Image processing decompression apparatus and method of using same different scaling algorithms simultaneously

An image processing apparatus and method includes a sub-sampler decompression unit that takes an inverse transformation to rebuild 411 sub sampled luminance/chrominance color space components which are than transformed into full resolution luminance/chrominance color space pixel data. The luminance/...

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Bibliographic Details
Main Author JIA CHARLES CHI
Format Patent
LanguageEnglish
Published 05.12.2006
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
HANDLING RECORD CARRIERS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:An image processing apparatus and method includes a sub-sampler decompression unit that takes an inverse transformation to rebuild 411 sub sampled luminance/chrominance color space components which are than transformed into full resolution luminance/chrominance color space pixel data. The luminance/chrominance color space pixel data is then separated into individual luminosity and chromaticity components which are scaled. A scaling unit responsive to the sub-sampler decompression unit applies different processing algorithms to the various ones of the luminance and chrominance components to scale the main luminosity component utilizing a spacial algorithm while simultaneously scaling the minor chromaticity components utilizing a perceptual algorithm. The scaled full resolution luminance and chrominance color space components are then converted into RGB color space for display purposes.
Bibliography:Application Number: US20040901647