willnorris / gifresize Goto Github PK

currently, transformed images use the same color palette as the original image. This may cause some artifacting on resized images because a pixel may use a color average of its surrounding pixels that is not in the palette.

This is the same as gifsicle's "resize-colors" option:

Allow Gifsicle to add intermediate colors when resizing images. Normally, Gifsicle's resize algorithms use input images' color palettes without changes. When shrinking images with very few colors (e.g., pure black-and-white images), adding intermediate colors can improve the results.

is it possible to reduce resize duration by using goroutines for processing each frame? but it will affect cpu/memory usage

See discussion in willnorris/imageproxy#23 (comment)

We're experiencing an issue where, after applying cw-1 as option, a original, well-behaving GIF starts to flicker.
We have tried other parsing options but the result is the same.

Original GIF:

Output GIF (now flickering):

We're using latest version (v0.10.0).

currently, DisposalNone is assumed, which results in things like willnorris/imageproxy#61 where the frames have specified DisposalBackground.