FIELD: optical computer engineering. SUBSTANCE: processed image is shown on screen of monochrome cathode-ray tube 1. Screen is placed in input front of correlation meter. Image is received by photodetector 6 through channel of color filter 2, stop aperture 3, holographic filter 4 and projecting lens 5. Holographic filter is made as matrix of Fourier-type holograms of reference image. Number of images processed by correlation meter is increased due to invented implementation of holographic filter. This results in increased precision of correlation meter. EFFECT: increased quality of image processing. 1 dwg
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