A ColorModel is typically associated with an Image or BufferedImage and provides the information necessary to correctly interpret pixel values. ColorModel is defined in the java.awt.image package. ColorSpace - represents a system for measuring colors, typically using three separate values or components. ColorSpace is defined in the java.awt.color package. Color - a fixed color, defined in terms of its components in a particular ColorSpace .
Color is defined in the java.awt package.
A ColorModel is used to interpret pixel data in an image. Converting pixel data through a lookup table To determine the color value of a particular pixel in an image, you need to know how the color information is encoded in each pixel. The ColorModel associated with an image encapsulates the data and methods necessary for translating a pixel value to and from its constituent color components. This class can be used only with ColorSpaces of type ColorSpace. IndexColorModel - works with pixel values consisting of a single sample that is an index into a fixed colormap in the default sRGB ColorSpace.