Using image difference data to reduce data processing
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United States of America Patent
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Nov 7, 2017
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app pub date -
Sep 2, 2014
filing date -
Sep 6, 2013
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Abstract
The amount of data transmitted is reduced and processing is accelerated in a process that uses image difference data to reduce the amount of data. A host computer 1 segments a first image and a second image into corresponding rectangular cells each containing plural pixels, compares the first image and the second image and identifies corresponding cells that differ, and extracts the identified cells. The host computer 1 then combines plural extracted cells into rectangular units, and outputs image difference data based on the generated units to a printer 5.
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