搜索资源列表
JPEG_comprssion
- 基于DCT的JPEG图像的编码和压缩程序！可以选择对图像或矩阵进行实验，从而计算压缩比等
图像处理
- 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）
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.
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.
JPEG2000_9_7_002.pdf
- 基于实数的二进制表示法，把CDF(Cohen，Daubechies and Feauveau)9／7双正交小波基的提升系数化为二进制，采用简单的移位一加操作代替结构复杂的浮点乘法器，从而实现了JPEG2000中9／7离散小波变换的定点计算．相对于浮点计算法，移位一加操作最大的优点是计算简单，特别易于超大规模集成电路实现，因而使硬件实时处理图像信号成为可能．实验仿真结果表明：在低压缩比的情况下，用移位一加操作重构的图像，其峰值信噪比(PSNR)只比浮点法低0．10 dB，当压缩比增大时，其PSNR
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.]
ObjectiveFidelityCriteria
- 本实验要求编写一个计算压缩-解压缩图像的均方根误差、均方信噪比的程序。该程序是一个通用程序。编写程序产生图示的结果。使用上面的保真度准则程序计算可视信息的损失特性。-Prepared in this experiment, a calculation of compression- decompression of the root-mean-square error of image, mean square signal to noise ratio of the procedure. Th
EZW
- 此代码是小波零树算法的matlab实现程序，子程序较为齐全，包括最后计算压缩图像的峰值信噪比和压缩效果的源码。-This code is the wavelet zero-tree algorithm matlab implementation procedures, subroutines are more complete, including the final calculation of the peak signal to noise ratio and the compressed
PSNR
- 这个程序可以实现两幅图像信噪比的计算，尤其是对于图像压缩，可以评判压缩的质量-This process can be achieved two SNR calculation, especially for image compression, you can judge the quality of compressed
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
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.
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
source
- 1.计算256灰度级lenna图像中的相对冗余信息. 2.设计一个游程编码算法, 并编程序对一幅二值图像进行编码,计算压缩比.-1 Calculate the relative redundant information in the 256 gray-scale image of lenna. 2 Design a run-length coding algorithm, encoding, and programmed to a binary image and calculate
chengxu
- 要:基于DCT图像压缩编码技术提出了用Marlab实现离散余弦变换的图像压缩方法，该方法具有方法 简单、速度快、误差小的优点，免去了大量的矩阵计算，既保证具有较高的压缩比，又保证了较好的 图像质量。-Realization of discrete cosine transform image compression using Marlab: Based on the DCT image compression coding techniques, this method has the
Stroke-encoding
- 行程编码(RLE）,显示原始图像和经编码解码后的图像,显示压缩比,并计算均方根误差-Stroke encoding (RLE), the original image and the display image after encoding and decoding, the compression ratio of the display, and the root mean square error
Untitled2
- 1、将图像Chrysanthemum按质量等级分别为10、30、50、70、90存储成jpg文件，并分别命名为Chrysanthemum_010.jpg、Chrysanthemum_030.jpg、…… 、Chrysanthemum_090.jpg。 2、观察并说明jpg文件质量的变化情况。 3、计算压缩比，并画出压缩比随质量等级变化的曲线。 4、读取文件：Chrysanthemum_010.jpg、Chrysanthemum_030.jpg、…… 、Chrysanthemum_09
spiht
- 使用分层树集合划分的压缩方法对彩色图像压缩并计算其均方误差和峰噪比-Using a hierarchical tree set partitioning compression method for color image compression and calculate the mean square error and peak-to-noise ratio
图像压缩
- JPEG2000图像压缩算法，可计算压缩比，MSE，PSNR等参数(JPEG2000 image compression algorithm, you can calculate the compression ratio, MSE, PSNR and other parameters)