Functions Available in Color Adjustment

Change Contrast

Increases or decreases the contrast of the image.

Change Hue

Changes the hue of colors in an image by rotating the color wheel a specified number of degrees.

Change Intensity

Changes the intensity (brightness) of the image.

Change Saturation

Increases or decreases the saturation of colors in an image.

Gamma Correct

Adjusts the intensity of colors in an image by changing the gamma constant that is used to map the intensity values.

Histogram Contrast

Increases or decreases the contrast of the image using its histogram to determine the median brightness as opposed to using an arbitrary value of 128. This function finds the median brightness of the image, then brightens the pixels with values above the median and darkens the pixels with values below the median.

Invert

Inverts the colors in the specified image, making it like a photographic negative.

Posterize

Imposes a poster effect on an image by quantizing the image's colors to a specified number of color levels per plane. For example, two levels mean two of red, two of green, and two of blue.

Remap Intensity

Uses a lookup table to change an image's intensity values. You can apply the change to red, green, blue, or all color channels.

Solarize

Applies an effect that mimics the accidental exposure of photographic film to light. It does so by inverting all color data with an intensity value greater than or equal to the threshold that you specify.

Window Level Bitmap

Converts a 12 or 16-bit grayscale image to an 8-bit grayscale or a 24-bit RGB image.

Remap Hue

Uses a lookup table to change an image's hue values.

Gray Scale

Converts any image to a gray scale image without changing its resolution.

Swap Colors

Swaps the specified color channels.

Balance Colors

Redistributes the RGB values of the specified image, using the values stored in the specified structures.

Convert To Colored Gray

Converts an image to a grayscale image, and then enhances the color components based on the specified parameters.

Desaturate

Converts the image to a grayscale level by reducing the saturation of each color to zero. The conversion will not change the color resolution.

Gamma Correct Extended

Adjusts the intensity of colors in an image by changing the gamma constant that is used to map the intensity values. Either of two different color spaces can be specified.

Adjust Tint

Adjusts the image tint by changing the colors in an image by using two separate color wheel rotations.

Color Halftone

Converts a 1-, 4-, 8-, 16-, 24-, or 32-bit image to a halftoned image, with a specified pattern rotation. A halftoned image is a 1-bit image that has been dithered for black and white printing or display.

Halftone Pattern

Creates a halftone screen effect for an image while keeping its continuous range of tones.

Color Resolution

Converts an image from any bits-per-pixel to any bits-per-pixel.

Fill Image

Fills the specified image with the specified color.

Sample Target

Corrects color values by shifting the sample colors to the target colors

Half Tone

Converts an image with any resolution to a halftoned image, with a specified pattern rotation.

Channel Mix

Redistributes the RGB values of the specified image according to specified mixing rule.

GrayScale To Duotone

Converts the grayscale image into a colored one by mixing or replacing the original values of the pixels with new colors

GrayScale To Multitone

Converts a grayscale image into a colored one by mixing or replacing the original values of the pixels with one or more new colors

Selective Color

Applies a selective color to an image

Color Level

Applies color leveling to an image. It changes the image shadows, midtones and highlights

Auto Color Level

Applies one of several types of automatic color leveling to an image

Color Replace

Replace specified colors by adjusting new value of hue, saturation and brightness

Change Hue Saturation Intensity

Change the hue, saturation and intensity for all or specified colors in the image

Functional Light

Lights the image according to a certain function-based distribution, hi-lighting, or darken some regions inside the image. You can also add some noise as lines or circles inside the image.

Colorize Gray

Colorize the grayscale image by specifying ranges of grayscale intensities and their corresponding RGB value

Brightness Contrast Intensity

Applies contrast, brightness and intensity adjustments to enhance the image tonal range

Color Intensity Balance

Change the distribution of the red, green, or blue channels

Color Separate

Separates the specified image by color plane to produce one grayscale image per plane. You can specify any of several color-space models, including CMYK.

Color Merge

Creates a color image by merging grayscale images that were created as color separations.

Remove Red Eye

Removes the "red eye" effect in color images by converting the red color in the eye to the new specified color.

Stretch Intensity

Enhances the image details by increasing the contrast (image levels) in an image by centering, maximizing, and proportioning the range of intensity values according to its histogram values. Unlike ordinary contrast, Stretch Intensity always retains the original number of different intensity values. (Ordinary contrast adjustments can lose values at the high and low ends of the scale.)