AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

2002.06.14 10:13 "", by Bernd Stahlbock
2002.06.15 01:13 "Re: your mail", by Michael Still

2002.06.15 01:13 "Re: your mail", by Michael Still

I'm trying to re-build a color tiff file from 4 monochrome tiff ccitt4 files, which are the color separated CMYK version of a true color image.

Is there a function in tifflib or is there a known algorithm to do that? A problem is that the separation process (ripping, rasterizing) puts a raster in the image, so that it's not possible to just add the 4 source images.

Have a surf for the colour space FAQ. This should describe the coefficients needed for each sample to convert back to RGB.

Mikal

PS: Computer Graphics: Practise and Programming (a book) is also good for this sort of thing

--

Michael Still (mikal@stillhq.com)     UMT+10hrs