使用Wand + ImageMagick调整GIF大小 [英] Resizing GIFs with Wand + ImageMagick

问题描述

我正在使用），GIF正确调整大小，符合预期：

这我目前正在调整图像的大小：

  with image（filename =src.gif）as img：
 img.resize（50,50）
 img.save（dest.gif）
  

<我也试过了通过每个框架进行分类并单独调整大小：

 使用Image（filename =src.gif）作为img：
 for img.sequence中的帧：
 frame.resize（50,50）
 frame.destroy（）
 img.save（dest.gif）
  

两者都产生与上面相同的结果。我做错了什么？

解决方案

您可以尝试打开新目标图像并将每一帧循环到：

 使用Image（）作为dst_image：
 with Image（filename = src_path ）作为src_image：
 for src_image.sequence中的帧：
 frame.resize（x，y）
 dst_image.sequence.append（frame）
 dst_image.save（filename = dst_path ）
  

适合我。

I am using Wand 0.3.7 with ImageMagick 6.8.8-10 to batch-resize some animated GIF files I have. But for some reason, Wand only resizes one frame in the image, leaving the others at their original size.

Here is the original image I am trying to resize:

And here is the output from Wand:

If I use ImageMagick from the command line directly (following instructions from here), the GIF is correctly resized, as expected:

This is how I am currently resizing the image:

with Image(filename="src.gif") as img:
    img.resize(50, 50)
    img.save("dest.gif")

I have also tried iterating through each frame and resizing them individually:

with Image(filename="src.gif") as img:
    for frame in img.sequence:
        frame.resize(50, 50)
        frame.destroy()
    img.save("dest.gif")

Both produce the same result seen above. What am I doing wrong?

解决方案

You might try opening a new target Image and loop every frame into that:

with Image() as dst_image:
    with Image(filename=src_path) as src_image:
        for frame in src_image.sequence:
            frame.resize(x, y)
            dst_image.sequence.append(frame)
    dst_image.save(filename=dst_path)

works for me.

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