| Autocontrast |
Adjust the overall contrast and mixture of colors in an image automatically. It does not introduce or remove color casts. It maps the lightest and darkest pixels in the image to white and black, which makes highlights appear lighter and shadows appear darker. |
| Autolevels |
Define the lightest and darkest pixels in each color channel as white and black and then redistributes intermediate pixel values proportionately. Because this method adjusts each color channel individually, it may remove or introduce color casts. |
Brightness |
Let you make simple adjustments to the tonal range of an image. This method makes the same adjustment to every pixel in the image. It can result in a loss of detail in the image. |
Contrast |
Adjust the overall contrast and mixture of colors in an image automatically. It does not introduce or remove color casts. It maps the lightest and darkest pixels in the image to white and black, which makes highlights appear lighter and shadows appear darker. |
Gamma |
Adjust image gamma with Level parameter which measures the amount of change from the current gamma value. Higher gamma settings will show darker images and lower gamma settings will show lighter images. |
Hue |
Let you to adjust the hue of the entire image. Adjustment of the hue represents a movement around the color wheel. |
Lightness |
Let you to adjust the lightness of the entire image. |
Saturation |
Let you to adjust the saturation of the entire image. Adjusting the saturation of the color, represents a move across its radius. |
Red / Green / Blue |
let you to make simple adjustments to the tonal range of an image. This method makes the same adjustment to every pixel in the image. It can result in a loss of detail in the image. |
Desaturate |
Convert a color image to a grayscale image replacing each pixel with its lightness value in Hue-Lightness-Saturation presentation. The lightness value of each pixel does not change. |
Intensity |
Convert a color image to a grayscale image replacing each pixel with its intensity value. |
Invert |
When you invert an image, the brightness value of each pixel in the channels is converted to the inverse value on the 256-step color-values scale. For example, a pixel in a positive image with a value of 255 is changed to 0, and a pixel with a value of 5 to 250. |
Equalize |
Redistribute the brightness values of the pixels in an image so that they more evenly represent the entire range of brightness levels. |
Threshold |
Convert grayscale or color images to high-contrast, black-and-white images. You can specify a certain level as a threshold. All pixels lighter than the threshold are converted to white; all pixels darker are converted to black. The Threshold command is useful for determining the lightest and darkest areas of an image. |
Posterize |
Let you to specify the number of tonal levels for each channel in an image and then maps pixels to the closest matching level. |
