Image analysis – Histogram processing – For setting a threshold
Patent
1990-12-17
1993-02-23
Razavi, Michael
Image analysis
Histogram processing
For setting a threshold
382 14, 382 15, 382 39, 358101, G06K 900
Patent
active
051897083
ABSTRACT:
The appearance of a product is determined to be acceptable or unacceptable by computing a discriminant function or image from a plurality of two-dimensional images of products of the kind to be inspected. A two-dimensional image of the product is then formed and processed using the discriminant image to produce an output value which can be compared to a predetermined value used in computing the discriminant image. If the output value deviates from the predetermined value by more than a predetermined amount, the product has been found to have an unacceptable appearance.
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Cox Kenneth A.
Maher Robert J.
Jackson Robert R.
Philip Morris Inc.
Razavi Michael
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