Warning: This month’s article requires GIMP, sorry Photoshop users. Intro It possible to extract different components from a picture, like the color or the details (so we can sharpen the picture). To extract this information we first must produce the opposite information. To extract the color we first create a black and white version. …
How We analyze the problem Sharpening and noise reduction directly affect each other. When reducing noise, the picture becomes blurrier. Increasing sharpness can enhance noise, and create sharpening artifacts. Taken to the extreme, noise can be eliminated, and sharpness can be enhanced, at the cost of loosing all the details in an image. …
Methods Of Changing Color More control can be gained over an image by decomposing an image first and then manipulating the color channels. In Photoshop you can change an image into LAB mode, but I can’t figure out how to change an image into HSV or YCrCb mode. In GIMP it’s easy. Download the G’MIC plug-in, if …
Composition. The absolute requirement of every image. In a match between a terrible out of focus dull looking image and an image with horrible uninteresting composition the terrible out of focus dull looking image would win. Master composition and you’ve mastered photography. Yes moving a few steps to the left or the right is that …