Altera Video and Image Processing Suite - Manual (Page 141)

Color Space Conversion IP Cores
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2015.05.04
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The Color Space Conversion IP cores transform video data between color spaces. The color spaces allow
you to specify colors using three coordinate values.
You can configure these IP cores to change conversion values at run time using an Avalon-MM slave
interface.
IP Cores Feature
Color Space Converter (CSC)
• Provides a flexible and efficient means to convert image
data from one color space to another.
• Supports a number of predefined conversions between
standard color spaces.
• Allows the entry of custom coefficients to translate
between any two three-valued color spaces.
• Supports 1 pixel per transmission.
Color Space Converter II
• Provides a flexible and efficient means to convert image
data from one color space to another.
• Supports a number of predefined conversions between
standard color spaces.
• Allows the entry of custom coefficients to translate
between any two three-valued color spaces.
• Supports up to 4 pixels per transmission.
A color space is a method for precisely specifying the display of color using a three-dimensional
coordinate system. Different color spaces are best for different devices, such as R'G'B' (red-green-blue) for
computer monitors or Y'CbCr (luminance-chrominance) for digital television.
Color space conversion is often necessary when transferring data between devices that use different color
space models. For example, to transfer a television image to a computer monitor, you are required to
convert the image from the Y'CbCr color space to the R'G'B' color space. Conversely, transferring an
image from a computer display to a television may require a transformation from the R'G'B' color space to
Y'CbCr.
Different conversions may be required for standard definition television (SDTV) and high definition
television (HDTV). You may also want to convert to or from the Y'IQ (luminance-color) color model for
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