编写直方图均衡化、线性增强及四点平滑等的C语言程序及相应的显示程序。对指定图象进行直方图均衡化，将原始图象及增强后的图象都显示于屏幕上，比较增强的效果。对指定图象进行线性增强(A2图像，灰度64到192区间扩展到0到255），将原始图象及增强后的图象都显示于屏幕上，比较增强的效果。对指定图象进行四点平滑，将原始图象及增强后的图象都显示于屏幕上，比较增强的效果。对指定图象用3×3模板（八点）进行平滑，将原始图象及增强后的图象都显示于屏幕上，比较增强的效果。对指定图象用不同的3×3加权模板进行平滑，将原始图象及增强后的图象都显示于屏幕上，比较增强的效果。-Write histogram equalization, linear enhancement and smoothing four-point C language program and the corresponding display program.To specify the image histogram equalization, the original image and the enhanced image is displayed on the screen, more enhanced effect.The specified linear image enhancement (A2 image, gray 64-192 interval extended to 0 to 255), the original image and the enhanced image is displayed on the screen, comparing the enhanced effect.The four-point specified image smoothing, the original image and the enhanced image is displayed on the screen, more enhanced effect.Performed using the specified image 3 × 3 template (eight) smoothing the original image and the enhanced image is displayed on the screen, comparing the enhanced effect.Of the specified picture be different 3 × 3 weighted smoothing template, the original image and the enhanced image is displayed on the screen, comparing the enhanced effect.