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GUI_ImageAnalyzerV1.0
REWIND Project中图像篡改检测工具源代码(Matlab GUI for digital image forensic provided by REWIND Porject)
- 2016-04-18 11:22:31下载
- 积分：1
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Brief
说明： python实现的运用brief算法提取特征点的图像拼接(The implementation of Python using brief algorithm to extract feature points of image mosaic)
- 2020-04-25 18:33:43下载
- 积分：1
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MorphologicalanalysisofcellsMatlab
细胞图形处理，检测细胞的边缘跟踪，用于计算周长(Graphics processing cells to detect the edge of cell tracking, used to calculate the perimeter)
- 2009-05-28 09:22:02下载
- 积分：1
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duochongxiaobo
说明： 小波分析增强滤波。小波变换的原理类似傅里叶变换，只是把三角函数基换成了小波基。与傅里叶变换不同，小波变换有两个变量：scale和translation。scale控制小波函数的收缩，其导数即为频率，translation控制小标函数的平移，平移量对应时间。通过信号的伸缩平移，可以得到某种重合情况，这样积分也会得到一个极大值，不同的是，得到频率成分的同时，还可以知道该频率的时间位置。(Wavelet analysis enhances filtering.The wavelet transform works like the Fourier transform, except that the trigonometric basis is replaced by a wavelet basis. Unlike the Fourier transform, the wavelet transform has two variables: scale and Translation. Scale controls the contraction of the wavelet function, its derivative is frequency, translation controls the translation of the small scale function, and the translation corresponds to the time. By stretching and shifting the signal, you can get some kind of coincidence, so that the integral will also get a maximum, but the difference is that when you get the frequency component, you can also know the time position of that frequency.)
- 2020-12-24 11:48:44下载
- 积分：1
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cvpr01_zollei1109
医学图像配准，医学图像2D_3D配准，基于vc++开发。(The registration of pre-operative volumetric datasets to
intra-operative two-dimensional images provides an im-
provedway of verifying patient positionandmedical instru-
ment location. In applications from orthopedics to neuro-
surgery, it has a great value in maintaining up-to-date in-
formation about changes due to intervention. We propose a
mutual information-based registration algorithm which es-
tablishes the proper alignment via a stochastic gradient as-
centstrategy. Ourmaincontributionliesinestimatingprob-
ability density measures of image intensities with a sparse
histogrammingmethodwhichcouldlead to potentialspeed-
up over existing registration procedures and deriving the
gradient estimates required by the maximization procedure.
Experimental results are presented on fluoroscopy and CT
datasets of a real skull, and on a CT-derived dataset of a
real skull, a plastic skull and a plastic lumbar spine seg-
ment.)
- 2014-09-09 16:29:28下载
- 积分：1
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bp_erf_log
混合像元分解，是定量遥感中非常重要的组成部分之一，在反演地表参数时是必须要考虑的因素之一，文中罗列了分解的一些方法(mixed pixel decomposition, is the quantification of remote sensing very important component of one of the the inversion of surface parameters is to be considered one of the factors, the paper listed some of the decomposition method.)
- 2013-06-21 17:09:36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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repeatability_demo
评价描述子的好坏，能给出重叠率、正确率和查错率等(Evaluation of descriptors)
- 2014-01-16 16:44:05下载
- 积分：1
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image-stitching
实验两张图片的拼接，对于图片中的匹配对，用ransac方法消除错配，并估计出仿射矩阵。然后将一张图进行仿射变换，再实现拼接(Experiment two pictures of the stitching, matching pairs for the picture, with ransac way to eliminate mismatches, and to estimate the affine matrix. Then an affine transformation diagram, and then realize splicing)
- 2011-06-23 22:00:33下载
- 积分：1
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Cpp1
说明： 基于opencv的小面积区域的去除.可以去除面积小于指定面积的无兴趣区域.(Opencv-based small area of the region to remove. Can remove an area of less than the specified area is not interested in the region.)
- 2008-12-04 11:17:17下载
- 积分：1
