Search - huffman coding using matlab

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[Special Effects] bianmashiyan DL : 0: 数字图像处理实验根据原图像的直方图，发现背景和目标的分割值大约在130左右，并将灰度图像转为二值图像，分割效果比较理想。图像处理实验（六）图像压缩与编码实验目的：学习JPEG压缩编码实验内容：一．实现基本JPEG的压缩和编码分三个步骤： 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。-digital image processing experiments based on the original image histogram, found background and objectives of the divided about the value of around 130 and two gray-scale image to image, Segmentation more satisfactory results. Image processing experiments (6) Image Compression and Coding of the experiment : Learning JPEG compression coding experiment : one. Basically JPEG compression and coding in three steps : 1. First through DCT remove data redundancy; 2. Using quantitative table right DCT coefficient quantization; 3. Right quantized coefficients of Huffman coding.
Date : 2025-12-18 Size : 4kb User : qq
[Special Effects] huffman_code DL : 0: 用matlab实现的霍夫曼编码的图像压缩，主要就是依据霍夫曼编码的原理实现的图形图像处理。-Using the Huffman code matlab realize the image compression, Huffman coding is mainly based on the principle realize graphics image processing.
Date : 2025-12-18 Size : 7kb User : 徐斌
[Special Effects] jpeg DL : 1: jpeg压缩的matlab程序，包括分块，量化，霍夫曼编码，其中量化和霍夫曼编码用查表实现，提高速度。-jpeg compression matlab procedures, including block, quantization, Huffman coding, in which quantization and Huffman coding using look-up table to achieve, improve the speed.
Date : 2025-12-18 Size : 1.07mb User : ronghy
[Special Effects] wenben DL : 0: matlab环境下利用huffman编码实现图像无损压缩和文本的压缩-matlab environment implementation using huffman coding image lossless compression and text compression
Date : 2025-12-18 Size : 15kb User : jj
[Special Effects] huffmanencode DL : 0: 给出了两种利用matlab对图像进行霍夫曼编码的方法，经过仿真，效果很好！-Are given two pairs of images using matlab Huffman coding method, through simulation, good results!
Date : 2025-12-18 Size : 1kb User : tom
[Special Effects] huffman DL : 0: 用MATLAB进行编程实现对256*256图像进行的哈夫曼编码-Carried out using MATLAB image Huffman coding
Date : 2025-12-18 Size : 1kb User : 张凤
[Special Effects] DCT_JPEG DL : 0: 给予matlab的JPEG压缩程序，包含原始压缩图片，程序对灰度bmp图片进行JEPG编码，压缩成以0101形式的编码。JPEG编码先把图象色彩RBG变成亮度Y和色度Cr、Cb，它利用人的视觉对色度不敏感的特点，减少一部分色度数据，以达到压缩。 JPEG采取多种编码方式，包含有行程编码(Run Length Coding)和哈夫曼(Huffman)编码，有很高的压缩比。在编码前，先对数据进行分块，离散余弦变换（DCT）及量化，保留能量大的低频信号，丢弃高频信号以达到压缩。-Given to the JPEG compression matlab program, contains the original compressed image, the program of the grayscale bmp picture JEPG encoded, compressed into a 0101 form of encoding. RBG color coded JPEG image into a first luminance Y and chrominance Cr, Cb, which uses the human visual characteristics is not sensitive to the color, reduce the number of color data to achieve compression. Take a variety of JPEG encoding, includes length coding (Run Length Coding) and Huffman (Huffman) coding, a high compression ratio. In the code before the data block, discrete cosine transform (DCT) and quantization, to retain a large low-frequency signal energy, discarding high-frequency signals in order to achieve compression.
Date : 2025-12-18 Size : 171kb User :
[Special Effects] image-coding DL : 0: 用matlab实现算数编码、哈弗曼编码以及LZW编码（能够区分大小写和数字进行编码）含测试文本和结果-Using matlab realize arithmetic coding, Huffman coding and LZW coding (case-sensitive and numbers can be encoded) containing test text and results
Date : 2025-12-18 Size : 6kb User : 文闯
[Special Effects] Image-compression DL : 0: 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 of several common image compression coding method 4. Using MATLAB for image compression
Date : 2025-12-18 Size : 4.88mb User : 薛菲