Image processing apparatus

An image processing device and image processing technology, which are used in image data processing, image coding, image communication, etc.

Inactive Publication Date: 2005-09-28
KK TOSHIBA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, no device has yet integrated these technologies to provide high performance

Method used

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Embodiment Construction

[0050] Hereinafter, embodiments of the present invention will be explained in detail with reference to the drawings.

[0051] Figure 1 shows an embodiment of the invention. Reference numeral 1001 denotes a color scanner. A color image signal 1011 read out by the color scanner 1001 is input to a first compression section 1002 and an automatic color selector (ACS) 1003 . The first compressed data 1012 output by the first compression section 1002 is input to the page memory 1004 . The ACS 1003 determines whether the input image is color or monochrome, and then outputs a determination signal 1013 .

[0052] The image data (compressed data 1012 or 1014 ) read out from the page memory 1004 can be input to the decoding section 1005 . The decoded signal 1015 decoded by the decoding section 1005 is input to the RGB / CMYK conversion section 1006, thereby converting the R (red), G (green) and B (blue) signals into C (cyan), M (magenta), Y (yellow) ) and K (black) signals. C, M, Y, an...

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PUM

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Abstract

An image processing apparatus according to an embodiment of the present invention has a first compressing section which compresses each block of an image into first compressed data, a first code converting section which converts the first compressed data into second compressed data, a second code converting section which converts the second compressed data into third compressed data, and a decoding section which decodes the third compressed data. In this case, each block of the second compressed data has a code length equal to or different from that of each block of the first compressed data. Each block of the third compressed data has a code length equal to that of each block of the first compressed data.

Description

technical field [0001] The present invention relates to an image processing apparatus effectively used in, for example, a digital copying machine. Background technique [0002] Some digital copiers have a single-page copy function, using which the user manually places the document to be copied page by page in the scanning area of ​​the copier and then copies the document, and also has a continuous copy function to automatically classify a large number of documents and then continuously copy them into many sheets or continuously make many copies even if there is only one document. Other digital copiers are equipped with an editing function for performing editing (image composition, image reduction, etc.) using temporarily saved data. [0003] When performing a single-page copying function, a continuous copying function, or an editing function, it is necessary to effectively utilize image compression processing, decoding processing, and processing of accumulating data in a me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T9/00H04N1/40H04N1/41H04N1/413H04N1/46H04N19/00
CPCH04N1/642H04N21/242H04N7/26941H04N21/4302H04N19/00472H04N19/40
Inventor 田畑淳菅野浩树
Owner KK TOSHIBA
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