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基于小波零树的图像压缩方法
- 基于小波零树的图像压缩方法，采用最流行的ezw方法，将图像压缩，特点，压缩比高，质量好！-The method of image compression based on zero-tree adopts the most popular method -ezw.It can reach the high compression rate.And the compression effect is very good!
用VB6开发的一款图片批量压缩、格式转换工具
- 用VB6开发的一款图片批量压缩、格式转换工具，可将BMP、TIF、PNG、GIF、JPG等格式压缩并转换成PNG、GIF、JPG格式。支持按高等比缩放、按宽等比缩放、自定义尺寸等比缩放等模式，缩放后图像不会变形(等比嘛)。采用GDI+技术，是VB开发人员学习熟悉GDI+的绝佳例子。,VB6 development with a picture-volume compression, format conversion tools can be BMP, TIF, PNG, GIF, JPG fo
wavelets
- 基于小波变换的图像压缩代码，包括压缩比、运行时间和计算复原图像的峰值信噪比-Image compression based on wavelet transform code, including compression ratio, operation time and recovery images of the peak signal to noise ratio calculation
Huffman
- MatLab实现对灰度图像的哈夫曼编码。 给出每个灰度级的编码。 并计算压缩比。-MatLab implementation of Huffman coding of gray image. Each gray-scale coding is given. And calculate the compression ratio.
txt
- 我们知道，图像压缩就是要寻找高压缩比、并使压缩后的图像有合适的信噪比的方法，对压缩后的图像还要能实现低失真度地恢复图像。压缩性能的评价标准之一是图像能量损失和零系数成分值。能量损失越小，零系数成分值越大，图像压缩的性能就越高。 -We know that image compression is to find a high compression ratio, and the compressed image signal to noise ratio suitable metho
MyDwt2D
- 对图像进行二维离散小波变换, 变换级数大于等于3级,然后统计系数中0的个数（百分比表示），并进行重构, 最后计算重构图像的峰值信噪比(PSNR). 里面还附上了我写的实验报告，对大家理解Mallat算法和图像压缩很有帮助-Image two-dimensional discrete wavelet transform, transform series greater than or equal to 3, and then statistics of the number of c
DCTchange
- DCT变换程序，将一组给定的8*8图像块经过DCT变换为另一个8*8矩阵，并计算输出压缩比。-DCT transform process, a given set of 8* 8 image block after DCT transform for another 8* 8 matrix, and calculate the output compression ratio.
DSP_JPEG2000_001.pdf
- 本文介绍了JPEG2000的静态图像压缩技术在TI TMS320DM642 DSP上的实现过程；对压缩技术核心小波算法结构进行改进，对硬件特点的程序结构、具体代码及总线读写等方面的改进作了详细描述．改进后的软件系统，对于1 024×768像素大小的图像、数据存储空间仅需6 KB，使得在资源有限的DSP芯片上能够运行JPEG2000图像压缩技术；编码速度相对于未改进的提高了l2～ 2O倍，可迭到3帧／s；压缩比为O．5 bit／p时，峰值信噪比可达到3O．-This paper introduce
image_processing
- 包含多种图像处理算法，可显示图像直方图，进行图像压缩计算压缩比，对图像进行锐化（拉普拉斯算子，索伯算子等）-Contains a variety of image processing algorithms, can display the image histogram for image compression calculation of compression ratio, image sharpening [Laplacian, Sober algorithm, etc.]
Huffman
- 利用霍夫曼编码对图像的冗余度进行压缩，以利于传输。采用霍夫曼编码来得到比较好的压缩比。-Use Huffman code redundancy of images compressed in order to facilitate transmission. Huffman code used to get relatively good compression ratio.
contourlet-CP-RLC
- 基于contourlet的图像压缩编码，其中包括计算PSNR值，压缩比和运行时间-Contourlet-based image compression coding, including the calculation of PSNR values, compression ratio and run-time
psnr
- 彩色图像psnr值计算，图像压缩编码后的峰值信噪比-Color image psnr values, image compression encoded PSNR
compression
- 主要用于图像经小波变换压缩图像，并计算压缩后的图像压缩性能即压缩比和信噪比-Mainly used for image compression by wavelet transform image, and calculate the compressed image compression performance that the compression ratio and signal to noise ratio
jingdianEZW
- 高光谱图像压缩中的ezw算法，实现了很好的压缩比-Hyperspectral image compression ezw algorithm to achieve a good compression ratio
12
- 本文所研究的二值图像游程编码数据压缩，就是一种具有高压缩比的无损数据压缩技术，它是应用游程编码的原理对二值图像进行数据压缩的编码技术，其编码非常简单，编码和解码速度快，因此其应用范围广泛。-This paper studied binary image run-length encoding data compression, is a high compression ratio of lossless data compression technology, which is the app
RLE
- 灰度图像的二值化，实现图像的RLE编解码，并计算图像的压缩比。-Gray image binarization, the RLE encoding and decoding of image and calculate the compression ratio.
Experiment4
- 对图像进行Huffman编码并计算其压缩比-Huffman coding of images and calculate the compression ratio
JPEG2000
- 实现了单色图像的JPEG2000编码图像和解码图像！计算其压缩比和误差，观察源图像和重构图像之间的差别！-JPEG2000 images to achieve a monochrome image coding and decoding image! Calculate the compression ratio and error, observation of the source image and the difference between the reconstructed imag
DCT-MATLAB
- 利用DCT变换对灰度图像进行压缩，求出压缩比；对比不同压缩比的图像。-DCT transform using grayscale image compression, the compression ratio obtained compare different compression ratio of the image.
DCT变换图像压缩
- 基于DCT变换的图像压缩处理，压缩比可自己调整(Image compression processing based on DCT transform)