/**
* Reduces colors of a given image
*
* @param \Intervention\Image\Image $image
* @return boolean
*/
public function execute($image)
{
$count = $this->argument(0)->value();
$matte = $this->argument(1)->value();
// get current image size
$size = $image->getSize();
// create empty canvas
$resource = imagecreatetruecolor($size->width, $size->height);
// define matte
if (is_null($matte)) {
$matte = imagecolorallocatealpha($resource, 255, 255, 255, 127);
} else {
$matte = $image->getDriver()->parseColor($matte)->getInt();
}
// fill with matte and copy original image
imagefill($resource, 0, 0, $matte);
// set transparency
imagecolortransparent($resource, $matte);
// copy original image
imagecopy($resource, $image->getCore(), 0, 0, 0, 0, $size->width, $size->height);
if (is_numeric($count) && $count <= 256) {
// decrease colors
imagetruecolortopalette($resource, true, $count);
}
// set new resource
$image->setCore($resource);
return true;
}
/**
* Applies filter effects to the given image
*
* @param Image\Image $image The image to filter.
*
* @return Image\Image The filtered image.
*
* @throws FilterException if the image filter algorithm fails.
*/
public function applyFilter(Image\Image $image)
{
if ($this->level <= 0) {
$gd = $image->getCore();
$width = imagesx($gd);
$height = imagesy($gd);
for ($x = 0; $x < $width; ++$x) {
for ($y = 0; $y < $height; ++$y) {
$rgba = imagecolorsforindex($gd, imagecolorat($gd, $x, $y));
$r = $rgba['red'];
$g = $rgba['green'];
$b = $rgba['blue'];
$a = $rgba['alpha'];
$level = $this->level * -1;
$max = max($r, $g, $b);
$avg = ($r + $g + $b) / 3;
$amt = abs($max - $avg) * 2 / 255 * $level / 100;
if ($r !== $max) {
$r += ($max - $r) * $amt;
}
if ($g !== $max) {
$g += ($max - $g) * $amt;
}
if ($b !== $max) {
$b += ($max - $b) * $amt;
}
imagesetpixel($gd, $x, $y, imagecolorallocatealpha($gd, $r, $g, $b, $a));
}
}
$image->setCore($gd);
} else {
$image->filter(new SaturateFilter($this->level));
}
return $image;
}
/**
* Reduces colors of a given image
*
* @param \Intervention\Image\Image $image
* @return boolean
*/
public function execute($image)
{
$count = $this->argument(0)->value();
$matte = $this->argument(1)->value();
// get current image size
$size = $image->getSize();
// build 2 color alpha mask from original alpha
$alpha = clone $image->getCore();
$alpha->separateImageChannel(\Imagick::CHANNEL_ALPHA);
$alpha->transparentPaintImage('#ffffff', 0, 0, false);
$alpha->separateImageChannel(\Imagick::CHANNEL_ALPHA);
$alpha->negateImage(false);
if ($matte) {
// get matte color
$mattecolor = $image->getDriver()->parseColor($matte)->getPixel();
// create matte image
$canvas = new \Imagick();
$canvas->newImage($size->width, $size->height, $mattecolor, 'png');
// lower colors of original and copy to matte
$image->getCore()->quantizeImage($count, \Imagick::COLORSPACE_RGB, 0, false, false);
$canvas->compositeImage($image->getCore(), \Imagick::COMPOSITE_DEFAULT, 0, 0);
// copy new alpha to canvas
$canvas->compositeImage($alpha, \Imagick::COMPOSITE_COPYOPACITY, 0, 0);
// replace core
$image->setCore($canvas);
} else {
$image->getCore()->quantizeImage($count, \Imagick::COLORSPACE_RGB, 0, false, false);
$image->getCore()->compositeImage($alpha, \Imagick::COMPOSITE_COPYOPACITY, 0, 0);
}
return true;
}
/**
* Applies filter effects to the given image
*
* @param Image\Image $image The image to filter.
*
* @return Image\Image The filtered image.
*
* @throws FilterException if the image filter algorithm fails.
*/
public function applyFilter(Image\Image $image)
{
$gd = $image->getCore();
imagefilter($gd, IMG_FILTER_GRAYSCALE);
imagefilter($gd, IMG_FILTER_COLORIZE, 60, 30, 0);
$image->setCore($gd);
return $image;
}
/**
* Applies filter effects to the given image
*
* @param Image\Image $image The image to filter.
*
* @return Image\Image The filtered image.
*
* @throws FilterException if the image filter algorithm fails.
*/
public function applyFilter(Image\Image $image)
{
$gd = $image->getCore();
if (!imagefilter($gd, IMG_FILTER_EMBOSS)) {
throw new FilterException('Er is een fout opgetreden bij het bewerken van de afbeelding. ' + 'Probeer het later alstublieft opnieuw.', 1);
}
$image->setCore($gd);
return $image;
}
/**
* Resizes image boundaries
*
* @param \Intervention\Image\Image $image
* @return boolean
*/
public function execute($image)
{
$width = $this->argument(0)->type('digit')->required()->value();
$height = $this->argument(1)->type('digit')->required()->value();
$anchor = $this->argument(2)->value('center');
$relative = $this->argument(3)->type('boolean')->value();
$bgcolor = $this->argument(4)->value();
$original_width = $image->getWidth();
$original_height = $image->getHeight();
// check of only width or height is set
$width = is_null($width) ? $original_width : intval($width);
$height = is_null($height) ? $original_height : intval($height);
// check on relative width/height
if ($relative) {
$width = $original_width + $width;
$height = $original_height + $height;
}
// check for negative width/height
$width = $width <= 0 ? $width + $original_width : $width;
$height = $height <= 0 ? $height + $original_height : $height;
// create new canvas
$canvas = $image->getDriver()->newImage($width, $height, $bgcolor);
// set copy position
$canvas_size = $canvas->getSize()->align($anchor);
$image_size = $image->getSize()->align($anchor);
$canvas_pos = $image_size->relativePosition($canvas_size);
$image_pos = $canvas_size->relativePosition($image_size);
if ($width <= $original_width) {
$dst_x = 0;
$src_x = $canvas_pos->x;
$src_w = $canvas_size->width;
} else {
$dst_x = $image_pos->x;
$src_x = 0;
$src_w = $original_width;
}
if ($height <= $original_height) {
$dst_y = 0;
$src_y = $canvas_pos->y;
$src_h = $canvas_size->height;
} else {
$dst_y = $image_pos->y;
$src_y = 0;
$src_h = $original_height;
}
// make image area transparent to keep transparency
// even if background-color is set
$transparent = imagecolorallocatealpha($canvas->getCore(), 255, 255, 255, 127);
imagealphablending($canvas->getCore(), false);
// do not blend / just overwrite
imagefilledrectangle($canvas->getCore(), $dst_x, $dst_y, $dst_x + $src_w - 1, $dst_y + $src_h - 1, $transparent);
// copy image into new canvas
imagecopy($canvas->getCore(), $image->getCore(), $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h);
// set new core to canvas
$image->setCore($canvas->getCore());
return true;
}
/**
* Rotates image counter clockwise
*
* @param \Intervention\Image\Image $image
* @return boolean
*/
public function execute($image)
{
$angle = $this->argument(0)->type('numeric')->required()->value();
$color = $this->argument(1)->value();
$color = new Color($color);
// rotate image
$image->setCore(imagerotate($image->getCore(), $angle, $color->getInt()));
return true;
}
/**
* Resets given image to its backup state
*
* @param \Intervention\Image\Image $image
* @return boolean
*/
public function execute($image)
{
if (is_resource($backup = $image->getBackup())) {
// destroy old resource
imagedestroy($image->getCore());
// reset to new resource
$image->setCore($backup);
return true;
}
throw new \Intervention\Image\Exception\RuntimeException("Backup not available. Call backup() before reset().");
}
/**
* Resets given image to its backup state
*
* @param \Intervention\Image\Image $image
* @return boolean
*/
public function execute($image)
{
$backup = $image->getBackup();
if ($backup instanceof \Imagick) {
// destroy old core
$image->getCore()->clear();
// reset to new resource
$image->setCore($backup);
return true;
}
throw new \Intervention\Image\Exception\RuntimeException("Backup not available. Call backup() before reset().");
}
/**
* Applies an alpha mask to an image
*
* @param \Intervention\Image\Image $image
* @return boolean
*/
public function execute($image)
{
$mask_source = $this->argument(0)->value();
$mask_w_alpha = $this->argument(1)->type('bool')->value(false);
$image_size = $image->getSize();
// create empty canvas
$canvas = $image->getDriver()->newImage($image_size->width, $image_size->height, array(0, 0, 0, 0));
// build mask image from source
$mask = $image->getDriver()->init($mask_source);
$mask_size = $mask->getSize();
// resize mask to size of current image (if necessary)
if ($mask_size != $image_size) {
$mask->resize($image_size->width, $image_size->height);
}
imagealphablending($canvas->getCore(), false);
if (!$mask_w_alpha) {
// mask from greyscale image
imagefilter($mask->getCore(), IMG_FILTER_GRAYSCALE);
}
// redraw old image pixel by pixel considering alpha map
for ($x = 0; $x < $image_size->width; $x++) {
for ($y = 0; $y < $image_size->height; $y++) {
$color = $image->pickColor($x, $y, 'array');
$alpha = $mask->pickColor($x, $y, 'array');
if ($mask_w_alpha) {
$alpha = $alpha[3];
// use alpha channel as mask
} else {
if ($alpha[3] == 0) {
// transparent as black
$alpha = 0;
} else {
// $alpha = floatval(round((($alpha[0] + $alpha[1] + $alpha[3]) / 3) / 255, 2));
// image is greyscale, so channel doesn't matter (use red channel)
$alpha = floatval(round($alpha[0] / 255, 2));
}
}
// preserve alpha of original image...
if ($color[3] < $alpha) {
$alpha = $color[3];
}
// replace alpha value
$color[3] = $alpha;
// redraw pixel
$canvas->pixel($color, $x, $y);
}
}
// replace current image with masked instance
$image->setCore($canvas->getCore());
return true;
}
/**
* Resets given image to its backup state
*
* @param \Intervention\Image\Image $image
* @return boolean
*/
public function execute($image)
{
$backupName = $this->argument(0)->value();
if (is_resource($backup = $image->getBackup($backupName))) {
// destroy current resource
imagedestroy($image->getCore());
// clone backup
$backup = $image->getDriver()->cloneCore($backup);
// reset to new resource
$image->setCore($backup);
return true;
}
throw new \Intervention\Image\Exception\RuntimeException("Backup not available. Call backup() before reset().");
}
/**
* Resets given image to its backup state
*
* @param \Intervention\Image\Image $image
* @return boolean
*/
public function execute($image)
{
$backupName = $this->argument(0)->value();
$backup = $image->getBackup($backupName);
if ($backup instanceof \Imagick) {
// destroy current core
$image->getCore()->clear();
// clone backup
$backup = clone $backup;
// reset to new resource
$image->setCore($backup);
return true;
}
throw new \Intervention\Image\Exception\RuntimeException("Backup not available. Call backup({$backupName}) before reset().");
}
/**
* Fills image with color or pattern
*
* @param \Intervention\Image\Image $image
* @return boolean
*/
public function execute($image)
{
$filling = $this->argument(0)->value();
$x = $this->argument(1)->type('digit')->value();
$y = $this->argument(2)->type('digit')->value();
$width = $image->getWidth();
$height = $image->getHeight();
$resource = $image->getCore();
try {
// set image tile filling
$source = new Decoder();
$tile = $source->init($filling);
imagesettile($image->getCore(), $tile->getCore());
$filling = IMG_COLOR_TILED;
} catch (\Intervention\Image\Exception\NotReadableException $e) {
// set solid color filling
$color = new Color($filling);
$filling = $color->getInt();
}
imagealphablending($resource, true);
if (is_int($x) && is_int($y)) {
// resource should be visible through transparency
$base = $image->getDriver()->newImage($width, $height)->getCore();
imagecopy($base, $resource, 0, 0, 0, 0, $width, $height);
// floodfill if exact position is defined
imagefill($resource, $x, $y, $filling);
// copy filled original over base
imagecopy($base, $resource, 0, 0, 0, 0, $width, $height);
// set base as new resource-core
$image->setCore($base);
imagedestroy($resource);
} else {
// fill whole image otherwise
imagefilledrectangle($resource, 0, 0, $width - 1, $height - 1, $filling);
}
isset($tile) ? imagedestroy($tile->getCore()) : null;
return true;
}
/**
* Applies filter effects to the given image
*
* @param Image\Image $image The image to filter.
*
* @return Image\Image The filtered image.
*
* @throws FilterException if the image filter algorithm fails.
*/
public function applyFilter(Image\Image $image)
{
$gd = $image->getCore();
$width = imagesx($gd);
$height = imagesy($gd);
for ($x = 0; $x < $width; ++$x) {
for ($y = 0; $y < $height; ++$y) {
$rgba = imagecolorsforindex($gd, imagecolorat($gd, $x, $y));
$r = $rgba['red'];
$g = $rgba['green'];
$b = $rgba['blue'];
$a = $rgba['alpha'];
list($h, $s, $l) = ColorConverter::rgbToHsl($r, $g, $b);
$h += $this->hue / 100;
if ($h > 1.0) {
$h -= 1.0;
}
list($r, $g, $b) = ColorConverter::hslToRgb($h, $s, $l);
imagesetpixel($gd, $x, $y, imagecolorallocatealpha($gd, $r, $g, $b, $s));
}
}
$image->setCore($gd);
return $image;
}
/**
* Fills image with color or pattern
*
* @param \Intervention\Image\Image $image
* @return boolean
*/
public function execute($image)
{
$filling = $this->argument(0)->value();
$x = $this->argument(1)->type('digit')->value();
$y = $this->argument(2)->type('digit')->value();
$imagick = $image->getCore();
try {
// set image filling
$source = new Decoder();
$filling = $source->init($filling);
} catch (\Intervention\Image\Exception\NotReadableException $e) {
// set solid color filling
$filling = new Color($filling);
}
// flood fill if coordinates are set
if (is_int($x) && is_int($y)) {
// flood fill with texture
if ($filling instanceof Image) {
// create tile
$tile = clone $image->getCore();
// mask away color at position
$tile->transparentPaintImage($tile->getImagePixelColor($x, $y), 0, 0, false);
// create canvas
$canvas = clone $image->getCore();
// fill canvas with texture
$canvas = $canvas->textureImage($filling->getCore());
// merge canvas and tile
$canvas->compositeImage($tile, \Imagick::COMPOSITE_DEFAULT, 0, 0);
// replace image core
$image->setCore($canvas);
// flood fill with color
} elseif ($filling instanceof Color) {
// create canvas with filling
$canvas = new \Imagick();
$canvas->newImage($image->getWidth(), $image->getHeight(), $filling->getPixel(), 'png');
// create tile to put on top
$tile = clone $image->getCore();
// mask away color at pos.
$tile->transparentPaintImage($tile->getImagePixelColor($x, $y), 0, 0, false);
// save alpha channel of original image
$alpha = clone $image->getCore();
// merge original with canvas and tile
$image->getCore()->compositeImage($canvas, \Imagick::COMPOSITE_DEFAULT, 0, 0);
$image->getCore()->compositeImage($tile, \Imagick::COMPOSITE_DEFAULT, 0, 0);
// restore alpha channel of original image
$image->getCore()->compositeImage($alpha, \Imagick::COMPOSITE_COPYOPACITY, 0, 0);
}
} else {
if ($filling instanceof Image) {
// fill whole image with texture
$image->setCore($image->getCore()->textureImage($filling->getCore()));
} elseif ($filling instanceof Color) {
// fill whole image with color
$draw = new \ImagickDraw();
$draw->setFillColor($filling->getPixel());
$draw->rectangle(0, 0, $image->getWidth(), $image->getHeight());
$image->getCore()->drawImage($draw);
}
}
return true;
}
/**
* Resizes image boundaries
*
* @param \Intervention\Image\Image $image
* @return boolean
*/
public function execute($image)
{
$width = $this->argument(0)->type('digit')->required()->value();
$height = $this->argument(1)->type('digit')->required()->value();
$anchor = $this->argument(2)->value('center');
$relative = $this->argument(3)->type('boolean')->value();
$bgcolor = $this->argument(4)->value();
$original_width = $image->getWidth();
$original_height = $image->getHeight();
// check of only width or height is set
$width = is_null($width) ? $original_width : intval($width);
$height = is_null($height) ? $original_height : intval($height);
// check on relative width/height
if ($relative) {
$width = $original_width + $width;
$height = $original_height + $height;
}
// check for negative width/height
$width = $width <= 0 ? $width + $original_width : $width;
$height = $height <= 0 ? $height + $original_height : $height;
// create new canvas
$canvas = $image->getDriver()->newImage($width, $height, $bgcolor);
// set copy position
$canvas_size = $canvas->getSize()->align($anchor);
$image_size = $image->getSize()->align($anchor);
$canvas_pos = $image_size->relativePosition($canvas_size);
$image_pos = $canvas_size->relativePosition($image_size);
if ($width <= $original_width) {
$dst_x = 0;
$src_x = $canvas_pos->x;
$src_w = $canvas_size->width;
} else {
$dst_x = $image_pos->x;
$src_x = 0;
$src_w = $original_width;
}
if ($height <= $original_height) {
$dst_y = 0;
$src_y = $canvas_pos->y;
$src_h = $canvas_size->height;
} else {
$dst_y = $image_pos->y;
$src_y = 0;
$src_h = $original_height;
}
// make image area transparent to keep transparency
// even if background-color is set
$rect = new \ImagickDraw();
$fill = $canvas->pickColor(0, 0, 'hex');
$fill = $fill == '#ff0000' ? '#00ff00' : '#ff0000';
$rect->setFillColor($fill);
$rect->rectangle($dst_x, $dst_y, $dst_x + $src_w - 1, $dst_y + $src_h - 1);
$canvas->getCore()->drawImage($rect);
$canvas->getCore()->transparentPaintImage($fill, 0, 0, false);
$canvas->getCore()->setImageColorspace($image->getCore()->getImageColorspace());
// copy image into new canvas
$image->getCore()->cropImage($src_w, $src_h, $src_x, $src_y);
$canvas->getCore()->compositeImage($image->getCore(), \Imagick::COMPOSITE_DEFAULT, $dst_x, $dst_y);
$canvas->getCore()->setImagePage(0, 0, 0, 0);
// set new core to canvas
$image->setCore($canvas->getCore());
return true;
}
