php ImageMagick gif調整大小保持動畫

Question

上傳後，gif被調整大小，但動畫丟失。我究竟做錯了什麼？

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(); } 

沒有發現異常。

Array 
(
    [versionNumber] => 1608 
    [versionString] => ImageMagick 6.4.8 2011-03-20 Q16 OpenMP http://www.imagemagick.org 
) 

Answer 1

試試這個：http://www.php.net/manual/en/imagick.coalesceimages.php
第一個評論，似乎像什麼ü需要。 你不應該混合GD2庫（「imagecreatefromgif」）和Imagick。

Answer 2

我用這個功能：

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); 

}