Enhancing video sharpness and contrast by luminance and chrominance transient improvement
First Claim
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1. An apparatus, comprising:
- a processor; and
a media processing node arranged to enhance sharpness of an input image using said processor, said media processing node comprising;
a receiver to receive the input image;
a wavelet decomposition module to perform multiple levels of wavelet decomposition of said input image by performing wavelet analysis for edge detection using a wavelet transform, said wavelet analysis comprising a windowing technique with variable-sized time regions; and
an edge enhancement module to perform horizontal, vertical, and diagonal enhancement on high frequency components of wavelet decomposition output from said wavelet decomposition module.
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Abstract
An apparatus, system, method, and article for enhancing video sharpness are described. The apparatus may include a media processing node to enhance sharpness of an input image. The media processing node may include a wavelet decomposition module to perform wavelet decomposition of the input image to detect and modify edge information. Other embodiments are described and claimed.
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Citations
25 Claims
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1. An apparatus, comprising:
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a processor; and a media processing node arranged to enhance sharpness of an input image using said processor, said media processing node comprising; a receiver to receive the input image; a wavelet decomposition module to perform multiple levels of wavelet decomposition of said input image by performing wavelet analysis for edge detection using a wavelet transform, said wavelet analysis comprising a windowing technique with variable-sized time regions; and an edge enhancement module to perform horizontal, vertical, and diagonal enhancement on high frequency components of wavelet decomposition output from said wavelet decomposition module. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system, comprising:
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a source node; a processor; and a media processing node to couple to said source node and arranged to enhance sharpness of an input image using said processor, said media processing node comprising; a receiver to receive an input image; a wavelet decomposition module to perform multiple levels of wavelet decomposition of said input image, by performing wavelet analysis for edge detection using a wavelet transform, said wavelet analysis comprising a windowing technique with variable-sized time regions; and an edge enhancement module to perform horizontal, vertical, and diagonal enhancement on high frequency components of wavelet decomposition output from said wavelet decomposition module. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method, comprising:
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receiving an input image in a computer comprising a processor; performing multiple levels of wavelet decomposition of said input image with said processor by performing wavelet analysis for edge detection using a wavelet transform, said wavelet analysis comprising a windowing technique with variable-sized time regions; and performing horizontal, vertical, and diagonal enhancement on high frequency components of wavelet decomposition output from said wavelet decomposition module. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. An article comprising a computer-readable storage medium containing instructions that when executed enable a computer to:
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receive an input image; perform multiple levels of wavelet decomposition of said input image by performing wavelet analysis for edge detection using a wavelet transform, said wavelet analysis comprising a windowing technique with variable-sized time regions; and performing horizontal, vertical, and diagonal enhancement on high frequency components of wavelet decomposition output from said wavelet decomposition module. - View Dependent Claims (23, 24, 25)
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Specification