case 5:
$gravity = Imagick::GRAVITY_CENTER;
//'Center';
break;
case 6:
$gravity = Imagick::GRAVITY_EAST;
//'East';
break;
case 7:
$gravity = Imagick::GRAVITY_SOUTHWEST;
//'SouthWest';
break;
case 8:
$gravity = Imagick::GRAVITY_SOUTH;
//'South';
break;
case 9:
$gravity = Imagick::GRAVITY_SOUTHEAST;
break;
}
$draw->setGravity($gravity);
if ($this->image_type == 'GIF') {
$color_transparent = new ImagickPixel("transparent");
$dest = new Imagick();
foreach ($this->image as $frame) {
$page = $frame->getImagePage();
$tmp = new Imagick();
$tmp->newImage($page['width'], $page['height'], $color_transparent, 'gif');
$tmp->compositeImage($frame, Imagick::COMPOSITE_OVER, $page['x'], $page['y']);
$tmp->annotateImage($draw, 0, 0, $this->param['water_mark_angle'], $this->param['water_mark_string']);
$dest->addImage($tmp);
$dest->setImagePage($tmp->getImageWidth(), $tmp->getImageHeight(), 0, 0);
$dest->setImageDelay($frame->getImageDelay());
$dest->setImageDispose($frame->getImageDispose());
}
$dest->coalesceImages();
$this->image->destroy();
$this->image = $dest;
} else {
if ($this->param['water_mark_opacity']) {
$draw->setFillOpacity($this->param['water_mark_opacity'] / 100);
}
$this->image->annotateImage($draw, 0, 0, $this->param['water_mark_angle'], $this->param['water_mark_string']);
}
}
}
//calculate the position from the source image if we need to crop and where
//we need to put into the target image.
$dst_x = $src_x = $dst_y = $src_y = 0;
if ($_POST["imageX"] > 0) {
$dst_x = abs($_POST["imageX"]);
} else {
$src_x = abs($_POST["imageX"]);
}
if ($_POST["imageY"] > 0) {
$dst_y = abs($_POST["imageY"]);
} else {
$src_y = abs($_POST["imageY"]);
}
//This fix the page of the image so it crops fine!
$img->setimagepage(0, 0, 0, 0);
//crop the image with the viewed into the viewport
$img->cropImage($viewPortW, $viewPortH, $src_x, $src_y);
//create the viewport to put the cropped image
$viewport = new Imagick();
$viewport->newImage($viewPortW, $viewPortH, '#' . $colorHEX);
$viewport->setImageFormat($ext);
$viewport->setImageColorspace($img->getImageColorspace());
$viewport->compositeImage($img, $img->getImageCompose(), $dst_x, $dst_y);
//crop the selection from the viewport
$viewport->setImagePage(0, 0, 0, 0);
$viewport->cropImage($_POST["selectorW"], $_POST["selectorH"], $selectorX, $selectorY);
$targetFile = 'tmp/test_' . time() . "." . $ext;
//save the image into the disk
$viewport->writeImage($targetFile);
echo $targetFile;
/**
* Creates a new image given an original path, a new path, a target width and height.
* Optionally crops image to exactly match given width and height.
* @param string $originalPath The path to the original image
* @param string $newpath The path to the new image to be created
* @param int $width The maximum width of the new image
* @param int $height The maximum height of the new image
* @param bool $crop = false Set to true to resize and crop the image, set to false to just resize the image
* @return bool
* @example Resizing from 200x200 to 100x50 with $crop = false will result in a 50 x 50 image (same aspect ratio as source, scaled down to a quarter of size)
* @example Resizing from 200x200 to 100x50 with $crop = true will result in a 100 x 50 image (same aspect ratio as source, scaled down to a half of size and cropped in height)
* @example Resizing from 200x200 to 1000x1000 with either $crop = false or $crop = true in a copy of the original image (200x200)
*/
public function create($originalPath, $newPath, $width, $height, $crop = false)
{
// first, we grab the original image. We shouldn't ever get to this function unless the image is valid
$imageSize = @getimagesize($originalPath);
if ($imageSize === false) {
return false;
}
$oWidth = $imageSize[0];
$oHeight = $imageSize[1];
$finalWidth = 0;
//For cropping, this is really "scale to width before chopping extra height"
$finalHeight = 0;
//For cropping, this is really "scale to height before chopping extra width"
$do_crop_x = false;
$do_crop_y = false;
$crop_src_x = 0;
$crop_src_y = 0;
// first, if what we're uploading is actually smaller than width and height, we do nothing
if ($oWidth < $width && $oHeight < $height) {
$finalWidth = $oWidth;
$finalHeight = $oHeight;
$width = $oWidth;
$height = $oHeight;
} else {
if ($crop && ($height >= $oHeight && $width <= $oWidth)) {
//crop to width only -- don't scale anything
$finalWidth = $oWidth;
$finalHeight = $oHeight;
$height = $oHeight;
$do_crop_x = true;
} else {
if ($crop && ($width >= $oWidth && $height <= $oHeight)) {
//crop to height only -- don't scale anything
$finalHeight = $oHeight;
$finalWidth = $oWidth;
$width = $oWidth;
$do_crop_y = true;
} else {
// otherwise, we do some complicated stuff
// first, we divide original width and height by new width and height, and find which difference is greater
$wDiff = $oWidth / $width;
$hDiff = $height != 0 ? $oHeight / $height : 0;
if (!$crop && $wDiff > $hDiff) {
//no cropping, just resize down based on target width
$finalWidth = $width;
$finalHeight = $wDiff != 0 ? $oHeight / $wDiff : 0;
} else {
if (!$crop) {
//no cropping, just resize down based on target height
$finalWidth = $hDiff != 0 ? $oWidth / $hDiff : 0;
$finalHeight = $height;
} else {
if ($crop && $wDiff > $hDiff) {
//resize down to target height, THEN crop off extra width
$finalWidth = $hDiff != 0 ? $oWidth / $hDiff : 0;
$finalHeight = $height;
$do_crop_x = true;
} else {
if ($crop) {
//resize down to target width, THEN crop off extra height
$finalWidth = $width;
$finalHeight = $wDiff != 0 ? $oHeight / $wDiff : 0;
$do_crop_y = true;
}
}
}
}
}
}
}
//Calculate cropping to center image
if ($do_crop_x) {
/*
//Get half the difference between scaled width and target width,
// and crop by starting the copy that many pixels over from the left side of the source (scaled) image.
$nudge = ($width / 10); //I have *no* idea why the width isn't centering exactly -- this seems to fix it though.
$crop_src_x = ($finalWidth / 2.00) - ($width / 2.00) + $nudge;
*/
$crop_src_x = round(($oWidth - $width * $oHeight / $height) * 0.5);
}
if ($do_crop_y) {
/*
//Calculate cropping...
//Get half the difference between scaled height and target height,
// and crop by starting the copy that many pixels down from the top of the source (scaled) image.
$crop_src_y = ($finalHeight / 2.00) - ($height / 2.00);
*/
$crop_src_y = round(($oHeight - $height * $oWidth / $width) * 0.5);
}
$processed = false;
if (class_exists('Imagick')) {
try {
$image = new Imagick();
$imageRead = false;
if ($crop) {
$image->setSize($finalWidth, $finalHeight);
if ($image->readImage($originalPath) === true) {
$image->cropThumbnailImage($width, $height);
/*
* Remove the canvas
* See: http://php.net/manual/en/imagick.cropthumbnailimage.php#106710
*/
$image->setImagePage(0, 0, 0, 0);
$imageRead = true;
}
} else {
$image->setSize($width, $height);
if ($image->readImage($originalPath) === true) {
$image->thumbnailImage($finalWidth, $finalHeight);
$imageRead = true;
}
}
if ($imageRead) {
if ($image->getCompression() == imagick::COMPRESSION_JPEG) {
$image->setCompressionQuality($this->jpegCompression);
}
if ($image->writeImage($newPath) === true) {
$processed = true;
}
}
} catch (Exception $x) {
}
}
if (!$processed) {
//create "canvas" to put new resized and/or cropped image into
if ($crop) {
$image = @imageCreateTrueColor($width, $height);
} else {
$image = @imageCreateTrueColor($finalWidth, $finalHeight);
}
if ($image === false) {
return false;
}
$im = false;
switch ($imageSize[2]) {
case IMAGETYPE_GIF:
$im = @imageCreateFromGIF($originalPath);
break;
case IMAGETYPE_JPEG:
$im = @imageCreateFromJPEG($originalPath);
break;
case IMAGETYPE_PNG:
$im = @imageCreateFromPNG($originalPath);
break;
default:
@imagedestroy($image);
return false;
}
if ($im === false) {
@imagedestroy($image);
return false;
}
// Better transparency - thanks for the ideas and some code from mediumexposure.com
if ($imageSize[2] == IMAGETYPE_GIF || $imageSize[2] == IMAGETYPE_PNG) {
$trnprt_indx = imagecolortransparent($im);
// If we have a specific transparent color
if ($trnprt_indx >= 0 && $trnprt_indx < imagecolorstotal($im)) {
// Get the original image's transparent color's RGB values
$trnprt_color = imagecolorsforindex($im, $trnprt_indx);
// Allocate the same color in the new image resource
$trnprt_indx = imagecolorallocate($image, $trnprt_color['red'], $trnprt_color['green'], $trnprt_color['blue']);
// Completely fill the background of the new image with allocated color.
imagefill($image, 0, 0, $trnprt_indx);
// Set the background color for new image to transparent
imagecolortransparent($image, $trnprt_indx);
} else {
if ($imageSize[2] == IMAGETYPE_PNG) {
// Turn off transparency blending (temporarily)
imagealphablending($image, false);
// Create a new transparent color for image
$color = imagecolorallocatealpha($image, 0, 0, 0, 127);
// Completely fill the background of the new image with allocated color.
imagefill($image, 0, 0, $color);
// Restore transparency blending
imagesavealpha($image, true);
}
}
}
$res = @imageCopyResampled($image, $im, 0, 0, $crop_src_x, $crop_src_y, $finalWidth, $finalHeight, $oWidth, $oHeight);
@imagedestroy($im);
if ($res === false) {
@imagedestroy($image);
return false;
}
$res2 = false;
switch ($imageSize[2]) {
case IMAGETYPE_GIF:
$res2 = @imageGIF($image, $newPath);
break;
case IMAGETYPE_JPEG:
$res2 = @imageJPEG($image, $newPath, $this->jpegCompression);
break;
case IMAGETYPE_PNG:
$res2 = @imagePNG($image, $newPath);
break;
}
@imagedestroy($image);
if ($res2 === false) {
return false;
}
}
@chmod($newPath, FILE_PERMISSIONS_MODE);
return true;
}
};
$frames = array_map($getFilename, range($startFrame, $endFrame, $frameSkip));
echo "There are " . count($frames) . " frames \n";
$frameDelay = $frameSkip * 100 / $frameRate;
$animation = new Imagick();
foreach ($frames as $frame) {
echo "Adding file {$frame}\n";
$imagickFrame = new Imagick($frame);
//$frame->readImage($frame);
//reduceNoiseImage
$imagickFrame->despeckleImage();
//$imagickFrame->reduceNoiseImage(0);
$imagickFrame->resizeImage(0, $height, \Imagick::FILTER_LANCZOS, 2, false);
$geo = $imagickFrame->getImageGeometry();
$imagickFrame->cropImage($width, $height, ($geo['width'] - $width) / 2, 0);
$imagickFrame->setImagePage($imagickFrame->getimageWidth(), $imagickFrame->getimageheight(), 0, 0);
//$imagickFrame->gaussianBlurImage(1, 0.5);
//$imagickFrame->orderedPosterizeImage("o8x8");
//"o8x8,8"
//"o8x8,10"
// $identifyInfo = $imagickFrame->identifyimage();
// var_dump($identifyInfo);
$imagickFrame->writeImage($frame . "debug.gif");
//if (false) {
$paletteImage = clone $imagickFrame;
$paletteImage->quantizeImage(256, Imagick::COLORSPACE_YIQ, 0, false, false);
//$imagickFrame->setImageDepth(8);
//$imagickFrame->quantizeImage(15,Imagick::COLORSPACE_TRANSPARENT,0,false,false);
//Imagick::mapImage ( Imagick $map , bool $dither )
$imagickFrame->remapImage($paletteImage, Imagick::DITHERMETHOD_FLOYDSTEINBERG);
//}
/**
* Resize using PHP imagick extension
*
* Writes resized version of an already uploaded image
*
*
* @param string $input_name The name of the file input field on the submission form
* @param string $output_name The name of the file to be written
* @param int $maxwidth The maximum width of the resized image
* @param int $maxheight The maximum height of the resized image
* @param TRUE|FALSE $square If set to TRUE, will take the smallest of maxwidth and maxheight and use it to set the dimensions on all size; the image will be cropped.
* @return bool TRUE on success
*/
function tp_imagick_resize($input_name, $output_name, $maxwidth, $maxheight, $square = FALSE, $x1 = 0, $y1 = 0, $x2 = 0, $y2 = 0)
{
// Get the size information from the image
$imgsizearray = getimagesize($input_name);
if (!$imgsizearray) {
return FALSE;
}
// Get width and height
$width = $imgsizearray[0];
$height = $imgsizearray[1];
$params = tp_im_calc_resize_params($width, $height, $maxwidth, $maxheight, $square, $x1, $y1, $x2, $y2);
if (!$params) {
return FALSE;
}
$new_width = $params['new_width'];
$new_height = $params['new_height'];
$region_width = $params['region_width'];
$region_height = $params['region_height'];
$widthoffset = $params['width_offset'];
$heightoffset = $params['height_offset'];
try {
$img = new Imagick($input_name);
} catch (ImagickException $e) {
return FALSE;
}
$img->cropImage($region_width, $region_height, $widthoffset, $heightoffset);
// use the default IM filter (windowing filter), I think 1 means default blurring or number of lobes
$img->resizeImage($new_width, $new_height, imagick::FILTER_LANCZOS, 1);
$img->setImagePage($new_width, $new_height, 0, 0);
if ($img->writeImage($output_name) != TRUE) {
$img->destroy();
return FALSE;
}
$img->destroy();
return TRUE;
}
public function getMediaThumbnail(Request $request, Response $response, $arguments)
{
try {
$imagick = new \Imagick();
$imagick->setResolution(144, 144);
$imagick->setBackgroundColor('#ffffff');
$imagick->readImage('uploads/' . $arguments['filename'] . '[0]');
$imagick->scaleImage(640, 0);
$imagick->cropImage(640, 480, 0, 0);
$imagick->setImagePage(0, 0, 0, 0);
$imagick = $imagick->flattenImages();
$imagick->setImageFormat('jpeg');
$imageData = $imagick->getImageBlob();
return $response->withHeader('Content-Type', 'image/jpeg')->write($imageData);
} catch (\Exception $e) {
return $response->withStatus(404);
}
}
/**
* 截取图片
*
* @param int $x 开始坐标x
* @param int $y 坐标y
* @param int $width
* @param int $height
* @param string $savepath 文件存放路径，未提供则修改当前
*/
public function watchmark($x, $y, $savepath = NULL)
{
if (!$this->waterImage instanceof \Imagick) {
throw new MediaException('Watermark source is invalid.');
}
if ($format == 'GIF') {
$format = $this->getImageFormat();
$transparent = new \ImagickPixel("rgba(0, 0, 0, 0)");
// 透明色
$tmpImage = new \Imagick();
foreach ($this->image as $frame) {
$page = $frame->getImagePage();
$tmp = new \Imagick();
$tmp->newImage($page['width'], $page['height'], $transparent, $format);
$tmp->compositeImage($frame, \Imagick::COMPOSITE_DEFAULT, $page['x'], $page['y']);
if (min($this->getOriginalSize()) > $this->waterStart) {
$tmp->compositeImage($this->waterImage, \Imagick::COMPOSITE_DEFAULT, $x, $y);
}
$tmpImage->addImage($tmp);
$tmpImage->setImagePage($tmp->getImageWidth(), $tmp->getImageHeight(), 0, 0);
$tmpImage->setImageDelay($frame->getImageDelay());
$tmpImage->setImageDispose($frame->getImageDispose());
}
} else {
$tmpImage = new \Imagick();
$tmpImage->addimage($this->image);
if (min($this->getOriginalSize()) > $this->waterStart) {
$tmpImage->compositeImage($this->waterImage, \Imagick::COMPOSITE_DEFAULT, $x, $y);
}
}
if ($savepath == NULL) {
//缩放当前
$this->image = $tmpImage;
} else {
//写入储存
$this->writeToPath($savepath, $tmpImage);
}
return $this;
}
function ImagickResizeImage($srcFile, $destFile, $new_w, $new_h, $zhenshu = false)
{
if ($new_w <= 0 || $new_h <= 0 || !file_exists($srcFile)) {
return false;
}
$src = new Imagick($srcFile);
$image_format = strtolower($src->getImageFormat());
if ($image_format != 'jpeg' && $image_format != 'gif' && $image_format != 'png' && $image_format != 'jpg' && $image_format != 'bmp') {
return false;
}
//如果是 jpg jpeg
if ($image_format != 'gif') {
$dest = $src;
$dest->thumbnailImage($new_w, $new_h, true);
$dest->writeImage($destFile);
$dest->clear();
//gif需要以帧一帧的处理
} else {
$dest = new Imagick();
$color_transparent = new ImagickPixel("transparent");
//透明色
$gif_i = 1;
foreach ($src as $img) {
$page = $img->getImagePage();
$tmp = new Imagick();
$tmp->newImage($page['width'], $page['height'], $color_transparent, 'gif');
$tmp->compositeImage($img, Imagick::COMPOSITE_OVER, $page['x'], $page['y']);
$tmp->thumbnailImage($new_w, $new_h, true);
$dest->addImage($tmp);
$dest->setImagePage($tmp->getImageWidth(), $tmp->getImageHeight(), 0, 0);
$dest->setImageDelay($img->getImageDelay());
$dest->setImageDispose($img->getImageDispose());
if ($zhenshu > 0) {
if ($zhenshu <= $gif_i) {
break;
}
$gif_i++;
}
}
$dest->coalesceImages();
$dest->writeImages($destFile, true);
$dest->clear();
}
}
private function _imageickThumb($url, $type, $new_w = 765, $new_h = 1000, $self = false, $trim = false)
{
$srcFile = $url;
if ($self) {
$destFile = $url;
} else {
$destFile = $type;
}
if ($new_w <= 0 || !file_exists($srcFile)) {
return false;
}
$src = new Imagick($srcFile);
$image_format = strtolower($src->getImageFormat());
if ($image_format != 'jpeg' && $image_format != 'gif' && $image_forumat != 'bmp' && $image_format != 'png' && $image_format != 'jpg') {
return false;
}
$src_page = $src->getImagePage();
$src_w = $src_page['width'];
$rate_w = $new_w / $src_w;
if ($rate_w >= 1) {
return false;
}
if ($new_h == -1) {
$new_h = $rate_w * $src_page['height'];
}
//如果是 jpg jpeg gif
if ($image_format != 'gif') {
$dest = $src;
if (!$trim) {
$dest->thumbnailImage($new_w, $new_h, true);
} else {
$dest->cropthumbnailImage($new_w, $new_h);
}
$dest->writeImage($destFile);
$dest->clear();
//gif需要以帧一帧的处理
} else {
$dest = new Imagick();
$color_transparent = new ImagickPixel("transparent");
//透明色
foreach ($src as $img) {
$page = $img->getImagePage();
if ($new_h == -1) {
$new_h = $new_w / $page['width'] * $src_page['hight'];
}
$tmp = new Imagick();
$tmp->newImage($page['width'], $page['height'], $color_transparent, 'gif');
$tmp->compositeImage($img, Imagick::COMPOSITE_OVER, $page['x'], $page['y']);
if (!$trim) {
$tmp->thumbnailImage($new_w, $new_h, true);
} else {
$tmp->cropthumbnailImage($new_w, $new_h);
}
$dest->addImage($tmp);
$dest->setImagePage($tmp->getImageWidth(), $tmp->getImageHeight(), 0, 0);
$dest->setImageDelay($img->getImageDelay());
$dest->setImageDispose($img->getImageDispose());
}
$dest->coalesceImages();
$dest->writeImages($destFile, true);
$dest->clear();
}
}
/**
* Decode a single OMR Page and return data array.
* This function requires ImageMagick library and zbarimg (http://zbar.sourceforge.net/).
* @param $image (string) image file to be decoded (scanned OMR page at 200 DPI with full color range).
* @return array of answers data or false in case of error.
*/
function F_decodeOMRPage($image)
{
require_once '../config/tce_config.php';
// decode barcode containing first question number
$command = K_OMR_PATH_ZBARIMG . ' --raw -Sdisable -Scode128.enable -q ' . escapeshellarg($image);
$qstart = exec($command);
$qstart = intval($qstart);
if ($qstart == 0) {
return false;
}
$img = new Imagick();
$img->readImage($image);
$imginfo = $img->identifyImage();
if ($imginfo['type'] == 'TrueColor') {
// remove red color
$img->separateImageChannel(Imagick::CHANNEL_RED);
} else {
// desaturate image
$img->modulateImage(100, 0, 100);
}
// get image width and height
$w = $imginfo['geometry']['width'];
$h = $imginfo['geometry']['height'];
if ($h > $w) {
// crop header and footer
$y = round(($h - $w) / 2);
$img->cropImage($w, $w, 0, $y);
$img->setImagePage(0, 0, 0, 0);
}
// trim image
$imgtmp = $img->clone();
$color = '#808080';
$img->blackthresholdImage("{$color}");
$img->whitethresholdImage("{$color}");
$img->trimImage(85);
$imgpage = $img->getImagePage();
$w = $img->getImageWidth();
$h = $img->getImageHeight();
$img = $imgtmp->clone();
$imgtmp->clear();
$img->cropImage($w, $h, $imgpage['x'], $imgpage['y']);
$img->setImagePage(0, 0, 0, 0);
// increase contrast
$img->normalizeImage(Imagick::CHANNEL_ALL);
$img->enhanceImage();
$img->despeckleImage();
// straighten image
$img->deskewImage(40);
$img->setImagePage(0, 0, 0, 0);
// trim image (remove white border)
$imgtmp = $img->clone();
$color = '#808080';
$img->blackthresholdImage("{$color}");
$img->whitethresholdImage("{$color}");
$img->trimImage(85);
$imgpage = $img->getImagePage();
$w = $img->getImageWidth();
$h = $img->getImageHeight();
$img = $imgtmp->clone();
$imgtmp->clear();
$img->cropImage($w, $h, $imgpage['x'], $imgpage['y']);
$img->setImagePage(0, 0, 0, 0);
// resize image
$img->resizeImage(1028, 1052, Imagick::FILTER_CUBIC, 1);
$img->setImagePage(0, 0, 0, 0);
// binarize image
$color = '#c0c0c0';
$img->blackthresholdImage("{$color}");
$img->whitethresholdImage("{$color}");
// scan block width
$blkw = 16;
// starting column in pixels
$scol = 106;
// starting row in pixels
$srow = 49;
// column distance in pixels between two answers
$dcol = 75.364;
// column distance in pixels between True/false circles
$dtf = 25;
// row distance in pixels between two questions
$drow = 32.38;
// verify image pattern
$imgtmp = $img->clone();
$imgtmp->cropImage(1028, 10, 0, 10);
$imgtmp->setImagePage(0, 0, 0, 0);
// create reference block pattern
$impref = new Imagick();
$impref->newImage(3, 10, new ImagickPixel('black'));
$psum = 0;
for ($c = 0; $c < 12; ++$c) {
$x = round(112 + $c * $dcol);
// get square region inside the current grid position
$imreg = $img->getImageRegion(3, 10, $x, 0);
$imreg->setImagePage(0, 0, 0, 0);
// get root-mean-square-error with reference image
$rmse = $imreg->compareImages($impref, Imagick::METRIC_ROOTMEANSQUAREDERROR);
// cont reference blocks
$psum += round(1.25 - $rmse[1]) . "\n";
}
$imreg->clear();
$impref->clear();
if ($psum != 12) {
return false;
}
// create reference block
$imref = new Imagick();
$imref->newImage($blkw, $blkw, new ImagickPixel('black'));
// array to be returned
$omrdata = array();
// for each row (question)
for ($r = 0; $r < 30; ++$r) {
$omrdata[$r + $qstart] = array();
$y = round($srow + $r * $drow);
// for each column (answer)
for ($c = 0; $c < 12; ++$c) {
// read true option
$x = round($scol + $c * $dcol);
// get square region inside the current grid position
$imreg = $img->getImageRegion($blkw, $blkw, $x, $y);
$imreg->setImagePage(0, 0, 0, 0);
// get root-mean-square-error with reference image
$rmse = $imreg->compareImages($imref, Imagick::METRIC_ROOTMEANSQUAREDERROR);
// true option
$opt_true = 2 * round(1.25 - $rmse[1]);
// read false option
$x += $dtf;
// get square region inside the current grid position
$imreg = $img->getImageRegion($blkw, $blkw, $x, $y);
$imreg->setImagePage(0, 0, 0, 0);
// get root-mean-square-error with reference image
$rmse = $imreg->compareImages($imref, Imagick::METRIC_ROOTMEANSQUAREDERROR);
// false option
$opt_false = round(1.25 - $rmse[1]);
// set array to be returned (-1 = unset, 0 = false, 1 = true)
$val = $opt_true + $opt_false - 1;
if ($val > 1) {
$val = 1;
}
$omrdata[$r + $qstart][$c + 1] = $val;
}
}
$imreg->clear();
$imref->clear();
return $omrdata;
}
public function resize_to($width = 100, $height = 100, $fit = 'center', $fill_color = array(255, 255, 255, 0))
{
switch ($fit) {
case 'force':
if ($this->type == 'gif') {
$image = $this->image;
$canvas = new Imagick();
$images = $image->coalesceImages();
foreach ($images as $frame) {
$img = new Imagick();
$img->readImageBlob($frame);
$img->thumbnailImage($width, $height, false);
$canvas->addImage($img);
$canvas->setImageDelay($img->getImageDelay());
}
$image->destroy();
$this->image = $canvas;
} else {
$this->image->thumbnailImage($width, $height, false);
}
break;
case 'scale':
if ($this->type == 'gif') {
$image = $this->image;
$images = $image->coalesceImages();
$canvas = new Imagick();
foreach ($images as $frame) {
$img = new Imagick();
$img->readImageBlob($frame);
$img->thumbnailImage($width, $height, true);
$canvas->addImage($img);
$canvas->setImageDelay($img->getImageDelay());
}
$image->destroy();
$this->image = $canvas;
} else {
$this->image->thumbnailImage($width, $height, true);
}
break;
case 'scale_fill':
$size = $this->image->getImagePage();
$src_width = $size['width'];
$src_height = $size['height'];
$x = 0;
$y = 0;
$dst_width = $width;
$dst_height = $height;
if ($src_width * $height > $src_height * $width) {
$dst_height = intval($width * $src_height / $src_width);
$y = intval(($height - $dst_height) / 2);
} else {
$dst_width = intval($height * $src_width / $src_height);
$x = intval(($width - $dst_width) / 2);
}
$image = $this->image;
$canvas = new Imagick();
$color = 'rgba(' . $fill_color[0] . ',' . $fill_color[1] . ',' . $fill_color[2] . ',' . $fill_color[3] . ')';
if ($this->type == 'gif') {
$images = $image->coalesceImages();
foreach ($images as $frame) {
$frame->thumbnailImage($width, $height, true);
$draw = new ImagickDraw();
$draw->composite($frame->getImageCompose(), $x, $y, $dst_width, $dst_height, $frame);
$img = new Imagick();
$img->newImage($width, $height, $color, 'gif');
$img->drawImage($draw);
$canvas->addImage($img);
$canvas->setImageDelay($img->getImageDelay());
$canvas->setImagePage($width, $height, 0, 0);
}
} else {
$image->thumbnailImage($width, $height, true);
$draw = new ImagickDraw();
$draw->composite($image->getImageCompose(), $x, $y, $dst_width, $dst_height, $image);
$canvas->newImage($width, $height, $color, $this->get_type());
$canvas->drawImage($draw);
$canvas->setImagePage($width, $height, 0, 0);
}
$image->destroy();
$this->image = $canvas;
break;
default:
$size = $this->image->getImagePage();
$src_width = $size['width'];
$src_height = $size['height'];
$crop_x = 0;
$crop_y = 0;
$crop_w = $src_width;
$crop_h = $src_height;
if ($src_width * $height > $src_height * $width) {
$crop_w = intval($src_height * $width / $height);
} else {
$crop_h = intval($src_width * $height / $width);
}
switch ($fit) {
case 'north_west':
$crop_x = 0;
$crop_y = 0;
break;
case 'north':
$crop_x = intval(($src_width - $crop_w) / 2);
$crop_y = 0;
break;
case 'north_east':
$crop_x = $src_width - $crop_w;
$crop_y = 0;
break;
case 'west':
$crop_x = 0;
$crop_y = intval(($src_height - $crop_h) / 2);
break;
case 'center':
$crop_x = intval(($src_width - $crop_w) / 2);
$crop_y = intval(($src_height - $crop_h) / 2);
break;
case 'east':
$crop_x = $src_width - $crop_w;
$crop_y = intval(($src_height - $crop_h) / 2);
break;
case 'south_west':
$crop_x = 0;
$crop_y = $src_height - $crop_h;
break;
case 'south':
$crop_x = intval(($src_width - $crop_w) / 2);
$crop_y = $src_height - $crop_h;
break;
case 'south_east':
$crop_x = $src_width - $crop_w;
$crop_y = $src_height - $crop_h;
break;
default:
$crop_x = intval(($src_width - $crop_w) / 2);
$crop_y = intval(($src_height - $crop_h) / 2);
}
$image = $this->image;
$canvas = new Imagick();
if ($this->type == 'gif') {
$images = $image->coalesceImages();
foreach ($images as $frame) {
$img = new Imagick();
$img->readImageBlob($frame);
$img->cropImage($crop_w, $crop_h, $crop_x, $crop_y);
$img->thumbnailImage($width, $height, true);
$canvas->addImage($img);
$canvas->setImageDelay($img->getImageDelay());
$canvas->setImagePage($width, $height, 0, 0);
}
} else {
$image->cropImage($crop_w, $crop_h, $crop_x, $crop_y);
$image->thumbnailImage($width, $height, true);
$canvas->addImage($image);
$canvas->setImagePage($width, $height, 0, 0);
}
$image->destroy();
$this->image = $canvas;
}
}
private static function _imagick()
{
//if (!extension_loaded('imagick')) {
if (!class_exists('Imagick')) {
if (!extension_loaded('gd')) {
return array('status' => self::RESULT_FAILED, 'message' => "Extension 'imagick' is not loaded. Fallback extension 'gd' is also not loaded.");
}
return array('status' => self::RESULT_WARNING, 'message' => "Extension 'imagick' is not loaded. 'gd' is used as fallback.");
}
$im = new Imagick();
$im->readImage(dirname(__FILE__) . '/Config/testImage.jpg');
$im->scaleImage(10, 10);
$im->setImagePage(0, 0, 0, 0);
$im->setImageColorspace(Imagick::COLORSPACE_RGB);
$im->getImageBlob();
$im->destroy();
$im = new Imagick();
$im->readImage(dirname(__FILE__) . '/Config/testImage.png');
$im->scaleImage(10, 10);
$im->setImagePage(0, 0, 0, 0);
$im->setImageColorspace(Imagick::COLORSPACE_RGB);
$im->getImageBlob();
$im->destroy();
return array('status' => self::RESULT_OK);
}
/**
* Execute the command.
*
* @return void
*/
public function handle()
{
$media = $this->media;
\Log::info('ATTEMPT Process Image ' . $media->id . ': ' . microtime());
if ($media) {
\Log::info('START Process Image ' . $media->id . ': ' . microtime());
if (class_exists("Imagick")) {
$sizes = \Config::get('media.sizes');
$createdSizes = ['o'];
$img = new \Imagick($media->filePath('o'));
$imgProps = $img->getImageGeometry();
$dimensions = ['o' => ['width' => $imgProps['width'], 'height' => $imgProps['height']]];
foreach ($sizes as $size => $settings) {
\Log::info('START Size ' . $size . ': ' . microtime());
$img = new \Imagick($media->filePath('o'));
$imgProps = $img->getImageGeometry();
if ($imgProps['width'] >= $settings['length'] || $imgProps['height'] >= $settings['length']) {
$imgRatio = $imgProps['width'] / $imgProps['height'];
if ($settings['aspectRatio'] != 'source') {
list($aspectWidth, $aspectHeight) = explode(':', $settings['aspectRatio']);
$cropRatio = $aspectWidth / $aspectHeight;
if ($cropRatio == 1) {
$newWidth = $newHeight = $settings['length'];
} else {
if ($cropRatio > 1) {
$newWidth = $settings['length'];
$newHeight = $settings['length'] / $cropRatio;
} else {
$newWidth = $settings['length'] / $cropRatio;
$newHeight = $settings['length'];
}
}
if ($imgRatio >= $cropRatio) {
$img->resizeImage(999999, $newHeight, \Imagick::FILTER_BOX, 1, TRUE);
} else {
$img->resizeImage($newWidth, 999999, \Imagick::FILTER_BOX, 1, TRUE);
}
$imgProps = $img->getImageGeometry();
$newX = ($imgProps['width'] - $newWidth) / 2;
$newY = ($imgProps['height'] - $newHeight) / 2;
$img->cropImage($newWidth, $newHeight, $newX, $newY);
$img->setImagePage(0, 0, 0, 0);
// Fixes a bug(?) where cropping leaves behind blank canvas
} else {
$img->resizeImage($settings['length'], $settings['length'], \Imagick::FILTER_BOX, 1, TRUE);
}
if ($img->writeImage($media->filePath($size))) {
$createdSizes[] = $size;
$dimensions[$size] = ['width' => $imgProps['width'], 'height' => $imgProps['height']];
\Log::info('Saved Size ' . $size . ': ' . microtime());
} else {
\Log::info('Error Saving Size ' . $size . ': ' . microtime());
}
\Log::info('END Size ' . $size . ': ' . microtime());
}
}
$media->dimensions = $dimensions;
$media->processed = 1;
$media->save();
}
\Log::info('END Process Image ' . $media->id . ': ' . microtime());
}
}
public function thumb($width, $height, $type = THINKIMAGE_THUMB_SCALE)
{
if (empty($this->img)) {
throw new Exception("没有可以被缩略的图像资源");
}
$w = $this->info["width"];
$h = $this->info["height"];
switch ($type) {
case THINKIMAGE_THUMB_SCALE:
if ($w < $width && $h < $height) {
return NULL;
}
$scale = min($width / $w, $height / $h);
$x = $y = 0;
$width = $w * $scale;
$height = $h * $scale;
break;
case THINKIMAGE_THUMB_CENTER:
$scale = max($width / $w, $height / $h);
$w = $width / $scale;
$h = $height / $scale;
$x = ($this->info["width"] - $w) / 2;
$y = ($this->info["height"] - $h) / 2;
break;
case THINKIMAGE_THUMB_NORTHWEST:
$scale = max($width / $w, $height / $h);
$x = $y = 0;
$w = $width / $scale;
$h = $height / $scale;
break;
case THINKIMAGE_THUMB_SOUTHEAST:
$scale = max($width / $w, $height / $h);
$w = $width / $scale;
$h = $height / $scale;
$x = $this->info["width"] - $w;
$y = $this->info["height"] - $h;
break;
case THINKIMAGE_THUMB_FILLED:
if ($w < $width && $h < $height) {
$scale = 1;
} else {
$scale = min($width / $w, $height / $h);
}
$neww = $w * $scale;
$newh = $h * $scale;
$posx = ($width - $w * $scale) / 2;
$posy = ($height - $h * $scale) / 2;
$newimg = new Imagick();
$newimg->newImage($width, $height, "white", $this->info["type"]);
if ("gif" == $this->info["type"]) {
$imgs = $this->img->coalesceImages();
$img = new Imagick();
$this->img->destroy();
do {
$image = $this->_fill($newimg, $posx, $posy, $neww, $newh, $imgs);
$img->addImage($image);
$img->setImageDelay($imgs->getImageDelay());
$img->setImagePage($width, $height, 0, 0);
$image->destroy();
} while ($imgs->nextImage());
$this->img->destroy();
$this->img = $img->deconstructImages();
$imgs->destroy();
$img->destroy();
} else {
$img = $this->_fill($newimg, $posx, $posy, $neww, $newh);
$this->img->destroy();
$this->img = $img;
}
$this->info["width"] = $width;
$this->info["height"] = $height;
return NULL;
case THINKIMAGE_THUMB_FIXED:
$x = $y = 0;
break;
default:
throw new Exception("不支持的缩略图裁剪类型");
}
$this->crop($w, $h, $x, $y, $width, $height);
}
public function preciseCrop($destPath, $coords)
{
$image = new \Imagick($this->path);
$image->setImagePage(0, 0, 0, 0);
// Reset virtual canvas, like +repage
$image->cropImage($coords['width'], $coords['height'], $coords['x'], $coords['y']);
$image->setImagePage(0, 0, 0, 0);
// Reset virtual canvas, like +repage
// Imagick will copy metadata to the destination file
$image->writeImage($destPath);
$image->destroy();
}
$save_image_link = 'imagick-resize-900x600-from-jpg.png'; // png compression for imagick does not work!!! $save_result = $Imagick->writeImage($processed_images_fullpath . $save_image_link); var_dump($save_result); echo '<a href="' . $processed_images_folder . $save_image_link . '">resized image</a>' . "\n"; $image_data = getimagesize($processed_images_fullpath . $save_image_link); echo '<pre>' . print_r($image_data, true) . '</pre>'; echo '<hr>' . "\n\n"; // resize 8 (save to .gif) $save_image_link = 'imagick-resize-900x600-from-jpg.gif'; $save_result = $Imagick->writeImage($processed_images_fullpath . $save_image_link); $Imagick->clear(); var_dump($save_result); echo '<a href="' . $processed_images_folder . $save_image_link . '">resized image</a>' . "\n"; $image_data = getimagesize($processed_images_fullpath . $save_image_link); echo '<pre>' . print_r($image_data, true) . '</pre>'; echo '<hr>' . "\n\n"; // resize 9 (crop and save to .gif) $Imagick = new \Imagick(realpath($source_image_jpg)); $Imagick->cropImage($crop_width, $crop_height, 0, 0); $save_image_link = 'imagick-crop-460x460-from-jpg.gif'; $Imagick->setImagePage(0, 0, 0, 0); // required to save as gif even from other format. $save_result = $Imagick->writeImage($processed_images_fullpath . $save_image_link); $Imagick->clear(); var_dump($save_result); echo '<a href="' . $processed_images_folder . $save_image_link . '">cropped image</a>' . "\n"; $image_data = getimagesize($processed_images_fullpath . $save_image_link); echo '<pre>' . print_r($image_data, true) . '</pre>'; echo '<hr>' . "\n\n"; include __DIR__ . DIRECTORY_SEPARATOR . 'include-memory-usage.php';
/**
* 生成缩略图
* @param integer $width 缩略图最大宽度
* @param integer $height 缩略图最大高度
* @param integer $type 缩略图裁剪类型
*/
public function thumb($width, $height, $type = Image::IMAGE_THUMB_SCALE)
{
if (empty($this->img)) {
throw new Exception('没有可以被缩略的图像资源');
}
//原图宽度和高度
$w = $this->info['width'];
$h = $this->info['height'];
/* 计算缩略图生成的必要参数 */
switch ($type) {
/* 等比例缩放 */
case Image::IMAGE_THUMB_SCALING:
//原图尺寸小于缩略图尺寸则不进行缩略
if ($w < $width && $h < $height) {
return;
}
//计算缩放比例
$scale = min($width / $w, $height / $h);
//设置缩略图的坐标及宽度和高度
$x = $y = 0;
$width = $w * $scale;
$height = $h * $scale;
break;
/* 居中裁剪 */
/* 居中裁剪 */
case Image::IMAGE_THUMB_CENTER:
//计算缩放比例
$scale = max($width / $w, $height / $h);
//设置缩略图的坐标及宽度和高度
$w = $width / $scale;
$h = $height / $scale;
$x = ($this->info['width'] - $w) / 2;
$y = ($this->info['height'] - $h) / 2;
break;
/* 左上角裁剪 */
/* 左上角裁剪 */
case Image::IMAGE_THUMB_NORTHWEST:
//计算缩放比例
$scale = max($width / $w, $height / $h);
//设置缩略图的坐标及宽度和高度
$x = $y = 0;
$w = $width / $scale;
$h = $height / $scale;
break;
/* 右下角裁剪 */
/* 右下角裁剪 */
case Image::IMAGE_THUMB_SOUTHEAST:
//计算缩放比例
$scale = max($width / $w, $height / $h);
//设置缩略图的坐标及宽度和高度
$w = $width / $scale;
$h = $height / $scale;
$x = $this->info['width'] - $w;
$y = $this->info['height'] - $h;
break;
/* 填充 */
/* 填充 */
case Image::IMAGE_THUMB_FILLED:
//计算缩放比例
if ($w < $width && $h < $height) {
$scale = 1;
} else {
$scale = min($width / $w, $height / $h);
}
//设置缩略图的坐标及宽度和高度
$neww = $w * $scale;
$newh = $h * $scale;
$posx = ($width - $w * $scale) / 2;
$posy = ($height - $h * $scale) / 2;
//创建一张新图像
$newimg = new Imagick();
$newimg->newImage($width, $height, 'white', $this->info['type']);
if ('gif' == $this->info['type']) {
$imgs = $this->img->coalesceImages();
$img = new Imagick();
$this->img->destroy();
//销毁原图
//循环填充每一帧
do {
//填充图像
$image = $this->_fill($newimg, $posx, $posy, $neww, $newh, $imgs);
$img->addImage($image);
$img->setImageDelay($imgs->getImageDelay());
$img->setImagePage($width, $height, 0, 0);
$image->destroy();
//销毁零时图片
} while ($imgs->nextImage());
//压缩图片
$this->img->destroy();
$this->img = $img->deconstructImages();
$imgs->destroy();
//销毁零时图片
$img->destroy();
//销毁零时图片
} else {
//填充图像
$img = $this->_fill($newimg, $posx, $posy, $neww, $newh);
//销毁原图
$this->img->destroy();
$this->img = $img;
}
//设置新图像属性
$this->info['width'] = $width;
$this->info['height'] = $height;
return;
/* 固定 */
/* 固定 */
case Image::IMAGE_THUMB_FIXED:
$x = $y = 0;
break;
default:
throw new Exception('不支持的缩略图裁剪类型');
}
/* 裁剪图像 */
$this->crop($w, $h, $x, $y, $width, $height);
}
/**
* 对图片进行裁剪
*
* @param float $lx x起点(百分比模式,1为原图大小,如0.25)
* @param float $rx x终点(百分比模式,1为原图大小,如0.75)
* @param float $by y起点(百分比模式,1为原图大小,如0.25)
* @param float $ty y终点(百分比模式,1为原图大小,如0.75)
* @return bool
* @author Sauwe
*/
public function crop($lx = 0.25, $rx = 0.75, $by = 0.25, $ty = 0.75)
{
$lx = floatval($lx);
$rx = floatval($rx);
$by = floatval($by);
$ty = floatval($ty);
if ($rx < $lx or $ty < $by) {
$this->_errno = SAE_ErrParameter;
$this->_errmsg = "rx must greater than lx, ty must greater than by";
return false;
}
if ($this->notValid()) {
return false;
}
try {
$im = new Imagick();
$im->readImageBlob($this->_img_data);
$width = ($rx - $lx) * $im->getImageWidth();
$height = ($ty - $by) * $im->getImageHeight();
$x = $lx * $im->getImageWidth();
$y = $by * $im->getImageHeight();
if ($im->cropImage($width, $height, $x, $y)) {
if ($im->setImagePage(0, 0, 0, 0)) {
$this->_img_data = $im->getImageBlob();
return true;
} else {
return false;
}
} else {
return false;
}
} catch (Exception $e) {
$this->_errno = SAE_ErrUnknown;
$this->_errmsg = $e->getMessage();
return false;
}
}
