Image processing device, image processing method, program,...

Details Image processing device, image processing method, program,... Image processing device, image processing method, program,...

2007-04-16

2011-11-22

Harold, Jefferey (Department: 2422)

Television

Image signal processing circuitry specific to television

Noise or undesired signal reduction

C348S701000, C348S910000, C348S606000, C348S627000, C358S003030, C382S275000

Reexamination Certificate

active

08063994

ABSTRACT:
Flicker occurs in a flicker-noticeable area consisting of pixels with no pixel value variations. An image processing device (100) includes a variance calculation unit (101) that obtains a variance of an area consisting of a target pixel and neighboring pixels included in a first frame, and changes, according to the variance, the rate at which an error generated at the target pixel through tone level restriction is distributed within the frame and between frames. The image processing device (100) includes an error diffusion unit (113) that distributes the error generated at the target pixel to the neighboring pixels included in the first frame based on an intra-frame error diffusion rate and an intra-frame error distribution weight, and distributes the error generated at the target pixel to a target pixel and neighboring pixels included in the second frame based on an inter-frame error diffusion rate and an inter-frame error distribution weight.

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International Search Report issued Jul. 3, 2007 in the International (PCT) Application No. PCT/JP2007/058279.

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