本实例是关于图像的增强算法，具体内容包括图像的灰度修正，图像的平滑，中值滤波，图像的锐化，伪彩色和假彩色增强。-This example is about the image enhancement algorithm, the specific content, including images of gray-level correction, image smoothing, median filtering, image sharpening, pseudo-color and fals