Get the red, green, and blue color values

Once you have the pixel value:

• You can call the getr, getg, and getb functions
• To get the red, green, and blue color values respectively.

(You can also call the geta function to get the alpha value.)

Color values all range from 0 to 255.

A color value of 0 indicates the total absence of that color component.

A color value of 255 indicates the maximum intensity of that color component.

Values in between indicate a proportional amount of the color component.