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dwtwat
DWT的彩色水印嵌入算法,而且嵌入的水印附图像是彩色的。(DWT color watermark embedding algorithm, and the embedded watermark such as color drawings.)
- 2007-08-14 20:08:16下载
- 积分:1
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gridreciprial
梯度倒系数实现背景抑制,提高小目标检测的信噪比(reversing Coefficients gradient background suppression, and enhance the signal-to-noise ratio target detection)
- 2007-01-19 11:50:43下载
- 积分:1
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graythresh_n
自己写的双阈值分割算法,可以用在多个场合(Write their own dual-threshold segmentation algorithm can be used in a number of occasions)
- 2008-05-08 01:22:29下载
- 积分:1
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RdwtSvdWatermarking
将原始载体图片经过一维冗余离散小波变换分成四个子频带,分别对每个子频带进行奇异值分解, 将水印图片灰度值直接按比例缩小嵌入到奇异值矩阵中,再将此矩阵进行一次奇异值分解得到奇异值当做此子带的奇异值, 重建此子带矩阵,而后将进行反冗余离散小波变换得到嵌入载体后的水印图像。(The original image after the one-dimensional vector redundant discrete wavelet transform is divided into four subbands, respectively, of each sub-band for the singular value decomposition, the watermark image gray value scale down directly embedded into the matrix singular value, then this matrix is a Singular value decomposition singular value as the singular values of this sub-band, the reconstruction of this sub-band matrix and after anti-redundant discrete wavelet transform watermark image after embedding the carrier.)
- 2020-12-22 15:59:09下载
- 积分:1
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balloon
本人自编的气球SNAKE模型代码,效果还算不错。(I own balloons SNAKE model code, the effect is still good.)
- 2008-12-18 17:01:38下载
- 积分:1
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Markov
outguess 隐写源码,用于对于图像上附加秘密信息
(outguess steganography source code for additional confidential information for the image)
- 2010-01-24 22:56:04下载
- 积分:1
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ColorSegmentationExample
彩色图像分割的源代码 使用matlab6.5编写 (Color image segmentation of the source code to use prepared matlab6.5)
- 2007-11-06 11:00:07下载
- 积分:1
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conv2d
2d convolution on image
- 2009-03-24 19:25:22下载
- 积分:1
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orb_ransac
说明: 无人机影像ORB特征提取和RANSAC算法剔除(UAV image ORB feature extraction and RANSAC algorithm elimination)
- 2021-01-19 10:00:09下载
- 积分:1
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SHAKE_PROOF
手持式摄像机在使用时常常会受到使用者有意无意抖动的影响,从而影响成像效果,造成录制视频的不稳定及跳动问题,尤其是在使用者在一场景中特写或者跟踪某一具体目标时,使用者通常不能准确定位到或者估计出运动目标的位置,从而造成目标在视频中位置的不稳定,造成视频的主观效果变得不理想。
为了解决这一问题,我们需要设计一种算法来识别这种无意义的运动并设法通过补偿的方式来使得场景中的目标物体保持位置稳定的状态。
手持式摄像机捕获的视频通常都会受到抖动的影响,这严重的影响视频的主观效果。
这里提出的算法可以可靠的用于数字视频的去抖动。这个算法通过识别这些意外的抖动并且利用运动补偿的方法来获得一个较好的视频输出。
这个系统可以分为三个模块:(1)运动估计模块;(2)抖动识别模块;(3)运动补偿模块。
注:代码在matlab 7.7.0(R2008b)运行通过
[1] F Vella, A Castorina, M Mancuso. Digital image stabilization by adaptive block motion vectors filtering, IEEE Transactions on Consumer Electronics, 2002(Handheld cameras are often used by the user intentionally or unintentionally, the influence of jitter affect the imaging results, resulting in instability and beat the problem of recording video, and especially in the user in a scene close-up or tracking a specific target,users often can not accurately navigate to estimate the location of the moving target, resulting in the subjective effects of target location of the instability in the video, resulting in video not ideal.
In order to solve this problem, we need to design an algorithm to identify such a meaningless exercise and try to make the object in the scene to keep the position stable state by way of compensation.
The handheld camera captured video usually subject to the influence of jitter, the subjective effect of which seriously affect the video.
The algorithm proposed here can be reliably used for digital video to jitter. This algorithm by identifying the jitter of these accidents and the use of motion compensation m)
- 2012-05-30 12:03:28下载
- 积分:1