> I can therefore write the file on a Sam disk directly when it is finished.
Question is, why can't I on my PC? Anbody prepared to do a solution as this would put an end to most of my miseries. > 2. Use "PBMPlus" to dither the image. Now there is a program in this > toolkit called ppmquant which can either: (a) choose N colours and > dither the image to those, or (b) dither the image using a specified > set of colours. However it can not (c) choose the best N colours > from a specified set of colours. So I have to do one followed by the > other: first dither the image using all 128 Sam colours, then choose > 16 of them. Unfortunately, the result still isn't coloured with Sam > colours, and it has been dithered twice. So I optionally adjust the > set of colours, and then use the colourmap of the final image to dither > the original image into a new image (with me so far?...). This is always a problem when converting a PC GIF or whatever to Sam format, because the screen resolution is so (relitivley) low, all the dithering shows up and so what looked good on your PC looks poo on the Sam. I find that it is best with images to resample them to 256x192 as opposed to resizing as this keeps more of the detail, unfortunatley only 256 greys or 16m colour images can be done in this way so the colours look poor when dithered down. I use either PSP or LView Pro to dither (usually with a Floyd-Steinburg algoritm) and this comes out OK in some cases but many screens are turned to crud. It seems you just can't win all of the time. Dan Doore.
