MobileRead Forums - View Single Post - Sony Reader for PC -- not rendering 16-color png

GrannyGrump · 10-01-2013, 05:41 AM

But reduced-color png brings us back to square one ---- the ADE engine in some devices can not properly render 2-bit (2-colors) or 4-bit (16 colors).

So it looks like being stuck with either 8-bit 256-color png with its larger file-size, or with crushed jpegs in 256-greyscale, smaller files but compression artifacts.

But the 256->16->256 png makes a pretty small file, so probably would be the way to go with images with low color count.

10-01-2013, 05:41 AM	#18
GrannyGrump Obsessively Dedicated... Posts: 3,233 Karma: 35158061 Join Date: May 2011 Location: PA {back in the usa!} Device: Sony PRS-T2, ADE on PC	But reduced-color png brings us back to square one ---- the ADE engine in some devices can not properly render 2-bit (2-colors) or 4-bit (16 colors). So it looks like being stuck with either 8-bit 256-color png with its larger file-size, or with crushed jpegs in 256-greyscale, smaller files but compression artifacts. But the 256->16->256 png makes a pretty small file, so probably would be the way to go with images with low color count. Last edited by GrannyGrump; 10-01-2013 at 05:44 AM.