IMAGE PROCESSING DEVICE, IMAGE TRANSMISSION DEVICE, METHOD, PROGRAM, AND DISPLAY DEVICE

WIPO Patent Application WO/2007/063730

A1

Provided are an image processing device, an image transmission device, method, program, and display device appropriate for performing decrease of the number of bit planes while significantly suppressing the particle feeling in the image region of a gentle gradation or in a solid color image region and then increase of the number. A second image processing unit (5) includes: a bit addition unit (207) for subjecting compressed data read from a memory (2) to a bit addition process based on a two-dimensional dither matrix so as to obtain decompressed data; an LPF processing threshold value generation unit (209) for obtaining a threshold value from the decompressed data; and an LPF processing unit (210) for acquiring a difference between the decompressed data of the target pixel and pixel around it. When the difference value is within a range of the threshold value, the weighted mean processing result of the decompressed data on the target pixel and the decompressed data on peripheral pixel is made to be output image data. When the difference value exceeds the threshold value, decompressed data on an arbitrary pixel is made to be output image data.

JPS59161183	ENCODING SYSTEM OF PICTURE HAVING GRADATION OF MULTILEVEL
JP2669119	Description: Motion Compensation Prediction Coding Device and Decoding Device
JP2009232460	IMAGE PROCESSOR

MIYASAKA DAIGO (JP)

PCT/JP2006/323108

June 07, 2007

November 20, 2006

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NEC CORP (JP)
MIYASAKA DAIGO (JP)

H04N1/41; G06T5/00; G06T5/20; H03M7/30; H04N1/40; H04N1/405

JP2003162272A	2003-06-06
JPH0537782A	1993-02-12
JP2001128006A	2001-05-11

MARUYAMA, Takao (38-23Higashi-Ikebukuro 2-chome, Toshima-k, Tokyo 13, JP)

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