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PowellPSORegistration
基于互信息的图像配准算法,优化算法采用Powell和粒子群向结合的算法(Based on mutual information image registration algorithm, using Powell optimization algorithm and particle swarm algorithm to combine)
- 2009-05-06 21:55:10下载
- 积分:1
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TTsaidemarcats
Tsai标定算法,用用于图像标定的,可以使用
(Tsai calibration algorithm used for image calibration, you can use)
- 2012-09-15 19:07:10下载
- 积分:1
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Matrix
说明: 求矩阵的特征值和特征向量,使用c语言编程(Matrix eigenvalues and eigenvectors, c language programming)
- 2011-03-07 12:51:59下载
- 积分:1
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MATLAB实现图像分割otsuf 源程序代码
本程序,直接用MATLAB实现otsuf算法,并使用此算法对经典图像进行分割。(This procedure, directly with MATLAB to achieve otsuf algorithm, and use this algorithm to segment the classic image.)
- 2017-06-22 18:06:28下载
- 积分:1
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KSVD-for-SAR_LOG
用基于稀疏表示和KSVD字典学习去噪方法在对数域对SAR图像抑斑,本方法相对于一些经典的SAR图像抑斑方法,抑斑效果大大提高。(Based on the sparse representation and KSVD dictionary learning denoising method in the logarithmic domain,we despeckle SAR image, compared with some of the classic SAR image speckle suppression method, this method is much more effective.)
- 2012-03-16 22:26:44下载
- 积分:1
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JPEGCompression
说明: 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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MotionEstimation
运动估计的几种方法,包括线性预测法、混合高斯法、特征值法和相邻帧差法等(Several motion estimation methods, including linear prediction method, mixed-Gaussian law, Eigenvalue and adjacent frames, such as poor law)
- 2007-12-19 18:19:49下载
- 积分:1
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VCPPDigital-image-processing
VC++Digital image processing
- 2017-04-17 19:23:55下载
- 积分:1
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Image-Segmentation-Method
本文主要研究基于水平集方法的活动轮廓模型图像分割,在回顾活动轮廓模
型发展的基础上,介绍了曲线演化理论及其水平集方法,证明了水平集方法可以
有稳定的数值实现方式且其处理拓扑变化的自然性,进一步引出了变分水平集方
法。
本文介绍了两种不同的几何活动轮廓模型:基于梯度信息的李纯明模型以及
基于区域信息的 Chan-Vese 模型(C-V 模型)。在分析上述两模型的优缺点上,提
出了一种改进的 C-V 模型,改进模型引入了距离约束项,同时对基于区域的外部
能量项进行了改进,使得水平集函数重新初始化寓于模型的演化之中,分割结果
对参数的依赖性减小。
(This paper mainly study image segmentation of active contour model based on
level set. After reviewing the development of the active contour model, curve evolution
and level set method are presented, then we proved that the level set method has a stable
numerical realization and can describe the topology change of the contour naturally, in
addition we introduce level set of variational method.
We introduce two different GAC models in this paper: Li Chunming model which
is based on gradient information and Chan-Vese model (C-V model) which is based
on region information. Based on the drawbacks and advantages of these two models, we
improve the C-V model by adding penalizing energy term of signed distance function,
at the same time, mending the external energy term which based on region information,
then the re-initialization of the level set can accomplish in the model evolution, and the
degree of the segmentation result depend on the parameters decline.
)
- 2011-12-20 20:27:30下载
- 积分:1
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Image-Fusion
泊松融合在某种意义上解决了图像融合的问题,但其在融合的过程中仅仅考虑了融入图像的梯度,而没有利用背景图像的梯度,因此,在使用泊松融合的过程中,需要对融入区域的标记较为准确,否则,会造成背景纹理的丢失,视觉上可以明显觉察图像融入的痕迹。因此,对公式稍作修改,在考虑前景的同时考虑背景的变化,可以得到更优的结果。(Poisson convergence in a sense solved the problem of image fusion, but it only considers the integration of image gradient in the integration process, but not the use of a background image gradient, therefore, the use of the Poisson integration process, the need for more accurate marker into the area, otherwise, it will result in the loss of background texture, image integration can clearly perceive the visual traces. Therefore, the formula slightly modified, in considering the prospect of taking into account the changes in the background, you can get better results.)
- 2015-04-21 12:11:50下载
- 积分:1