CompuServe Messages

#Image compression

    15-Oct-94 07:00:03
Sb: #129131-#Image compression
Fm: Gus Grubba 70673,1605
To: Robert A. Weil 75121,2507
Sorry but I'm not sure I understood. You have an AVI file that you converted to a series of Targas going from 320×240 to 512×486 in the process. That alone would make it below "great looking". I assume you cranked up the contrast with BRTCON (I had totally forgotten about that one). Later you ran the series of Targas through Pennelo? Ok, if that's the case… I guess if you use one of those radical paint process, the fact the original has been enlarged won't matter much. A lot of image information is lost any way (so to speak). It's more of a visual thing than a rule of thumb. If it looks good, who cares what's the "kosher" thing to do? <g> Pennello applies its effects by creating "brushes" based on the underlining image and alpha masks with all sorts of forms (tiny gray scale bitmaps with different shapes and textures). These brushes "collect" image data and "paint" with it. It's sort of like having a [painter's] palette full of colors and picking some colors here and there. You won't use every single color. That's the reason it doesn't matter much the image has been enlarged 3.5 times.