Prime pix & tutorial on avoiding streaks

[eried]

Very nice gallery. I am impressed how noticeable is this bit limitation in the Sky/Pacific sea image you show as example in your webpage. Now the question is if this is a limitation in DIMGROB_P or in the calculator 'graphical system' (PIXEL_P accepts 8 bit R,G,B values).

I tried to improve that sea image via code without success (to get an automated conversion rather than using an editor, then the image converter, then sending the code), probably the image editor is doing something a bit more advanced than simple dithering.

I added all the dithering options Windows GDI+ v1.1 provides (Vista or newer) related to ARGB1555 conversions to my little app, but the result is usually better doing your process with the image editor (... in other hand, sometimes it's good to have 1 click away images ):