压缩算法,几种比较全的文件压缩算法,包括Huffman,lz等
2019-12-21 20:26:49 242KB 几种比较全的 包括Huffman lz等
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点集压缩算法,douglas-peucker,Radial distance,Nth point等。使用win7,VS2013,Qt5.5.1,64位编译。对原程序作了Qt适应性修改。psimpl_v7_win32_demo\src\demo\x64\Debug下的程序可直接运行,裸机已实验
2019-12-21 20:22:53 26.37MB 点集压缩 c++
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通过二进制流读入文件,然后以字节计算统计的方式进行文件的压缩,压缩算法使用huffman,
2019-12-21 20:22:09 909KB huffman C语言 压缩算法
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c++实现道格拉斯压缩,MFC显示,对矢量数据这里是线条进行压缩
2019-12-21 20:15:04 332KB 道格拉斯 压缩
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基于Matlab实现的经典的图像压缩算法,包括哈夫曼编码,算术编码、字典编码、行程编码-Lempel-zev 编码正交变换编码如DCT、子带编码 粒子、子采样、比特分配、矢量量化
2019-12-21 20:07:10 1003KB 压缩算法 Matlab实现
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STM32移植 MINI LZO2.09压缩算法 编译通过 可以直接烧录运行 使用STM32F103VET6
2019-12-21 20:05:59 8.28MB MINI LZO 2.09压缩算法
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文章作者写的matlab源代码,该文章发表在Digital Signal Processing: Ke-Kun Huang , Hui Liu, Chuan-Xian Ren, Yu-Feng Yu and Zhao-Rong Lai. Remote sensing image compression based on binary tree and optimized truncation. Digital Signal Processing, vol. 64, pp. 96-106, 2017. (http://dx.doi.org/10.1016/j.dsp.2017.02.008) 遥感图像数据非常广泛,因此需要通过空间设备上的低复杂度算法进行压缩。具有自适应扫描顺序(BTCA)的二叉树编码是一个的有效算法。然而,对于大规模遥感图像,BTCA需要大量的内存,而且不能随机存取。在本文中,我们提出了一种基于BTCA的新的编码方法。小波图像首先划分为几个块,并由BTCA单独编码的。根据BTCA的属性,仔细选择每个块的有效截断点,以优化速率失真的比例,从而获得更高的压缩比、更低的内存要求和随机访问性能。由于没有任何熵编码,所提出的方法简单快速,非常适合于空间设备。对三个遥感图像集进行实验,结果表明它可以显着提高PSNR、SSIM和VIF,以及主观视觉体验。 The remote sensing image data is so vast that it requires compression by low-complexity algorithm on space-borne equipment. Binary tree coding with adaptive scanning order (BTCA) is an effective algorithm for the mission. However, for large-scale remote sensing images, BTCA requires a lot of memory, and does not provide random access property. In this paper, we propose a new coding method based on BTCA and optimize truncation. The wavelet image is first divided into several blocks which are encoded individually by BTCA. According the property of BTCA, we select the valid truncation points for each block carefully to optimize the ratio of rate-distortion, so that a higher compression ratio, lower memory requirement and random access property are attained. Without any entropy coding, the proposed method is simple and fast, which is very suitable for space-borne equipment. Experiments are conducted on three remote sensing image sets, and the results show that it can significantly improve PSNR, SSIM and VIF, as well as subjective visual experience.
2019-12-21 20:03:54 2.64MB 图像压缩
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用C/C++语言实现了JPEG图像压缩算法
2019-12-21 19:58:58 8KB 图像压缩 JPEG
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lzo压缩算法 例子 可运行 可查看 很方便 文件是网上下的
2019-12-21 19:51:36 49KB lzo
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HDR图像压缩算法比较研究 论文.
2019-12-21 19:45:07 613KB HDR图像压缩算法比较研究
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