CCD noise comes in two parts, luminance noise and chroma noise. Luminance noise makes an image look grainy on screen, but is usually not visible when printed. Chroma noise is visible as random red and blue pixels and is usually less obvious both on screen and printed. Removing luminance noise reduces the sharpness of the image and removing the chroma noise damages some of the correct color. So noise reduction is a balance between how much softness and color damage you are willing to accept vs. how much noise you want to remove. Unless you use an uncompressed mode with your camera, JPEG artifacts also get added into the mix.
CCD noise comes in two parts, luminance noise and chroma noise. Luminance noise makes an image look grainy on screen, but is usually not visible when printed. Chroma noise is visible as random red and blue pixels and is usually less obvious both on screen and printed. Removing luminance noise reduces the sharpness of the image and removing the chroma noise damages some of the correct color. So noise reduction is a balance between how much softness and color damage you are willing to accept vs. how much noise you want to remove. Unless you use an uncompressed mode with your camera, JPEG artifacts also get added into the mix. ...Show more →
Tony
Thanks Tony I took a quick look and it would seem I am an outdated guy with PSCS2. I can't see any reason buying any more of there stuff when I still can't figure out what I already have. Never been really great with the computer I always try to get the best I can in the Camera. Sometimes I wonder why I gave my Dark Room away At least there I knew what was going on, well sort of....
I'll keep trying as I am geting mail now on software that is suppost to remove noise. Something I just can't figure how and get a good photo from a bad one.
Lou
