Apparatus for realtime detection of digitalized image defects an

Details Apparatus for realtime detection of digitalized image defects an Apparatus for realtime detection of digitalized image defects an

1993-05-14

1994-12-13

Mancuso, Joseph

Image analysis

Histogram processing

For setting a threshold

382 44, G06K 940

Patent

active

053735692

ABSTRACT:
Apparatus for the detection and correction of digitized image defects comprising a plurality of registers for storing a plurality of bits representative of a portion of digitized image comprising a central pixel and pixels surrounding the central one, means for reading out from said registers, through a sequence of reading operations, the level of the bits representative of said central pixel and of the pixels in the same row and column of said central pixel with a first read operation and the level of the bits representative of rows and columns of pixels adjacent to the central pixel and more and more far therefrom at each subsequent read operation, four sequencers receiving said bit levels and respectively analyzing a sector of the image portion located left, right, above and below the central pixel, the sequencers providing signals as result of such analysis to a decoder which outputs correction codes dependent on such analysis to a control unit of a visualization unit.

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