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shuangchongJEPG
由于图像在经过一次 JPEG 压缩和双重 JPEG 压缩之后其 DCT 系数具有一定的相关性,通过对这种相关性进行分析,提出了一种基于 JPEG 图像双重压缩特性的图像篡改检测算法,并用此算法检测图像是否经过篡改和定位篡改区域。
(Since the image after a first JPEG compression JPEG compression and double its DCT coefficients having some relevance, by this correlation is analyzed, and an image based on JPEG image compression characteristic double tamper detection algorithm, and the algorithm used to detect whether the image been tampered with and locate the tampered areas.)
- 2021-04-02 22:29:07下载
- 积分:1
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hog
能够提取出图像I的HOG特征,返回其幅值,角度和在各个角度上的幅值。
是进行其他针对图像的HOG特征提取的前一步。(I can extract images of HOG features, return to their amplitude, angle and perspective in all of the amplitude. Is the other for image feature extraction HOG step forward.)
- 2008-04-29 09:41:09下载
- 积分:1
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LKPR-marzat
光流法,经典的LKPR-marzat算法,适合研究光流法的学者使用,可执行,无错误 (Optical flow method, the classic LKPR-marzat algorithm, for research scholars to use optical flow method, executable, error-free)
- 2021-04-10 23:18:58下载
- 积分:1
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edge-detectinterpolation
new edge-directed interpolation这篇文章所提算法的matlab实现(new edge-directed interpolation algorithm in this article referred to realize matlab)
- 2008-03-13 16:07:17下载
- 积分:1
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20081680
about algorithms of image enhancement processing
- 2009-11-18 15:21:59下载
- 积分:1
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TMM_WG
计算波导的matlab程序,主要是传输矩阵方法(Waveguide matlab calculation programs)
- 2009-10-15 21:08:47下载
- 积分:1
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lectura_letras.m
matlab code for processing of signals and images
- 2012-11-23 10:05:07下载
- 积分:1
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bw_fragile_robust_cross
matlab编写的对二值图像的数字水印添加与提取程序。压缩包中有示例图片。可以添加水印,结果肉眼不易分辨出变化,不影响使用。可加入信息长度达100个字节。提取时可验证是否被修改过,如未修改,可提取隐藏信息。当有修改发生时,可以定位修改的位置,并在图上标出。标识面积占修改面积的75%,一般修改都能标出(matlab prepared binary image of the digital watermark added and extraction procedures. Compression package has sample images. Can add watermarks, the results of the changes are not easily distinguishable from the naked eye, does not affect use. Can be added to the information length of 100 bytes. Verifiable extraction has been modified, if modified, can extract hidden information. When a modification occurs, you can modify the location of positioning and marked maps. Logo area accounted for 75 to amend the area generally can be identified modifications)
- 2008-02-20 13:32:56下载
- 积分:1
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open-file
说明: ① 打开图片文件;
② 实现图像的放大、缩小功能;
③ 实现图像的黑白处理。
(black setting
open file)
- 2011-04-12 21:45:55下载
- 积分:1
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matlabcurvefittingandcode
详细介绍了matlab下的曲线和曲面拟合,并有一份word的原理说明,介绍的很详细,可供参考和实际运用(Described in detail under the matlab curve and surface fitting, and a word there is the principle that the very detailed introduction is available for reference and practical use of)
- 2009-03-30 21:23:44下载
- 积分:1