归档

图像分割的一个小程序。经过检验，直接运行没问题。希望对大家有用，在这里分享了。(A small program for image segmentation. Tested directly run no problem. We want to share here.)

说明：  kl变换. KL变换的流程如下： （1)获取多幅图像的统计特性：图像之间的协方差 （2)获取协方差的特征值和特征向量，从而获取正交核:特征矩阵 （3)图像对应象素点对各个特征向量进行投影运算。(kl transformation)

关于图像小波边缘检测的MATLAB程序，用于一般图像边缘检测(wavelet-edge)

matlab光学仿真，模拟光线的反射、折射；非常强大的光学仿真软件。(Matlab optical simulation,Simulate the reflection and refraction of light;;very powerful optical simulation software.)

Image processing and analysis

压缩感知CS——采用小波变换进行稀疏表示，高斯随机矩阵为观测矩阵，重构算法为ILRS算法，对256*256的lena图处理，比较原图和IRLS算法在不同采样比例(0.74、0.5、0.3)下的重构效果，并各运行50次，比较算法性能PSNR和每次的运行时间(Compressed sensing CS- using wavelet transform as sparse representation, Gaussian random matrix as the observation matrix and IRLS algorithm as the reconstruction algorithm. Compare lena figure and the reconstruction results using IRLS algorithm at different sampling ratio (0.74,0.50.3),then each runs 50 times, compare the performance of PSNR and each running time)

说明：  这是MRI-CT融合示例code，编程语言为matlab。内含图像，注释清晰，代码完整，下载解压后可以直接运行。(This is an example code of MRI-CT fusion, and the programming language is matlab. The image is included, the annotation is clear, and the code is complete. After downloading and decompressing, it can run directly.)

使用matlab代码求出不规则区域所对应的最小外接矩形(find the smallest rectantangle of unregular region with matlab)

实时统计监控视频下路人人数，采用python(This is a demo made for tracking pedestrian)

图像的傅里叶变换。在代码中实现了将两幅图像的幅度谱和相位谱进行交换，进而理解两者在图像显示中的作用(Fourier transform of the image. Implemented in the code will be two images amplitude spectrum and phase spectrum of exchange, and thus to understand both the role of the image display)