The colour depth is one of the most effective aspects of color presentation, and it has considered as numbers of colors bits. These colors bits have used for representing the colors in a single pixel through a bitmapped image or video. Also, this sort of concept is known as bits per pixel. Typically, when the colour depth specified with tons of bits used, so that higher colour depth offers a wide range of different colors.
Keep in mind that colour depth has used to explain almost all colors that are using in the picture. There are so many users using assortment colours depth like 4bit, 8bit, 12bit, 16 bit direct color. If you want to use these sorts of bits, then you need to collect more information about the colour depth. By using of maximum colour depth in the image, you can get superb and excellent printed images of your pictures. With low color depth, stored value is generally the number representing index in the color map and palette. Colors accessible in palette itself is fixed by hardware and modifiable within limits of a hardware (for example, both the color Macintosh systems or VGA equipped IBMPCs generally ran at 8bit because of limited VRAM, however whereas best VGA systems just offered the 18bit palette from that colors can be selected, all the color Macintosh hardware offered the 24bit (16million palette of color). The modifiable palettes are at times been referred as the pseudocolor palettes. As number of the bits increases, number of the possible colors gets impractically large for the color map. Thus, in the higher color depths, color value generally straight encodes relative brightnesses of RGB to specify the color in RGB color model.