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Description: 分形图像压缩原始算法，包括压缩和解压。
根据Jacin的分块压缩原理-fractal image compression original algorithm, including compression and decompression. According to the sub-block Jacin compression Principle
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Size: 1587 |
Author: 刘斌 |
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Description: 分形图像压缩原始算法，包括压缩和解压。
根据Jacin的分块压缩原理-fractal image compression original algorithm, including compression and decompression. According to the sub-block Jacin compression Principle
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Size: 1024 |
Author: 刘斌 |
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Description: 稀疏分解图像重建程序，把图像分解成多个小块图像，然后再各个子块重建后边缘处理后合并成整个图像。-sparse decomposition image reconstruction process, the image is divided into a number of small images, then each sub-block redevelopment edge after the merger into the whole image.
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Size: 63488 |
Author: fanghui20006 |
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Description: （1）应用9×9的窗口对上述图象进行随机抽样，共抽样200块子图象；
（2）将所有子图象按列相接变成一个81维的行向量；
（3）对所有200个行向量进行KL变换，求出其对应的协方差矩阵的特征向量和特征值，按降序排列特征值以及所对应的特征向量；
（4）选择前40个最大特征值所对应的特征向量作为主元，将原图象块向这40个特征向量上投影，所获得的投影系数就是这个子块的特征向量。
（5）求出所有子块的特征向量。
-(1) the application of 9 × 9 window of these images at random, a total sample of 200 sub-image (2) all sub-images according to out-phase into a 81-dimensional row vector (3) all 200 lines for KL transform vector, derived its corresponding covariance matrix of eigenvectors and eigenvalues, in descending order by eigenvalue and the corresponding eigenvector (4) a choice to 40 corresponding to the largest eigenvalue eigenvector as the PCA, the original image block to the 40 feature vectors on the projection, the projection coefficients obtained by this sub-block eigenvector. (5) calculated for all sub-block eigenvector.
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Size: 64512 |
Author: ly |
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Description: ％ 这是参照 University of California 提供的 MPEG 源代码的基础上编制的。
％用分块方法（8x8的块）对图象做zigzag变换，
％效率极高，程序简洁，属信息隐藏中常用的方法之一。
％作者：辽宁大学 信息学院 范铁生
％email:fts0@163.com- This is a reference to University of California to provide the MPEG source code based on the establishment. Of sub-block method (8x8 block) to make zigzag transform images, high efficiency and simple procedure, which is commonly used in information hiding methods. Author: Liaoning University School of Informatics Fan Tiesheng email: fts0@163.com
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Size: 1024 |
Author: gao |
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Description: 提出一种基于视觉特性的图像摘要算法，增大人眼敏感的频域系数在计算图像Hash时的权重，使得图像Hash更好地体现视觉特征，并提高鲁棒性。将原始图像的分块DCT系数乘以若干由密钥控制生成的伪随机矩阵，再对计算的结果进行基于分块的Watson人眼视觉特性处理，最后进行量化判决产生固定长度的图像Hash序列。本算法比未采用视觉特性的算法相比，提高了对JPEG压缩和高斯滤波的鲁棒性。图像摘要序列由密钥控制生成，具有安全性。-Based on the visual characteristics of the image digest algorithm, increasing the human eye-sensitive frequency-domain coefficients in the calculation of the image when the weight of Hash, Hash makes images better reflect the visual characteristics, and improve robustness. Will block the original image multiplied by the number of DCT coefficients generated by the key control of pseudo-random matrix, then the results of calculation based on the sub-block of Watson HVS treatment, and finally quantify the judgments arising from fixed-length sequence of images Hash . Than the algorithm did not use the visual characteristics of the algorithm, improve the JPEG compression and Gaussian filtering robustness. Abstract image sequence generated by the key control, with security.
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Size: 167936 |
Author: kurt |
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Description: 根据分块图像的均值与标准差将图像表示成三种状态：边缘态、平坦态、纹理态。然后计算状态关联图，提取出图像的空间特征。可用于图像检索。
-Under the sub-block images of the mean and standard deviation images express into three states: the edge of state, the flat state, texture state. And then calculating the state relation graph, extracted spatial features of images. Can be used for image retrieval.
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Size: 1024 |
Author: Owenli |
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Description: 用matlab做的基于DCT变换的图像压缩源码，先把图像分成8X8 的子块，然后做DCT变换，再量化，在恢复重建图像-Using matlab to do DCT-based transform image compression source code, first image is divided into 8x8 sub-block, and then make DCT transform, and then quantified, at the resumption of the reconstructed image
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Size: 1024 |
Author: 张子木 |
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Description: 基于VC的位图图像处理程序，可实现以下功能：
1.图象参数统计：最大值，最小值，均值，直方图；
2.对比度增强：直方图均衡；
3.图象平滑：中值滤波；
4.图象锐化: Sobel算子；
5.图像旋转：将图像旋转任意角度并显示；
6.图象变换：将图象分块(8*8),作DCT变换,并作IDCT；
-VC bitmap-based image processing procedures, can realize the following functions: 1. Image parameters statistics: maximum, minimum, average, histogram 2. Contrast enhancement: histogram equalization 3. Image Smoothing: median filter 4. Image sharpening: Sobel operator 5. Image Rotation: Rotate the image at any angle and shows 6. Image Transformation: The image sub-block (8* 8), for the DCT transform, and IDCT
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Size: 374784 |
Author: 姚海涛 |
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Description: 程序实现图像分块，凸包，分割等功能，学图像处理的朋友建议下载。-Image sub-block implementation procedures, convex hull, partition and other functions, the study image processing Friend recommended download.
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Size: 3072 |
Author: 廖建勇 |
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Description: 图像变换 将图象分块(8*8)，作DCT变换，并作IDCT：DCT是一种可分离图象变换，用来图象压缩编码，IDCT用来解压缩-Image transform to image sub-block (8* 8), for the DCT transform, and IDCT: DCT is a separable transform image to image compression coding, IDCT used to extract
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Size: 17408 |
Author: 陈杰 |
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Description: DCT水印，简单实用，基于8*8分块的DCT域水印嵌入算法水印图像为64*64-DCT watermark, simple and practical, based on the 8* 8 sub-block DCT domain watermark image watermark embedding algorithm is 64* 64
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Size: 1024 |
Author: 张涛 |
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Description: 编程实现基于8×8子块的DCT图像变换，基于JPEG量化矩阵的量化与反量化，基于8×8子块DCT的图像重建；以一幅512×512、8比特/象素的图像为实验对象，计算重建后的PSNR。-Programming based on 8 × 8 sub-block of the DCT image transform, quantization matrix based on the JPEG quantization and anti-quantitative, based on the 8 × 8 sub-block DCT of the image reconstruction to a 512 × 512,8 bits/as Su-image for the experiment, re-calculation of PSNR.
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Size: 111616 |
Author: zfyplay |
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Description: ieee一种基于混沌的新加密方法An Image Encryption Scheme Based on Chaotic Map
-
In this paper, a novel block digital image encryp-
tion scheme based on a chaotic coupled map lattices
(CML) is reported. Within this scheme, an original
image is decomposed into sub-blocks with a given size,
and an external secret key with 192-bit is used and
mapped to the system parameters, which are employed
to generate a spatiotemporal chaotic binary sequence
matrix to encrypt the block original image. Besides,
the former sub-block encrypted result will be acted as
a feedback to the following sub-block encryption proc-
ess. The proposed scheme is described in detail, along
with the security analyses such as key space analysis,
sensitivity analysis, information entropy analysis and
correlation coefficients analysis of adjacent pixels. The
computer simulation results indicate that the suggested
image encryption scheme has some properties desir-
able in a good security cryptosystem.
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Size: 1104896 |
Author: ff |
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Description: 可以设置图像分块的大小和分块数，然后来分块保存图像到文件目录下面-You can set the size of the image sub-block and sub-blocks, and then to block to save the image to a file directory
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Size: 1024 |
Author: shuzhenqiu |
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Description: 最常用的一个图像处理算法：各种图像格式经典分块算法-The most commonly used image processing algorithms, sub-block algorithm
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Size: 1024 |
Author: joeouyang |
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Description: divide the image in to sub blocks
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Size: 1024 |
Author: Vijaya Raghavan |
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Description: 将图象分块(8*8)，作DCT变换，并作IDCT：DCT是一种可分离图象变换，用来图象压缩编码，IDCT用来解压缩。-The image sub-block (8* 8) for the DCT transform, and to make IDCT: DCT is a separable image transformations, is used to image compression coding, IDCT is used to decompress.
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Size: 7168 |
Author: zy |
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Description: 图形图像处理 使用部分子块重叠直方图均衡化的对比度增强方法-Image Processing
An Advanced Contrast Enhancement Using Partially Overlapped Sub-Block Histogram Equalization
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Size: 747520 |
Author: 米菲 |
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Description: 基于GDAL库进行图像读写以及分块处理，有详细注解适合初学者参考！-GDAL library for image reading and writing as well as sub-block processing, a detailed explanation reference for beginners!
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Size: 10240 |
Author: Sunny |
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