Photoeditingtutorials: 1.2 Known About Color Modes

1.2 Known About Color Mode

You like to known types of color modes and importance for photo editing.

Different types of color modes:

1.RGB mode (millions of colors)

2.CMYK mode (four-printed colors)

3.Index mode (256 colors)

4.Grayscale mode (256 grays)

5.Bitmap mode (2 colors)

The color mode or image mode determines how colors combined on the number of chIannels in a color model. Different color modes gives different levels of color detail and file size.

RGB Color mode

Photoshop RGB Color mode uses the RGB model, assigning an intensity value to each pixel. In 8-bits-per-channel images, the intensity values range from 0 (black) to 255 (white) for each of the RGB (red, green, blue) components in a color image.

RGB images use basically three colors, , to reproduce colors on screen.

Layers>Mode>RGB Color

CMYK Color mode

In the CMYK mode, each pixel is assigned a percentage value for each of the process inks. The lightest (highlight) colors are assigned small percentages of process ink colors; the darker (shadow) colors higher percentages.

Layers>Mode>CMYK Color

Grayscale mode

Grayscale mode uses different shades of gray in an image. In 8-bit images, there can be use up to 256 shades of gray. Every pixel of a grayscale image has a brightness value ranging from 0 (black) to 255 (white). In 16-and 32-bit images, the number of shades in an image is much greater than in 8-bit images.

This mode mainly used for creating black-white image.