Image accurate processing method and system for chemical fiber paper tube appearance detection
A chemical fiber paper tube, appearance inspection technology, applied in the direction of optical testing flaws/defects, can solve the problems of large amount of calculation, sensitive to geometric distortion, low accuracy, etc., achieve high image processing accuracy, small amount of calculation, and solve geometric distortion. Effect
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[0057] like figure 1 As shown, in the method of the present invention, the auxiliary mark on the auxiliary mark consists of m grids in the vertical direction, wherein each grid has two representation methods of "black" and "white", and the corresponding binary values are "1" and "0". The binary value corresponding to the auxiliary flag is called the coded value of the auxiliary flag.
[0058] like figure 2 shown, the positions of the different regions of its cylinder can be determined. Let the diameter of the end face of the paper tube 20 be D, the perimeter be L, there is L=D*π; let the width of the auxiliary mark of the auxiliary mark 50 be w, n is the number of auxiliary marks, let w*n=L=D *pi. The n auxiliary marks correspond to the circumference of the end face of the paper tube 20, that is, the circumference of the end face is evenly divided into n parts, and each auxiliary mark corresponds to one of them, and also corresponds to the corresponding position of the ...
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