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JPEGcompression.rar
- 1.首先通过DCT变换去除数据冗余; 2.使用量化表对DCT系数进行量化; 3.对量化后的系数进行Huffman编码。 具体源程序由主程序及两个子程序(DCT量化、Huffman编码)组成: ,1. First of all, through the DCT transform to remove data redundancy 2. The use of quantization table of quantization DCT coefficients 3. Of quanti
MATLAB_code_of_image_processing
- 该gui函数基本上包括图像处理里面的最基本处理,相当于一个小型photoshop。比如读取文件,几何变换中的垂直镜像,平移,旋转,缩放;正交变换的DFT,FFT,DCT,DST,DHT,DWashT;灰度处理中的反色,直方图均衡,全局线性变换,分段线性变换,指数非线性变换,对数非线性变换;图像增强里面的加噪声,平滑,锐化,伪彩色增强;图像分割里面的灰度阈值法,Robert,Laplace,sobel,prewitt,canny算子边缘检测法;图像恢复里面的直接逆滤波,维纳滤波;图像编码里面的霍夫
Image-compression
- 1. 理解图像压缩的相关概念及图像压缩的主要原则和目的; 2. 掌握霍夫曼编码 3. 掌握几种常见的图像压缩编码方法 4. 利用 MATLAB 程序进行图像压缩-1. Understand the related concepts of image compression and image compression of the main principles and purposes 2. Grasp the Huffman coding 3. The control o
pixel_coder
- 霍夫曼编码;量化到8位字节每个像素编码及解码(Write a MATLAB function [zipped, info] = pixel_coder(X) that takes an image X and using the Huffman coder above applied in the pixel domain quantized to 8 bits per pixel returns the coded sequence zipped along with the header
HuffmanCoding
- 文本信号的信源编码,利用MATLAB编程实现Huffman编码。(The source code of the text signal is coded by MATLAB programming.)