Description: 基于Matlab的典型图像增强算法的源码
程序代码说明
P0301：数字图像矩阵数据的显示及其傅立叶变换
P0302：二维离散余弦变换的图像压缩
P0303：采用灰度变换的方法增强图像的对比度
P0304：直方图均匀化
P0305：模拟图像受高斯白噪声和椒盐噪声的影响
P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
P0308：图像的自适应魏纳滤波
P0309：运用5种不同的梯度增强法进行图像锐化
P0310：图像的高通滤波和掩模处理
P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理
P0312：利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理-They are typical Matlab-based image enhancement algorithm.
Procedure Code Description
P0301: digital image data display matrix and its Fourier transform
P0302: Two-dimensional discrete cosine transform image compression
P0303: the use of gray-scale transformation method of contrast-enhanced images
P0304: Histogram of homogenization
P0305: analog image by Gaussian white noise and salt and pepper noise
P0306: A two-dimensional median filter function by medfilt2 of salt and pepper noise image filtering
P0307: the use of MATLAB s function affected by noise interference filter2 images mean filter
P0308: Image Adaptive Weiner Filter
P0309: the use of five kinds of different gradient enhanced image sharpening method
P0310: Image of high-pass filtering and mask treatment
P0311: the use of Butterworth (Butterworth) low pass filter on the image noise by smoothing treatment
P0312: the use of Butterworth (Butterworth) high-pass filter for sharpening Platform: |
Size: 21504 |
Author:panghuanzhi |
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Description: The following implementation steps have been made for the devised algorithm, which is based on 2D-wavelet.
1. Reading an image of either gray scale or RGB image.
2. Converting the image into grayscale if the image is RGB.
3. Decomposition of images using wavelets for the level N.
4. Selecting and assigning a wavelet for compression.
5. Generating threshold coefficients using Birge-Massart strategy.
6. Performing the image compression using wavelets.
7. Computing and displaying the results such as compressed image, retained energy and Zero coefficients.
8. Decompression the image based on the wavelet decomposition structure.
9. Plotting the reconstructed image.
10. Computing and displaying the size of original image, compressed image and decompressed image. Platform: |
Size: 1024 |
Author:fer |
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Description: A suitable algorithm suggested with wavelet compression for gray scale
images based on e- and two-dimension combined hierarchical structure, in the
sub-band which has been generated by the aid of several types of wavelet
functions. It is shown that the using of combined based hierarchical structures
allows us to reduce the calculations complexity of compression and
decompression at constant values of compression coefficients-A suitable algorithm suggested with wavelet compression for gray scale
images based on one- and two-dimension combined hierarchical structure, in the
sub-band which has been generated by the aid of several types of wavelet
functions. It is shown that the using of combined based hierarchical structures
allows us to reduce the calculations complexity of compression and
decompression at constant values of compression coefficients Platform: |
Size: 1129472 |
Author:Tarik |
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Description: 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 the compression ratio. Platform: |
Size: 24576 |
Author:Xucheng |
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Description: 灰度图像的像素值范围在[0，255]之间，如果采用一个像素一个字节的存储方式，势必会造成空间的浪费。如果采用一定的无损压缩算法，可以大大提高减小文件大小，减少存储空间。本课题要求针对提供的256色（8位）位图数据，采用教材上第15章动态规划中图像压缩算法（图像分段合并的思想），设计一个类，实现灰度位图数据的压缩和解压过程。-Gray scale image pixel values range between [0,255], if a pixel byte storage, will inevitably lead to waste of space. If some lossless compression algorithms reduce file size can be greatly improved, reducing storage space. This issue requires bitmap data provided for the 256-color (8), using materials Chapter 15 dynamic programming algorithm for image compression (image segmentation combined thought), to design a class that implements compression and grayscale bitmap data decompression process. Platform: |
Size: 369664 |
Author:lawrence |
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Search - Algorithm gray scale compression