help!!!

system · February 25, 2001, 10:53am

with an given .h file with RGB color, how to reset the value for color? for example, if i want to reset the value for R is 0.4, etc.? Thanks.

Deiussum · February 25, 2001, 3:16pm

I’m not quite sure what you mean… can you be more specific what it is you are trying to do?

system · February 25, 2001, 3:25pm

after readin an image, how to reset the color for each pixel? each pixel should contains RGB, and I want to set a specific value for each color which makes L = .3R + .6G + .2B ?

thanks

Cardinal · February 25, 2001, 9:24pm

sounds very similar to a problem I discussed with a grad student just about a week ago… I would suggest trying to use scanline function to get a rgb value… then from there whatnot. Scanlines are fairly slow, but there aren’t a whole lot of other ways I know of to read values pixel by pixel