Gif image processing - How to use php to decompose gif into frames? The GIFDecoder used, imagick cannot install it.

The current effect is as follows, some gif frames only have part of it

Pictures to be processed:

Processed image:

That’s it, except for the first frame, everything else is just the moving part. .
How to solve it?

Imagick cannot be installed, always showing class ‘imagick’ not found

Reply content:

The current effect is as follows, some gif frames only have part of it

Pictures to be processed:

Processed image:

That’s it, except for the first frame, everything else is just the moving part. .
How to solve it?

Imagick cannot be installed, always showing class ‘imagick’ not found