![]() Read the first image in the sample indexed image file, corn.tif. Limit the lightness range.Convert Indexed Image to RGB. a function handle that converts from sRGB to some kind of uniform colorspace (e.g. the number of colors, specified as a positive number. MAXDISTCOLOR generates an RGB colormap of maximally-distinct colors. For a character array HEX, RGB will have as many rows as HEX. For a cell array of color strings, RGB will have as many rows as elements of the cell array. RGB has three columns representing the red, green and blue component of the colour. RGB = HEX2RGB (HEX) converts the hexadimal color string HEX to its corresponding RGB values. These are then used to generate a linearly spaced vector "colors_p" which provides a smoother gradient from red to pink. When you multiply this by 256, To create colors manually and assign them to the marker values, start with the RGB values of last desired color in the shade, say light pink for this example (i.e. For example, the color crimson is represented as. So a value of 0.5 means 50% of the 256 range. Matlab normalizes each RGB value to this 256 range. As Rik Wisselink mentioned, RGB values are scaled to 0-255 (8 bit means 2^8 which equal 256). If you are you used to 255 color values from HTML for example, you can divide by 255 to get a value between 0 and 1. As others have pointed out, gray is the result of the Red, Green, and Blue are equal somewhere between 0 and 1 where black is and white is.
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