An X-ray Image Enhancement Algorithm for Dangerous Goods in Airport Security Inspection
Qiang Gao, Ruifeng Hong, Xiaoman Zhu, Xilin Liu · 2021
Aiming at the problem of color distortion in CLAHE enhanced airport security X-ray images, an X-ray image enhancement algorithm combining USM+CLAHE is proposed. First, calculate the grayscale images on the R, G, and B channels of the X-ray image and perform CLAHE enhancement respectively, and then merge the enhanced R, G, and B grayscale images. Next, perform the USM sharpening operation on the X-ray image enhanced by CLAHE, and finally merge the original image and the USM sharpened image according to the weight. The experimental results show that the USM+CLAHE algorithm can effectively enhance the security X-ray image, and at the same time can suppress the color distortion of the enhanced image.