[英]php ImageMagick gif resize keep animation
上傳后,gif會調整大小,但動畫會丟失。 我究竟做錯了什么?
try
{
$animation = new Imagick($this->image_filename);
foreach ($animation as $frame)
{
$frame->thumbnailImage($width, $height);
$frame->setImagePage($width, $height, 0, 0);
}
$animation->writeImages($this->image_filename, true);
echo "<img src='".$this->image_filename."' />";
$this->image = imagecreatefromgif($this->image_filename);
}
catch(Exception $e){ echo $e->getMessage(); }
沒有例外。
Array
(
[versionNumber] => 1608
[versionString] => ImageMagick 6.4.8 2011-03-20 Q16 OpenMP http://www.imagemagick.org
)
試試這個: http : //www.php.net/manual/en/imagick.coalesceimages.php
第一條評論看起來像你需要的。 你永遠不應該混合GD2庫(“imagecreatefromgif”)和Imagick。
我用過這個函數:
function gifResize($file_origin,$file_dest,$percent){
$percent = $percent*100;
$crop_w = 0;
$crop_h = 0;
$crop_x = 0;
$crop_y = 0;
$image = new Imagick($file_origin);
$originalWidth = $image->getImageWidth();
$originalHeight = $image->getImageHeight();
$size_w = ($originalWidth*$percent)/100;
$size_h = ($originalHeight*$percent)/100;
if(($size_w-$originalWidth)>($size_h-$originalHeight)){
$s = $size_h/$originalHeight;
$size_w = round($originalWidth*$s);
$size_h = round($originalHeight*$s);
}else{
$s = $size_w/$originalWidth;
$size_w = round($originalWidth*$s);
$size_h = round($originalHeight*$s);
}
echo "$originalWidth $size_w - $originalHeight $size_h";
$image = $image->coalesceImages();
foreach ($image as $frame) {
$frame->cropImage($crop_w, $crop_h, $crop_x, $crop_y);
$frame->thumbnailImage($size_h, $size_w);
$frame->setImagePage($size_h, $size_w, 0, 0);
}
$imageContent = $image->getImagesBlob();
$fp = fopen($file_dest,'w');
fwrite($fp,$imageContent);
fclose($fp);
}
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