The invention relates to a tunnel surface two-dimensional
laser image enhancement processing method. The method comprises the following steps of S1, collecting a to-be-detected tunnel surface two-dimensional
laser image; S2, determining an
exposure elimination algorithm threshold value according to the pixel value characteristics of the two-dimensional
laser image on the surface of the tunnel to be detected; S3, performing
histogram equalization processing on the two-dimensional laser image of the surface of the tunnel to be measured to obtain an equalized two-dimensional laser image; S4, enhancing the equalized two-dimensional laser image target features according to a Laplace enhancement
algorithm, eliminating image noises through
Gaussian filtering, and acquiring a processed two-dimensional laser image; S5, recognizing
image splicing seam position information according to the processed two-dimensional laser image; S6, according to the
image splicing seam position information, adopting a gray value
processing algorithm to eliminate a splicing seam, and acquiring an enhanced two-dimensional laser image. According to the invention, the coordination of the high pixel domain and thelow pixel of the image can be effectively improved, and the detail
information effect of the tunnel image is enhanced.