Image reading apparatus

Details Image reading apparatus Image reading apparatus

1988-06-21

1991-05-28

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 62, 358446, 250226, G06K 938, G06K 900, G01J 350

Patent

active

050201182

ABSTRACT:
There is disclosed an image reading apparatus capable of preparing unsharp mask data from an image with a simple structure. For this purpose there is employed a first line sensor with plural photoelectric converting elements, and a second line sensor with larger photoelectric converting elements of a greater length, both being arranged parallel and desired data being obtained by processing the signal from these sensors.

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W. G. Barg, "An edge-enhancing double-focus carmera for image processing", Philips Tech., 1977, Rev. 37, No. 7, pp. 180-187.

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