使用PHP ImageMagick库为GIF动画添加水印

Question

这适用于没有动画的图像：

$image = new Imagick($file);

$format = strtolower($image->getImageFormat());

$watermark = new Imagick('watermark.png');
$watermark->scaleImage($image->getImageWidth(), $watermark->getImageHeight());

$image->addImage($watermark);

$image->resetIterator();
$combined = $image->appendImages(true);

$data = base64_encode($combined->getImageBlob());

echo '<img src="data:image/' . $format . ';base64,' . $data . '">';

我怎样才能为GIF动画制作这个作品？ 它只是将每一帧都放在彼此之下，并将水印放在下面。

Answer 1

请参阅以下网址我非常确定这对您非常满意： -

Watermark on animated gif with php

试试这个

$animation = ani.gif; 

$watermark = logo.png; 

$watermarked_animation = "morph.gif"; 

$cmd = " $animation -coalesce -gravity South ". 
" -geometry +0+0 null: $watermark -layers composite -layers optimize "; 

exec("convert $cmd $watermarked_animation "); 

另见

http://www.imagemagick.org/Usage/anim_mods/#composite

http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=21730