Maria Grzegorek, Wojciech Mokrzycki

Algorithm of gradient detection of contours on image with autonomous choice of the ground

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Abstract

Contour detection on an image depends on a grouping of small feature primitives into ordered sets, which form edge elements (edgels), and the replacing such chain elements by a filled (with regard to some criteria) curve, fulfilling imposed conditions.

The paper describes new method and algorithm of gradient detection of contours on image - the detection with the autonomous choice of the treshchold of feature elements impotrance, on the base of the Reduction Curve of the image.

Key words: removing unimportant image data, image primitives reduction, grouping of line segments, grouping criteria.