X-ray safety inspection image enhancing method based on region self-adaptive processing
A security inspection and image enhancement technology, applied in image enhancement, image data processing, instruments, etc., can solve the problem of difficult to achieve image penetration, and achieve the effect of clear image visual effect, fast processing speed, and simple algorithm.
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[0031] The present invention will be described in detail below with reference to the drawings and embodiments. Such as figure 1 As shown,
[0032] Reference figure 1 The flow chart of the X-ray security inspection image enhancement method based on area adaptive processing of the present invention. After obtaining the inspected package image f(x, y) collected by the X-ray security inspection equipment, the method of the present invention mainly includes the following Steps:
[0033] 1) Step S1, perform piecewise nonlinear gray scale transformation on image f(x, y) to obtain gray scale transformation image f tran (x,y);
[0034] 2) Step S2: Perform mean filtering of different scale templates on the image f(x, y) to obtain a filtered image f mean (x,y);
[0035] 3) Step S3, use image f(x,y) and image f mean (x,y), through the following calculation formula, get the high-frequency information image f high (x,y):
[0036] f high (x,y)=f(x,y)-f mean (x,y)
[0037] 4) Step S4, determine...
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