FIELD: information technologies.
SUBSTANCE: processing unit contains input implementation storage unit (1), switches (2.K), splitter (3), approximation units (3.K), evaluation storage unit (4.K), arithmetic adder (5), useful component evaluation storage unit (6), subtracter (7), storage unit (8), maximum absolute value estimator (9), subtracter (10), storage unit (11), comparator (12), threshold value unit (13), storage unit (14), random-number generator (15), related value eliminator (16), rating unit (17), random-number sample storage register (18), clock generator (19).
EFFECT: processing of black-and-white images with sudden brightness jump from white level to black level using estimate propagation method at insufficient a priori information on additive noise term statistics.
5 dwg
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