The document discusses color models used in image processing. It describes the RGB, CMYK, and HSB color models. RGB represents colors with red, green and blue values and is used in monitors and cameras. CMYK represents colors with cyan, magenta, yellow and black values and is used in printing. A color model mathematically describes how colors can be represented by numbers in a coordinate system.

1. NADAR SARASWATHI
COLLEGE OF ARTS AND
SCIENCE
COLOR IMAGING PROCESSING COLOR MODELS
SUBMITTED BY :
M. ANUSHUYA
II M. SC (CS)

2. • Image processing, the hardware based color models mainly
used are: RGB, CMYK, and HSI. The RGB (red, green, blue) color
system is used mainly in color monitors and video cameras.
The CMYK (cyan, magenta, yellow, black) color system is used
in printing devices.
• Color model is an abstract mathematical model that describes
how colors can be represented as a set of numbers (e.g., a
triple in RGB or a quad in CMYK).

3. • Color models can usually be described using a coordinate
system, and each color in the system is represented by a single
point in the coordinate space
• The CMYK color model describes colors based on their
percentage of Cyan, Magenta, Yellow and Black. Many computer
printers and traditional “four-color” printing presses use the
CMYK model. In the CMYK model, by mixing cyan, magenta,
yellow and black inks or paints, you can create nearly any color
desired.

4. • Hue, saturation and brightness, or HSB, are aspects of color in
the red, green, and blue (RGB) scheme. These terms are most
often used in reference to the color of each pixel in a cathode
ray tube (CRT) or newer display.

5. • What is a color model in color image processing?
•
• A color model is an abstract mathematical model that describes
how colors can be represented as a set of numbers (e.g., a
triple in RGB or a quad in CMYK). Color models can usually be
described using a coordinate system, and each color in the
system is represented by a single point in the coordinate space.

6. • What are the 3 basic color models?
•
• Primary colour, any of a set of colours that can be used to mix
a wide range of hues. There are three commonly used primary
colour models: RGB (red, green, and blue), CMY (cyan, magenta,
and yellow), and RYB (red, yellow, and blue).

7. • What is Colour model and its types?
•
• A color model is a system used to describe a color. For example
with Red, Green and Blue (RGB) elements or Cyan, Magenta,
Yellow and Black (CMYK). A color space is a way of mapping
real colors to the color model’s particular values.

8. • What is 4 process color?
•
• As its name implies, 4 ink colors are used in 4-Color Process
printing. These four colors are Cyan, Magenta, Yellow, and
Black- which are known collectively as CMYK. In fact, 4-Color
Process printing is frequently referred to as CMYK printing.

9. • What is a color model in color image processing?
•
• A color model is an abstract mathematical model that describes how
colors can be represented as a set of numbers (e.g., a triple in RGB or
a quad in CMYK). Color models can usually be described using a
coordinate system, and each color in the system is represented by a
single point in the coordinate space.

10. • What is HSB color model in image processing?
• Hue, saturation and brightness, or HSB, are aspects of color in
the red, green, and blue (RGB) scheme. These terms are most
often used in reference to the color of each pixel in a cathode
ray tube (CRT) or newer display.

11. • What is HSB color model in image processing?
• Hue, saturation and brightness, or HSB, are aspects of color in
the red, green, and blue (RGB) scheme. These terms are most
often used in reference to the color of each pixel in a cathode
ray tube (CRT) or newer display.

12. THANK YOU