US PATENT SUBCLASS 382 / 273
.~.~ Based on peak levels

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}
273.~.~ Based on peak levels

DEFINITION

Classification: 382/273

Based on peak levels:

(under subclass 270) Subject matter wherein the threshold or quantization value of a particular image element is set according to the highest and/or lowest amplitude of some measured signal, such as the grey levels of neighboring image elements or a white or black signal produced by scanning a reference plate prior to scanning the image.