实现BMP图像黑白图像的打开及图像灰度值的线性变换y=ax+b，线性变换的a,b由对话框输入-BMP implementation of the open image black and white images and gray scale image of the linear transformation y = ax+ b, linear transformation of a, b from the dialog box enter

本人上传的为线性拉东变换方法，它能够提取面波的频散曲线-I uploaded is of linear radon transform method， it can extract of surface wave dispersion curves