moderated Re: Question about image processing #misc


On 2021-10-26 15:02, Christos Psarras via wrote:
I'm not sure if you embedded those PNGs in your message through email or online, but it seems emailed 256-color/8-bit embeds retain their colorspace encoding but online embeds get upscaled to 16 million colors / 24-bit, so for online embedding that doesn't seem right and it would increase file size.
To clarify, this happens during online posting on embedded PNG images which are bigger than 640 pixels and need to be scaled down.  If 640 or less they stay the same colorspace.


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