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AreaMeasure
本文件包含连通区域标记以及面积测量的matlab源代码(This document contains the connected component labeling, and area measurement of the source code matlab)
- 2011-06-03 20:45:36下载
- 积分:1
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DCT-digital-watermarking-technology
提出了一种基于纠错编码的DCT域数字水印算法,该算法在检测时不需要原始图像,实现了盲检。并且对水印图像进行了利用超混沌置乱处理,提高了安全性能和抗攻击能力。纠错编码的引入使水印抗攻击能力明显增强。
(DCT digital watermarking algorithm based on error correction coding, the algorithm detected without the original image, blind. And watermark image of the the hyperchaotic scrambling process, improve the safety performance and anti-attack capability. The introduction of error correction coding watermark anti-attack capability significantly enhanced.)
- 2021-04-28 17:38:44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
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plsa
说明: 概率潜在语义分析Probabilistic Latent semantic alnalysis,完整程序包(Probabilistic Latent Semantic Analysis Probabilistic Latent semantic alnalysis, complete package)
- 2008-11-05 09:28:53下载
- 积分:1
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Alpha_shapes_3
这是三维点云数据边缘线提取的c++算法,适合于LIDAR数据的三维处理,供大家参考学习(This is 3 d point cloud data edge extraction of c++ algorithm, suitable for LIDAR data 3 d processing, provide everyone reference to study)
- 2020-11-05 17:09:51下载
- 积分:1
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shuzishuiying
数字水印的图像处理方法,很好,做图像水印的同行可以参考(Digital watermark image processing methods, well, do their counterparts in the image watermark can refer to the)
- 2009-10-07 19:15:55下载
- 积分:1
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parallel_algorithm_of_wavelet
用于图象处理的小波变换并行算法,本文在二进小波变换及Mallat快速算法原理的基础上,分析了小波变换的
可并行成分,研究了小波变换的并行算法.算法分析表明,并行小波变换可以有效
地提高运行速度,其并行处理效率也接近理想状态.(image processing for the wavelet transform parallel algorithm, In this paper, two Progressive Mallat wavelet transform and fast algorithm on the basis of principle, Analysis of the wavelet transform the parallel components of wavelet transform the parallel algorithm. algorithm analysis showed that Parallel wavelet transform effectively increase the operating speed and its parallel processing efficiency is close to the ideal state.)
- 2007-05-08 10:42:38下载
- 积分:1
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NLTV_WI_v1
非局部全变分小波域图像修复代码,实现算法WAVELET INPAINTING BY NONLOCAL TOTAL VARIATION,Xiaoqun Zhang,Tony F. Chan,Inverse Problems and Imaging,2010,4(1)(Non-local full variational wavelet domain image repair code algorithm WAVELET INPAINTING BY NONLOCAL TOTAL VARIATION Xiaoqun Zhang, Tony F. Chan, Inverse from and Imaging, 2010,4 (1))
- 2012-12-06 21:00:50下载
- 积分:1
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xiaobozengqiang
适合初学小波的同志,小波图像增强原理底层。严格高低频分解重构,没有使用小波工具库。(Suitable for beginners wavelet comrades, the underlying principle of wavelet image enhancement. Strict high-low-frequency decomposition of reconstruction, did not use the wavelet tool library.)
- 2020-10-26 23:30:00下载
- 积分:1
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C#图片浏览(支持鼠标拖动与滚轮缩放)
C#图片浏览(支持鼠标拖动与滚轮缩放)
- 2013-11-30下载
- 积分:1