Understanding Chromas in Image Processing

Chromas are the individual color values that make up an image. In other words, they represent the amount of each color present in a particular pixel of the image.

In an RGB (Red, Green, Blue) color space, for example, each pixel has three chromas: one for the red channel, one for the green channel, and one for the blue channel. Each chroma is represented by a value between 0 and 255, with 0 representing no color and 255 representing maximum intensity.

When combined, these chromas create the final color of the pixel, which is often displayed as a single color value (such as #FF0000 for pure red).

Chromas are important in image processing because they allow us to manipulate individual colors within an image, adjusting brightness, contrast, and saturation, among other things. They also play a key role in color correction and color grading, where the goal is to enhance or modify the overall color palette of an image.