Color image reading apparatus having correction means to correct for relative variations among image signals
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United States of America Patent
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Nov 1, 1994
Grant Date -
N/A
app pub date -
Nov 9, 1992
filing date -
Nov 12, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A color image reading apparatus is described which has a blazed diffraction grating that diffracts light from an original document, a CCD that converts the diffracted light into electrical image signals, and a filter circuit that performs a smoothing process or an edge emphasising process on the image signals from CCD.
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