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sparse
本压缩包包含了图像处理中稀疏表示的相关文献以及相关代码(This archive contains a sparse representation of image processing literature and related code)
- 2011-07-01 10:31:26下载
- 积分:1
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BFSPDFS
广度优先搜索和深度优先搜索在网络拓扑图上的实现。广度优先搜索是从某一节点开始,搜索与其线连接的所有节点,按照广度方向像外扩展,直到不重复遍历所有节点;深度优先搜索是从某一节点开始,沿着其搜索到的第一个节点不断深入下去,当无法再深入的时候,回溯节点,然后再在回溯中的某一节点开始沿另一个方向深度搜索,直到不重复的遍历所有节点。
(Breadth-first search and depth-first search in the network topology is realized. Breadth-first search is started from a node, searching all the nodes connected to its line, in accordance with the breadth direction as extracapsular extension, until no repeat traverse all nodes depth-first search is started from a node along its search to the first nodes deepening it, when it can not go any further, backtracking node, and then back again in the beginning of a node depth search in the other direction until the non-repetition of the traverse all nodes.)
- 2013-08-10 10:37:12下载
- 积分:1
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new_SPIHT
最新的用matlab实现的SPIHT算法,实现对图像的高性能压缩。(Matlab using the latest achievement of SPIHT, the realization of high-performance image compression.)
- 2007-06-21 16:27:52下载
- 积分:1
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fcm789
说明: 模糊C均值聚类算法的MATLAB实现,比较经典的程序(Fuzzy C-means clustering algorithm to achieve MATLAB, compare the classic procedure)
- 2008-09-16 15:46:43下载
- 积分:1
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lenaentropy
说明: 求lena图像的信息熵,图像大小为256X256(For lena image information entropy, image size is 256x256)
- 2008-11-18 18:58:53下载
- 积分:1
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jpegIO
实现原始的JPEG图片编解码,不借助任何的第三方库,纯C++。(To achieve the original JPEG image decoding, without using any third-party libraries, pure C++.)
- 2011-10-06 13:50:13下载
- 积分:1
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pcalda
说明: 包括pca和lda两个文件,先用pca降维后进行lda进行分类,用于人脸识别,实验结果很好。(It includes 2 files pca and lda. After the dimensionality reduction of pca, use lda for classification in face recognition. It has a very good experimental results.)
- 2009-08-22 19:43:06下载
- 积分:1
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SARDopplerEstimation
从回波中估计多普勒参数是合成孔径雷达运动补偿的关键。文中研究了多目标回波对参数估计的影响,从理论上推导了估计多普勒中心和调频率对回波的不同要求,并用两个指标举例分析了一段实测机载SAR数据,给出了实际应用中参数估计时选择回波的原则。(Doppler parameters estimation from radar echoes is a key step in SAR(Synthetic Aperture Radar}motion cornpensation.
This paper researched the efect of multiple targets echoes to estimate parameters and deducted theoretically the different
requirement for echoes in estimating doppler centroid and doppler frequency modulation rate.Th en giving a real airborne SAR echo
as example,we analyzed it with two measurements and concluded the principle about choosing echoes in practice.)
- 2009-07-07 22:31:12下载
- 积分:1
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gOMP
广义正交压缩感知的代码,实现了压缩感知与图像的重构(Generalized orthogonal compressed sensing code, to achieve compressed sensing and image reconstruction)
- 2020-08-25 16:28:15下载
- 积分:1
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JPEGCompression
编码:
(1)进行颜色转换,将RGB格式转换为YUV格式。
(2)将待编码的N×N的图像分解成(N/8)^ 2 个大小为8×8的子图像。
(3)对每个子图像进行DCT变换,得到各子图像的变换系数。这一步的实质是把空间域表示的图像转换成频率域表示的图像。
(4)对变换系数进行量化。
(5)进行Z字形重排
(6)使用霍夫曼变长变码编码器对量化的系数进行编码,得到压缩后的图像(数据)。
解码:
(1) 对压缩的图像数据进行解码,得到用量化系数表示的图像数据。
(2) 进行反Z字型重排
(3)用与编码时相同的量化函数或量化值表对用量化系数表示的图像数据进行逆量化,得到每个子图像的变换系数。
(4)对逆量化得到的每个子图像的变换系数进行反向正交变换(如反向DCT变换等),得到(N/8)^2 个大小为8×8的子图像。
(5)将(N/8)^2 个大小为8×8的子图像重构成一个N×N的图像。
(6)进行颜色组合,将YUV格式转换为RGB格式图像。(JPEG compression and decompression process)
- 2019-02-18 22:58:13下载
- 积分:1