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第五次作业

于 2020-12-11 发布

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下载积分: 1 下载次数: 1

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代码说明：

说明： 1.学习使用fft2,ifft2,fftshift,ifftshift函数。用fft2函数对”lena.bmp”做二维傅立叶变换，并显示其频谱，用fftshift函数将频谱坐标原点移动到图像中心。用ifft2函数做傅立叶反变换。（提示：显示频谱时，可以先对频谱取对数，这样可以压缩动态范围很大的频谱，获得更好的显示效果）(1. Learn to use fft2, ifft2, fftshift, ifftshift functions. With the FFT 2 function, the lena.bmp'The two-dimensional Fourier transform is performed and the spectrum is displayed. The origin of the spectrum coordinate is moved to the center of the image by using the FFT shift function. The inverse Fourier transform is done with ifft2 function. (Note: when displaying the spectrum, the logarithm of the spectrum can be taken first, so that the spectrum with a large dynamic range can be compressed to obtain better display effect.))

文件列表：

t_5_1.m, 530 , 2020-11-22
t_5_2.m, 643 , 2020-11-22
t_5_3.m, 272 , 2020-11-24
t_5_4.m, 583 , 2020-11-24
t_5_5.docx, 333438 , 2020-11-24
test1D.mat, 2452 , 2020-11-24
lena.bmp, 263222 , 2020-11-11
phantom.bmp, 66614 , 2020-11-11

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toolbox_signal
curvelet transform and ridgelet transform source code

2012-09-13 20:00:59下载

积分：1
code
本代码是基于MATLAB环境下的一种基于DWT的数字水印的嵌入与提取，本算法对各种噪声具有一定的抗鲁棒性。(The code is based on the MATLAB environment based DWT digital watermark embedding and extraction, the algorithm has certain anti robustness of various noise.)

2021-04-05 12:49:03下载

积分：1
facial_image_quality
人脸图像质量评价体系介绍，非常全面，此方面研究的不错入门资料(Face image quality assessment system introduced, very comprehensive study in this regard a good introductory information)

2010-10-30 14:52:06下载

积分：1
图像程序
相关图像算法包括大律法分割，梯度分割，分水岭分割，活动轮廓，最小生成树，相关基因算法(Great Law Segmentation, Gradient Segmentation, Watershed Segmentation, Active Contour, Minimum Spanning Tree, Related Gene Algorithms)

2019-03-08 19:16:33下载

积分：1
image
对图像进行滤波，顶帽变换并计算中心，有图片，可直接运行。(The image filtering, top-hat transform and Computing Center, there are images which can be directly run.)

2010-03-14 22:59:14下载

积分：1
afdpf
正反馈主动频率偏移法，是应用于孤岛检测的一种算法，可以减小检测盲区，加快孤岛检测速度(Positive feedback active frequency offset method is an algorithm used in islanding detection)

2017-01-11 18:19:42下载

积分：1
notchfilter
陷波滤波器，可调节陷波频域位置，可调节陷波大小，函数，可直接调用，由高斯，理想，巴特沃斯组成。(notchfilter, which is suitable for digital image processing in frequency domain. Notch filter, adjustable notch frequency domain position, adjustable notch size, function, can be called directly, composed of Gauss, ideal, Butterworth.)

2018-11-17 09:05:18下载

积分：1
detecting
在复杂背景下的多目标检测算法的研究与源代码(In the complex context of multi-target detecting algorithm and source code )

2012-03-30 10:43:55下载

积分：1
Image-Fusion-Performance
说明：这个matlab代码，用于测试图像融合函数的算法性能。输入两幅原始图像和融合以后的图像，函数将评价出该算法的性能。(The matlab code, for testing image fusion algorithm function. Input the original image and the integration of two subsequent images, the function will evaluate the performance of the algorithm.)

2008-11-30 13:04:25下载

积分：1
adaptivethreshold
与坐标相关的阈值也叫动态阈值、局部阈值、自适应阈值，局部阈值法：自适应图像分割。(Threshold associated with coordinates, also called dynamic threshold, local threshold, adaptive threshold, local threshold method: adaptive image segmentation.)

2013-05-27 09:49:07下载

积分：1

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