Self-adapting method and device for the inlaying of color video images
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United States of America Patent
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Mar 16, 1993
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app pub date -
Jun 6, 1991
filing date -
Oct 6, 1989
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Abstract
The method for the inlaying of color video images consists on the one hand in generating a switching signal, or dividing key, applying a gain on the image points belonging to the contour of the subject to be inlaid, in proportion to the distance value (DIST) between the color of the point and that of the back-ground, and on the other hand in carrying out a mixing of the source image and a new background image which is a function of the value of the dividing key signal at the point in question and such that the values of the source signal and of the new background signal are fixed at constants over the width of the contour.
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