Image correction by combining results of multiple linear filters, where extreme linear filter values are eliminated

摘要

A camera is in the form of a sensor ( 3 ) composed of light-sensitive elements arranged in a matrix, and at least a first filtering device ( 10 ) for processing the signals issuing from said sensitive elements. The filtering device ( 10 ) includes a plurality of linear filters (Fmd 1 , Fmd 2 , Fdg 1 , . . . Fdg 6 ) corresponding to medians and diagonals with respect to the sensor for supplying a plurality of filtering indications. An elimination device ( 14 ) eliminates the extreme results of these indications and an estimation device ( 16 ) supplyies a valid indication from the non-eliminated indications. Thus, the faulty sensitive elements of the sensor ( 3 ) do not degrade the images excessively.