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2004.12.07 12:21 "Re: Fetching pixel data from 4bit tiff", by Joris Van Damme
Dan,
> TIFF Directory at offset 0x8
That certainly is indeed a grayscale TIFF.
> Basically I'm trying to take a sample of pixels across the middle of the
> image, both horizontal and vertical (yes I know the sample algo is wrong for
> the horizontal.. I've yet to get to that :) )
I'm no C guru myself (Delphi coder instead), but from a quick scan through the
code, it seems that the initialization, loop condition, and increment of i in
both loops is wrong. Try this instead:
for (i =TheImage.width/2*4;
i < (TheImage.width*TheImage.height*4);
i +=TheImage.width*4) {
for (i =TheImage.width*(TheImage.height/2)*4;
i <TheImage.width*(TheImage.height/2+1)*4;
i+=4) {
Quite possible I made a mistake myself, though, I'm not a C coder, sorry.
Joris Van Damme
info@awaresystems.be
http://www.awaresystems.be
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