Noise reduction method, noise reducing apparatus, medium,...

Details Noise reduction method, noise reducing apparatus, medium,... Noise reduction method, noise reducing apparatus, medium,...

2006-04-18

2006-04-18

Couso, Von J. (Department: 2625)

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C382S250000

Reexamination Certificate

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07031546

ABSTRACT:
A noise reduction apparatus in accordance with the present invention is configured to reduce mosquito noise while retaining edges by calculating the maximum value Y of the difference values of adjacent pixels in an area of M×N around a notice pixel by using a difference value calculator and a maximum value calculator, by controlling a pixel replacement device depending on Y and the difference value X from the notice pixel in the area of J×K narrower than the area of M×N, and by carrying out more intense smoothing depending on the magnitude of X with respect to Y, that is, when X is smaller than Y.

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Japanese search report for PCT/JP01/07817 dated Dec. 25, 2001.
English translation of Form PCT/ISA/210.

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