03-15-2021, 01:02 PM
(03-15-2021, 10:43 AM)AncientxFreako Wrote: I've recently had some issues with GIMP generating alpha channels after editing images when using layers. Upon exporting to .png, the alphas get left in. I'm being told by an ace programmer that this is a ridiculous thing that GIMP should not do. I really, really like GIMP, and would rather continue using it. Is there an update that deals with this without a plugin? And btw, I haven't seen a good plugin that even does decent batch alpha removal.
Always easier to remove something unwanted than to recover something that has been removed too early.
When you export a PNG, you can specify formats without alpha channels (RGB instead of RGBA). In addition if you don't need the alpha channel, one can assume that the image is fully opaque and therefore the alpha channel is 255 everywhere, in which case the PNG format compresses it very well and the size increase due to the alpha is minor ( a few percent).
PS: real ace programmers are too clever to make blanket statements.