US PATENT SUBCLASS 382 / 271
.~.~ Based on the results of a count

Current as of: June, 1999
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382 /   HD   IMAGE ANALYSIS

254  DF  IMAGE ENHANCEMENT OR RESTORATION {7}
270  DF  .~ Variable threshold, gain, or slice level {3}
271.~.~ Based on the results of a count

DEFINITION

Classification: 382/271

Based on the results of a count:

(under subclass 270) Subject matter wherein the threshold or quantization value derived for a particular element in the image depends upon the relative frequency of occurrence of each brightness level in a region around the image element or the number of "black" image elements at a particular location over a number of images of the same object.

SEE OR SEARCH THIS CLASS, SUBCLASS:

172, for setting a threshold using a histogram.