Image processing apparatus, printer and control method of...

Details Image processing apparatus, printer and control method of... Image processing apparatus, printer and control method of...

2005-09-26

2009-08-04

Tran, Phuoc (Department: 2624)

Image analysis

Image compression or coding

Including details of decompression

C382S250000, C382S296000

Reexamination Certificate

active

07570822

ABSTRACT:
When data of one block is subjected to Huffman decoding (S100to S120), inverse quantization processing is executed on the decoded data (S130), and when a present block is a starting point block, starting point restoring information (file pointer, decoding intermediate information and DC component) for restoring the image file with the block as a starting point is stored in a predetermined area of a data buffer (S140, S150). Then, inverse DCT calculation processing is carried out, color conversion processing is executed (S160, S170) and the histogram of RGB values is accumulated and stored in a predetermined area of the data buffer (S180).

REFERENCES:
patent: 6175653 (2001-01-01), de Queiroz
patent: 6208429 (2001-03-01), Anderson
patent: 2001-086318 (2001-03-01), None

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