数字图像处理系统设计与实现

Design and Implementation of Digital Image Processing System

针对数字图像处理的需求,开发设计了基于MATLAB GUI的数字图像处理系统。系统模块中包含对文件进行编辑,包含对图像大小调整,裁剪,灰度化处理,以及显示图像的边界图,图像进行类型转换,颜色空间转换。对数字图像处理的设计主界面中一共包含以下几个实验项目,图像的变换、增强、分割、其他常用处理。图像的傅里叶变换,离散余弦变换;空间域增强、频率域增强;阈值分割、梯度分割;对图像的亮度调节,对比度调节,裁剪截取,及显示图片的底片效果。该系统主要实现了对图像的以上处理,最后通过实例来展示处理效果。测试结果表明,该系统正常实现了所需要的功能,达到了数字图像处理的目的。

In response to the needs of digital image processing,to design a digital image processing system,which is based on MAT⁃LAB GUI.The system module includes editing of files,including image size adjustment,cropping,gray-scale processing,and the boundary map of the displayed image,image type conversion,and color space conversion.The main interface of digital image pro⁃cessing design includes the following experimental items,image transformation,image enhancement,image segmentation,and oth⁃er common processing.Perform Fourier transform and Discrete Cosine Transform on the image;spatial domain enhancement pro⁃cessing,frequency domain enhancement processing;threshold segmentation,gradient segmentation;brightness adjustment,con⁃trast adjustment,cropping and interception of the image,and the effect of displaying the negatives of the picture.The system mainly realizes the above processing of the image,and finally shows the processing effect through examples.The test results show that the functions required by the system at the normal time,and achieved the expected treatment effect.