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miyao
本文提出了基于二维混沌映射的数字图像水印算法,混沌具有随机性、似噪声及对初始条件的极端敏感性等特点。将经过二维混沌映射置乱后的数字水印信号嵌入图像小波域的低频系数,实现了数字水印的隐蔽性、保密性和稳固性;利用二维混沌映射Arnold变换对水印信号进行置乱,不仅增强了水印信号保密性,同时有效提高了视觉上抵抗图像剪切攻击的能力。(In this paper, two-dimensional chaotic map based on digital image watermarking algorithm, Chaos with random noise and the likelihood of extreme sensitivity to initial conditions and so on. Two-dimensional chaotic map will be scrambling after the digital watermark embedded image signal of the low-frequency coefficients in wavelet domain, the realization of a digital watermark hidden, security and stability the use of two-dimensional chaotic map on Arnold transform scrambling watermark signal, not only enhances the confidentiality of the watermark signal at the same time improve the visual image shear resistance attacks.)
- 2009-06-28 10:11:45下载
- 积分:1
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skin_color
根据国外文献算法中所写的MATLAB代码,实现肤色检测与轮廓提取。(According to foreign literature written in MATLAB code algorithm to achieve skin color detection and contour extraction.)
- 2010-11-25 14:10:25下载
- 积分:1
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phase-history-domain
任意航迹下单块的基于相位历史域的波前弯曲补偿算法(Single block of arbitrary Track bending compensation algorithm based on wavefront phase history domain)
- 2012-10-22 12:36:04下载
- 积分:1
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ImageMatch
遥感摄影测量专业相邻相片同名点之间的匹配,交互界面,可以人工选点(Remote Sensing Photogrammetry Professional adjacent matching interface point between the photo of the same name, you can manually choose the point)
- 2014-04-29 00:59:22下载
- 积分:1
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modeling_a_city
该文档描述了如何使用sketchup制作3D模型,并上传到google的3D仓库。(This document describes how to create 3D models using sketchup and uploaded to google' s 3D warehouse.)
- 2011-06-02 02:05:40下载
- 积分:1
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低照度图像增强算法
一种可适用于复杂光照环境的低照度图像增强算法,即基于内容感知的自适应对比度提高的增强算法。引入了改进的伽马矫正,可以根据低照度图像的明暗程度自适应的对图像进行预处理。在实验过程中还发现,虽然改进算法有效避免引入大量噪声,但仍有少量噪声存在,为了达到更好的视觉效果,利用改进的双边滤波对增强的图像进行处理,获得最后的增强图像。实验效果显示,该算法可对低照度图像实现理想的增强效果。(A can be applied to complex light environment of low illumination image enhancement algorithm, which based on the content of perception adaptive contrast enhancement algorithm. Introduced the improvement of gamma correction, can according to the low illumination image of light and shade degree adaptive to image preprocessing. In the process of experiment also found that although the improved algorithm effectively avoid introducing a lot of noise, but there still have a small amount of noise, in order to achieve better visual effect, use of improved bilateral filtering to enhance the image processing, finally enhance image. The experimental results showed that the algorithm can achieve a low illumination image enhancement effect.
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- 2020-07-16 22:18:49下载
- 积分:1
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super_resolution
用matlab仿真图像超分辨率重建技术中的正则化处理方法(Simulation using matlab image super-resolution reconstruction of the regularization approach)
- 2020-11-11 09:49:45下载
- 积分:1
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pcnn
matlab环境下,基于脉冲耦合神经网络(pcnn)的图像分割技术。(matlab environment, based on pulse coupled neural network (pcnn) Segmentation.)
- 2010-09-10 23:54:01下载
- 积分:1
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gusu
利用visualC++和图像处理的知识,编写程序对果蔬进行自动识别(Using visualC++ and image processing knowledge, write a program for automatic identification of fruits and vegetables)
- 2010-10-17 22:47:17下载
- 积分:1
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tiduxiajiang
梯度下降法的图形表示,里面有详细的中文注释,运行即可看到结果。(Gradient descent graphical representation, which the Chinese have detailed notes, you can see the results running.)
- 2016-10-22 10:17:01下载
- 积分:1