function makethumb($srcFile, $dstFile, $dstW, $dstH, $imwf = false)
{
$im = new imagick($srcFile);
$source_w = $im->getImageWidth();
$source_h = $im->getImageHeight();
if ($dstW === 0 && $dstH === 0) {
$dstW = $source_w;
$dstH = $source_h;
} else {
// 取得縮在此範圍內的比例
$percent = getResizePercent($source_w, $source_h, $dstW, $dstH);
$dstW = $source_w * $percent;
$dstH = $source_h * $percent;
}
$im->thumbnailImage($dstW, $dstH);
$im->writeImage($dstFile);
$watermarkFile = './logo.png';
if ($imwf && is_file($watermarkFile) && is_file($dstFile)) {
$image = new imagick($dstFile);
$watermark = new imagick($watermarkFile);
$iWidth = $image->getImageWidth();
$iHeight = $image->getImageHeight();
$wWidth = $watermark->getImageWidth();
$wHeight = $watermark->getImageHeight();
if ($iHeight < $wHeight || $iWidth < $wWidth) {
$watermark->scaleImage($iWidth, $iHeight);
$wWidth = $watermark->getImageWidth();
$wHeight = $watermark->getImageHeight();
}
$x = ($iWidth - $wWidth) / 2;
$y = ($iHeight - $wHeight) / 2;
$image->compositeImage($watermark, imagick::COMPOSITE_OVER, $x, $y);
$image->writeImage($dstFile);
}
}
/**
The MIT License
*
* 抓取要縮圖的比例, 下述只處理 jpeg
* $from_filename : 來源路徑, 檔名, ex: /tmp/xxx.jpg
* $save_filename : 縮圖完要存的路徑, 檔名, ex: /tmp/ooo.jpg
* $in_width : 縮圖預定寬度
* $in_height: 縮圖預定高度
* $quality : 縮圖品質(1~100)
*
* Usage:
* ImageResize('ram/xxx.jpg', 'ram/ooo.jpg');
*/
function ImageResize($from_filename, $save_filename, $in_width = 9999, $in_height = 9999, $quality = 100)
{
$allow_format = array('jpeg', 'png', 'gif');
$sub_name = $t = '';
// Get new dimensions
$img_info = getimagesize($from_filename);
$width = $img_info['0'];
$height = $img_info['1'];
$imgtype = $img_info['2'];
$imgtag = $img_info['3'];
$bits = $img_info['bits'];
$channels = $img_info['channels'];
$mime = $img_info['mime'];
if ($width > 1500 || $height > 1500) {
return false;
exit;
}
list($t, $sub_name) = split('/', $mime);
if ($sub_name == 'jpg') {
$sub_name = 'jpeg';
}
if (!in_array($sub_name, $allow_format)) {
return false;
}
// 取得縮在此範圍內的比例
$percent = getResizePercent($width, $height, $in_width, $in_height);
$new_width = $width * $percent;
$new_height = $height * $percent;
// Resample
$image_new = imagecreatetruecolor($new_width, $new_height);
// $function_name: set function name
// => imagecreatefromjpeg, imagecreatefrompng, imagecreatefromgif
/*
// $sub_name = jpeg, png, gif
$function_name = 'imagecreatefrom'.$sub_name;
$image = $function_name($filename); //$image = imagecreatefromjpeg($filename);
*/
if ($sub_name == "png") {
$image = imagecreatefrompng($from_filename);
imagecopyresampled($image_new, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
return imagepng($image_new, $save_filename, $quality);
} else {
if ($sub_name == "gif") {
$image = imagecreatefromgif($from_filename);
imagecopyresampled($image_new, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
return imagegif($image_new, $save_filename, $quality);
} else {
$image = imagecreatefromjpeg($from_filename);
imagecopyresampled($image_new, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
return imagejpeg($image_new, $save_filename, $quality);
}
}
}
$save_filename = 'upload/' . $gdir . '/';
if ($save_filename && !is_dir($save_filename)) {
mkdir($save_filename, 0777, true);
} else {
$file = strtolower(basename($url));
if (is_file($save_filename . $file) != NULL && filemtime($save_filename . $file) >= strtotime("-3 days")) {
$check_img = 1;
$image = open_image($save_filename . $file);
imageinterlace($image, 1);
//--將圖片轉換為漸進式模
imagejpeg($image);
}
}
if ($check_img != 1) {
//縮圖比例
$percent = getResizePercent($w, $h, $new_w, $new_h);
//比預設縮圖小就不用縮
if ($percent == 1) {
imagejpeg($image, $save_filename . strtolower(basename($url)));
imageinterlace($image, 1);
//--將圖片轉換為漸進式模
imagejpeg($image);
} else {
$new_w = $w * $percent;
$new_h = $h * $percent;
//建立縮圖圖片
$im2 = ImageCreateTrueColor($new_w, $new_h);
imagecopyResampled($im2, $image, 0, 0, 0, 0, $new_w, $new_h, $w, $h);
$image = $im2;
imagejpeg($image, $save_filename . strtolower(basename($url)));
imageinterlace($image, 1);
function ImageResize($from_filename, $save_filename, $in_width = 1024, $in_height = 1024, $quality = 100)
{
$allow_format = array('jpeg', 'png', 'gif');
$sub_name = $t = '';
// Get new dimensions
$img_info = getimagesize($from_filename);
$width = $img_info['0'];
$height = $img_info['1'];
$imgtype = $img_info['2'];
$imgtag = $img_info['3'];
$bits = $img_info['bits'];
$channels = $img_info['channels'];
$mime = $img_info['mime'];
list($t, $sub_name) = split('/', $mime);
if ($sub_name == 'jpg') {
$sub_name = 'jpeg';
}
/*
if (!in_array($sub_name, $allow_format)) {
return false;
}
*/
// 取得縮在此範圍內的比例
$percent = getResizePercent($width, $height, $in_width, $in_height);
if ($percent == 1) {
return move_uploaded_file($from_filename, $save_filename);
}
$new_width = $width * $percent;
$new_height = $height * $percent;
// Resample
$image_new = imagecreatetruecolor($new_width, $new_height);
// $function_name: set function name
// => imagecreatefromjpeg, imagecreatefrompng, imagecreatefromgif
/*
// $sub_name = jpeg, png, gif
$function_name = 'imagecreatefrom' . $sub_name;
if ($sub_name=='png')
return $function_name($image_new, $save_filename, intval($quality / 10 - 1));
$image = $function_name($from_filename); //$image = imagecreatefromjpeg($from_filename);
*/
$image = imagecreatefromjpeg($from_filename);
imagecopyresampled($image_new, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
imageinterlace($image_new, 1);
//--將圖片轉換為漸進式模式
return imagejpeg($image_new, $save_filename, $quality);
imagedestroy($im);
}