Method is based on the definition of entropy curves edge of the object

摘要

1. A method for determining the curves of the edges of the object on the recorded image multispectral camera, comprising the following method steps: a) converting a recorded image to a digital multispectral image, b) on the multispectral image to each pixel is assigned a color tone from the color space HSV, wherein the color tone corresponds H color corner at a predetermined chromatic circle, c) the classification of an individual pixel as an object pixel and a background pixel, wherein the object as n Xela set those pixels whose hue lies within a predetermined range of values, i) determining the entropy of the profile (5) displaceable by means of analysis windows, wherein for each pixel is calculated mixing entropy S from the object pixel and the background pixel of this formulepri n - the number of object pixels within the analysis window, n- number of background pixels within the analysis window, ak defines a proportionality coefficient, wherein the derivation is carried out and examination extrema particular profile entropii.2. A method according to claim 1, characterized in that in step d) the entropy is calculated in the offset analysis window pre-defined length and width, wherein the analysis window is created by displaceable in step c) the image pixel, and wherein the calculated entropy S offset assigned to the relevant pixel window centroid analysis and that in the next step d1) window analysis displace at least one pixel in the length and / or width, and that at the next step r2) step d) is repeated as long as each pixel is not P