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Description: a very handy code to compress color images using spiht algorithm with shape adaptive technique this version is been updated with some features of ROI
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Size: 3536896 |
Author: code_breaker |
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Description: 本程序使用VC++编写，主要实现Spiht编码算法。Spiht算法虽然已经非常成熟，但本程序还是有了新的闪光点,程序中的小波算法使用的是9/7提升小波-This procedure using the VC++ development, the main Spiht coding algorithm. Spiht algorithm has been very mature, but a new procedure or闪光点, procedures in the algorithm using wavelet 9/7 lifting wavelet
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Size: 288768 |
Author: wenping |
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Description: spiht, is this code is correct
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Size: 2048 |
Author: rahman |
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Description: 分裂系数SPIHT算法源代码，在小波变换的零数子代父代的关系做了准确的描述！-SPIHT
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Size: 1112064 |
Author: 王鑫 |
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Description: 经典的图像压缩程序,相信学过图像压缩的人都明白的,欢迎使用哦-Classical image compression process, I believe that image compression learned to understand people are welcome to use Oh!!!
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Size: 261120 |
Author: zoe |
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Description: 基于 SOFM和 SPIHT 的图像压缩-IMAGE COMPRESSION USING SOFM AND SPIHT WITH WAVELET
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Size: 1024 |
Author: 缪国锋 |
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Description: The QccPackSPIHT module also provides the 3D-SPIHT algorithm for image-cube
coding. See the file LICENSE-3D-SPIHT for licensing information for
3D-SPIHT.-The QccPackSPIHT module also provides the 3D-SPIHT algorithm for image-cube
coding. See the file LICENSE-3D-SPIHT for licensing information for
3D-SPIHT.
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Size: 160768 |
Author: jason.. |
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Description: 針對傳統小波變換過程復雜的缺點和SPIHT算法編碼過程重復運算、存儲量大的問題,首先分析了小波基和小波分解層數的選擇,然后提出了一種新的可變閾值的SPIHT算法,該算法利用可變閾值對SPIHT算法中不重要像素列表(LIP)和不重要系數列表(LIS)進行分類得到一種更有效的編碼算法.仿真結果表明,該算法的壓縮整體性能要好于SPIHT算法.-Wavelet transform for the traditional complex process shortcomings and repeat the process of SPIHT coding algorithm computation, the problem of storage capacity, first of all an analysis of wavelet and wavelet decomposition level of choice, and then a new threshold variable SPIHT algorithm The algorithm uses a variable threshold is not important to the SPIHT algorithm in the list of pixels (LIP) and list of important factors (LIS) classification has been a more efficient coding algorithm. The simulation results show that the algorithm is better than the overall performance of compression SPIHT algorithm.
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Size: 274432 |
Author: jason.. |
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Description: 一種基于塊樹結構的SPIHT數字圖像壓縮算法: 在分析圖像經過小波變換后所具有的特性的基礎上,提出了一種改進的SPIHT算法.由于低頻系數占據圖像的百分之九十以上的能量,在圖像的重構中十分重要,所以,對這些系數不進行壓縮而直接傳輸 而最高頻系數相對不重要,所以不做處理,只在圖像重構時以指定的數值予以重構,因此不僅提高了圖像的質量,同時提高了圖像的壓縮率.在具體的算法中,提出了塊樹的結構,減少了算法所需的內存,拓寬了算法的應用范圍.-A tree structure based on the SPIHT block of digital image compression algorithm: After the analysis of images after the wavelet transform features, based on a modified SPIHT algorithm. Due to the low frequency coefficient images occupy more than 90 percent of energy in image reconstruction is very important, so these factors do not directly transfer compression The most high-frequency coefficient is relatively unimportant, so no treatment, only when the image reconstruction be designated numerical reconstruction therefore not only improve the image quality, while improving the image compression ratio. algorithms in specific, the proposed block-tree structure, the algorithm to reduce memory requirements and broaden the scope of application of the algorithm.
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Size: 273408 |
Author: jason.. |
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Description: 基于像素域的改進的SPIHT算法:分層樹的集分割算法是一種簡單、有效的嵌入式零樹編碼算法.在算法的基礎上提出了一種基于空域的改進方法.首先將圖像的偶數裂像素減去相鄰兩奇數列的均值,形成分裂圖像.然后將分裂圖像的奇數列提取出來作為主圖像,將偶數列提取出來作為幅圖像.最后將主幅圖像以合適的權值分別進行壓縮-Pixel-based domain improved SPIHT algorithm: the set partitioning in hierarchical tree algorithm is a simple, efficient embedded zerotree coding algorithm. In the algorithm based on an improved method based on the airspace. First of all, the even split the image pixels minus the two adjacent odd-numbered out of the mean to form a split image. and then split the images out of the odd-numbered extracted as the main image will be extracted out as even-numbered images. Finally, the main image to the right to appropriate values for compression
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Size: 310272 |
Author: jason.. |
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Description: compression image withe spiht matlab
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Size: 71680 |
Author: sussou |
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Description: 介绍用于图像压缩中小波变换SPHIT算法的一篇经典的英文文章。-image compression wavelwts SPHIT
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Size: 930816 |
Author: 撒谎的 |
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Description: 我发现这个网站上缺少关于3D-SPIHT编码。这个是我收集的3D-SPIHT，也是来自于Pro.Peraman的官网。 可以用来做实验，写论文。希望对大家有用。-i found that the website lack of 3d-spiht coding, this 3d-spiht coding is from websites of Pro.Pearlman. i hope it is useful for you.
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Size: 72704 |
Author: Richard Chang |
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Description: ：根据航空图像压缩系统的特点和要求，选择提升小波+SPIHT算法作为系统的实现方案。
为了提高算法的执行效率，对提升小波中的边界处理问题进行了合理简化，同时对SPIHT算法的实现
进行了改进。根据系统的实时性要求，选择TI公司的TMS320C6416 DSP芯片作为系统的实现内核，并
采用优化设计对关键代码进行优化，最后给出了系统的硬件实现框图。s-: According to the Aviation image compression system characteristics and requirements, choose the lifting wavelet+ SPIHT algorithm as a system implementations.
In order to improve the implementation of the algorithm efficiency, improve the boundary treatment wavelet conducted a reasonable and simplified, while SPIHT Algorithm
Has been improved. According to the system s real-time requirements, choose the TI s TMS320C6416 DSP chip as a system implementation of the kernel, and
Using optimal design of key code optimization Finally, the system block diagram of hardware implementation.
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Size: 354304 |
Author: lx |
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Description: SPIHT(多级树集合分裂算法)对图像压缩有很大的推进作用,此为原始代码,进行过仿真,程序结构清晰.-SPIHT (set of multi-level tree splitting algorithm) on the image compression to promote the role of a great, this is the original code, and carried out simulations, program structure clear.
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Size: 192512 |
Author: 徐萍 |
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Description: SPIHT, a powerful image coder with full matlab code
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Size: 761856 |
Author: hossein |
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Description: it s MATLAB implementation of SPIHT algorithm
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Size: 7168 |
Author: malli |
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Description: 实现SPIHT算法的主程序，自己实验过程中发现有效-SPIHT algorithm to achieve the main program, their experiment found that the effective
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Size: 199680 |
Author: James_Cheung |
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Description: spiht算法处理24位彩色图像，可以选择小波变换层数和任意比压缩，对低比特流压缩实现优化-spiht algorithms dealing with 24-bit color images, you can choose wavelet transform layers and arbitrary than the compression, low bit-stream compression for optimal
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Size: 315392 |
Author: blue |
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Description: matlab spiht 代码适于用图像处理-matlab spint
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Size: 50176 |
Author: wodexin |
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