Verification apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 31, 1987
Grant Date -
N/A
app pub date -
May 6, 1986
filing date -
May 7, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A verification apparatus for verifying a negative image on film and a positive image on photographic paper against each other. Respective transmission densities of a plurality of picture elements of the film image and respective reflection densities of a plurality of picture elements of the photographic paper image are detected, and comparison is made between the transmission density of each of the picture elements of the film image and the reflection density of the corresponding picture element of the photographic paper image, thereby making judgement as to whether or not the photographic paper image and the film image correspond to each other.
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Cited Art Landscape
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