目录 1.图像反转........................................................................................................................................ 2 2.灰度线性变换 ................................................................................................................................ 2 3.非线性变换.................................................................................................................................... 4 4.直方图均衡化 ................................................................................................................................ 5 5. 线性平滑滤波器 .......................................................................................................................... 6 6.中值滤波器.................................................................................................................................... 7 7.用Sobel 算子和拉普拉斯对图像锐化： ..................................................................................... 8 8.梯度算子检测边缘 ........................................................................................................................ 9 9.LOG 算子检测边缘 ...................................................................................................................... 11 10.Canny算子检测边 缘 ............................................................................................................... 12 11.边界跟踪 （bwtraceboundary函数） .................................................................................... 13 12.Hough 变换 ................................................................................................................................ 14 13.直方图阈值法............................................................................................................................ 16 14. 自动阈值法：Otsu 法 ..........................................................................................
