FIELD: operations with images.
SUBSTANCE: video signal is outputted, number of scanning rows of which is doubled by integration of interpolated scanning row of input video signals of scanning rows into it, positioned above and below, accordingly adjacent to interpolated scanning row. Circuit has block for detecting direction having greatest correlation, centered in interpolation point, including vertical and slanting directions, on basis of input video signal, and block for calculation of average value of image signals in two points of selection on scanning points, positioned above and below, appropriate for detected direction. Block for detecting direction estimates, that correlation in direction with slant is greatest, and block for calculation of average value calculates average value of signals of image in two slanting points, allowing in such a way to correctly process interpolation of slanting line in moving image.
EFFECT: higher quality, higher efficiency.
2 cl, 10 dwg
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