Why do we convert RGB to YCbCr?

Image and Video consumes a lot of data. One of the reasons is because they are represented in the RGB format. However, is not worth to store or transmit information in this color space representaion, once it has a large bandwidth. Thus all the pixels should be converted to YCbCr to accomplish that.

What is the function conversion from RGB to YIQ?

YIQ = rgb2ntsc( RGB ) converts the red, green, and blue values of an RGB image to luminance (Y) and chrominance (I and Q) values of an NTSC image.

Where does the YIQ color model used and why?

YIQ is the color space used by the NTSC color TV system, employed mainly in North and Central America, and Japan. I stands for in-phase, while Q stands for quadrature, referring to the components used in quadrature amplitude modulation.

Why is YCbCr better than RGB?

YCbCr is a consumer video format and this is the way HD is encoded. RGB is the traditional computer format. One is not superior to the other because each has it’s own strengths and weaknesses. YCbCr is preferred because it is the native format.

What is YCbCr in image processing?

YCbCr, Y′CbCr, or Y Pb/Cb Pr/Cr, also written as YCBCR or Y′CBCR, is a family of color spaces used as a part of the color image pipeline in video and digital photography systems. Y′ is the luma component and CB and CR are the blue-difference and red-difference chroma components.

How do you convert R, G, B to YUV?

HDTV with BT. This decision further impacted on the matrix for the Y′UV↔RGB conversion so that its member values are also slightly different. As a result, with SDTV and HDTV there are generally two distinct Y′UV representations possible for any RGB triple: a SDTV-Y′UV and a HDTV-Y′UV one.

How an R, G, B model is represented using HSI format?

Conversion between HSI and RGB. Any color pixel (R, G, B) is standardized according to r = R/(R+G+B), g = G/(R+G+B) and b = B/(R+G+B) so that r + g + b = 1. The HSI chromaticity triangle, for a given intensity, corresponds to a plane through the RGB color cube perpendicular to the line from black to white.

What is Yiq model?

YIQ: YIQ is the most widely colour model used in Television broadcasting. Y stands for luminance part and IQ stands for chrominance part. In the black and white television, only the luminance part (Y) was broadcast. The y value is similar to the grayscale part. The colour information is represented by the IQ part.

How CMY and Yiq color models differ from RGB color model briefly explain?

The CMY (cyan-magenta-yellow) model is a subtractive model appropriate to absorption of colours, for example due to pigments in paints. Whereas the RGB model asks what is added to black to get a particular colour, the CMY model asks what is subtracted from white.