Facsimile and static presentation processing – Natural color facsimile – Specific image-processing circuitry
Patent
1992-08-28
1996-07-16
Rogers, Scott A.
Facsimile and static presentation processing
Natural color facsimile
Specific image-processing circuitry
358539, 358435, 3582611, H04N 164, H04N 1327, H04N 1333
Patent
active
055372317
ABSTRACT:
An image transmission apparatus includes a color codec section for performing color image coding of a color image, a run-length codec section for performing run-length coding of a monochrome image, and a switching unit for arbitrarily switching the codec sections and to perform coding in units of pages in one communication cycle depending on whether each page is a color image or a monochrome image. Whether each page is constituted by a color image or a monochrome image is set in advance, and corresponding information is stored in a memory. Coding is performed by a coding scheme set for each page, and the coded data is transmitted. Alternatively, coded data obtained by both the codec sections and are stored in a hard disk, and the data coded by a coding scheme which an apparatus at the other end of a communication line can handle is read out and transmitted.
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C'T Magazin Fur Computer Technik, No. 5, May 1991, pp. 208-214, Glass, "Ein Blick in PC-gestutze und Stand-alone Faxgerate".
Hisada Katsutoshi
Tadokoro Yoshihisa
Canon Kabushiki Kaisha
Rogers Scott A.
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