The present invention relates to a circular masking-out area rate determination-based
adhesive particle image concave point segmentation method. The method comprises the following steps of 1) carrying out the image pre-
processing to obtain a
binary image of a particle image; 2) carrying out the concave point rough detection to obtain an
angular point image of the particle image; 3) carrying out the concave point accurate detection, and utilizing an area rate method to obtain all concave points capable of being used for the particle segmentation in a regional contour; 4) carrying out the concave point
pairing, wherein the selected concave point pairs are used as the segmentation points of an
adhesive particle image; 5) constructing a segmentation line of the particles, obtaining the contour coordinates of individual particles, and combining the coordinates of two segmentation points to obtain the complete particle contour. According to the present invention, by combining an
angular point detection method and a method based on concave point analysis, an
operand problem brought by purely utilizing the concave point search based on area is avoided; by setting few parameters, a lot of sample training is not needed; at the same time, the segmentation paths can be replanned, thereby being able to adapt to the different shape and
size change of the images.