The Levels Command is a good way to manipulate the tonal values of an image, image sequence, or movie. As part of its function, the Levels properties in the Effects Controls have sliders representing scales from 0 to 255 for many channels and qualities in an image. Adjusting them will affect the highlight, shadows, and gamma (or mid-tones).<\/p>\n
Referring to the Levels properties, there are three particular Input Level sliders you should manipulate to adjust the black-point, white-point, and gamma in the image. The specific ones to consider are:<\/p>\n
The others, the Output Levels and distinct Red, Green, and Blue values aren\u2019t always necessary, although finessing them will affect very fine details.<\/p>\n
When you move the sliders, you will subsequently increase the overall contrast of the image.<\/p>\n
To find the Levels, take the following steps:<\/p>\n
Output levels compress the tonal range of an image into fewer values than 255 steps of grey. Quite often, the input levels should suffice.<\/p>\n