|Image Processing Toolbox|
YCbCr Color Space
The YCbCr color space is widely used for digital video. In this format, luminance information is stored as a single component (Y), and chrominance information is stored as two color-difference components (Cb and Cr). Cb represents the difference between the blue component and a reference value. Cr represents the difference between the red component and a reference value.
YCbCr data can be double precision, but the color space is particularly well suited to
uint8 data. For
uint8 images, the data range for Y is [16, 235], and the range for Cb and Cr is [16, 240]. YCbCr leaves room at the top and bottom of the full
uint8 range so that additional (nonimage) information can be included in a video stream.
rgb2ycbcr converts colormaps or RGB images to the YCbCr color space.
ycbcr2rgb performs the reverse operation.
For example, these commands convert the flowers image to YCbCr format.
RGB = imread('flowers.tif'); YCBCR = rgb2ycbcr(RGB);
|NTSC Color Space||HSV Color Space|