Abstract: A digital image processing system is disclosed that uses a camera, a monitor and a computer which models the inhibition, energy normalization, and noise suppression processes in a generic retina. The retinal computer program enhances edges, eliminates brightness variations in a scene for a given object and background, and suppresses noise to the extent that objects were extracted from noise. The model uses many parameters which can be extensively adjusted in an attempt to achieve the optimum image.
Type:
Grant
Filed:
December 9, 1988
Date of Patent:
July 16, 1991
Assignee:
The United States of America as represented by the Secretary of the Air Force
Abstract: A circuit for processing a maximum value conversion and a minimum value conversion of a digital image data to extract the feature of the image. A range N.times.N of the image data is processed by a simple circuit construction which comprises a horizontal row maximum value selection circuit for selecting the maximum value along N data and N numbers of maximum value selection circuits for comparing N vertical column data with the output data of the horizontal row maximum value selection circuit.
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