Quick Tip: Reduce Digital Noise with Photoshop
Have you ever had an image that has bits of color in it that clearly shouldn’t be there? I suppose there are all sorts of reasons they may be there (High ISO, low light…), but all some people care about is that they’re there and they want them to go away! When you see a big splotch of red on a blue shirt, it seems the simple thing to do is to do a Hue / Saturation adjustment, use the dropper to select the red and change the hue and saturation until you have a better match, but the truth is if you do that, the selection won’t be red, it’ll be the same color as the color the splotch is on, or blue. So no go on that. Besides, getting the colors to match, even somewhat, would be a pain, especially if you had a lot of photos taken at the same time, in the same conditions. So, the bad news is you can’t make them just easily go away. You can reduce them, though, and do it pretty fast, too. [More]
