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US 2008/0166064 A1Published application
Method And Apparatus For Reducing Noise In An Image Using Wavelet Decomposition
AssigneeSeiko Epson Corporation
InventorGuoyi Fu
Life of this patent
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Abstract
A method of reducing noise in an image comprises decomposing the image to generate wavelet coefficients at different scales. The wavelet coefficients are then modified based on the energy of the wavelet coefficients at the different scales. The image is reconstructed based on the modified wavelet coefficients.
Claims27
A method of reducing noise in an image comprising:
- decomposing the image to generate wavelet coefficients at different scales;
- modifying the wavelet coefficients based on the energy of the wavelet coefficients at said different scales;
- and
- reconstructing the image based on the modified wavelet coefficients.
1 more element
An apparatus for reducing noise in an image comprising:
- memory storing said image;
- and
- processing structure decomposing the image to generate wavelet coefficients at different scales, modifying the wavelet coefficients based on the energy of the wavelet coefficients at the different scales and reconstructing the image based on the modified wavelet coefficients.
A computer readable medium embodying a computer program for reducing noise in an image, said computer program comprising:
- computer program code for decomposing the image to generate wavelet coefficients at different scales;
- computer program code for modifying the wavelet coefficients based on the energy of the wavelet coefficients at different scales;
- and
- computer program code for reconstructing the image based on the modified wavelet coefficients.
1 more element
Dependencies are inferred from the claim text.