Brightness/Contrast

Brightness/Contrast command let the user make simple adjustments to the tonal range of an image. Unlike Curves and Levels, which apply proportional adjustments to the pixels in an image (nonlinear adjustment) based on user's settings of black or white points or the gamma, this command makes the same adjustment to every pixel in the image (linear adjustment). The Brightness/Contrast command is not recommended for high-end output because it can result in loss of image details.

To use the Brightness/Contrast command:

Choose Image > Adjustments > Brightness/Contrast.

Dragging to the left decreases the level, to the right - increases it. The number on the right side of each slider value displays the brightness or contrast value. Values can range from -100 to +100