Description: 主要是对图像实现DFT,DCT变换，利用二维小波分析对图像作二层小波分解，显示条状图，十字图及频谱等-Realize the image is mainly DFT, DCT transform, the use of two-dimensional wavelet analysis of images for the second floor of wavelet decomposition, indicating strip maps, charts and cross spectrum Platform: |
Size: 3072 |
Author:袁辉 |
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Description: 用dft计算图像的功率谱，希望对opencv的新手有帮助-DFT calculation using the power spectrum image, and they hope to have opencv assist novice Platform: |
Size: 95232 |
Author:yinxin |
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Description: 基于OpenCV的源码， 实现了利用DFT离散傅里叶变换计算图像的功率谱。-OpenCV based on the source, the use of implementation of the Discrete Fourier Transform DFT calculation of the power spectrum image. Platform: |
Size: 99328 |
Author:无梦 |
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Description: 题目：离散富立叶变换（DFT）和频谱分析.matlab实现 1信号函数h(t)= e-a*t*tsin(2πft)2编程计算的离散富立叶变换（DFT）和IDFT图像。3计算振幅谱，相位谱以及检测信号主频-Title: Discrete Fourier Transform (DFT) and spectral analysis. Matlab function to achieve a signal h (t) = ea* t* tsin (2πft) 2 programming computing discrete Fourier transform (DFT) and IDFT image. 3 Calculation of the amplitude spectrum, phase spectrum, as well as detection of signal frequency Platform: |
Size: 100352 |
Author:chissie |
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Description: 利用opencv编写的一段用DFT计算图像的功率谱的程序代码-Opencv prepared using DFT calculation using a section of the power spectrum image of the program code Platform: |
Size: 95232 |
Author:xuefengathena |
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Description: 对图像进行傅里叶变换，观察其幅度谱和相位谱-Fourier transform of the image to observe its amplitude spectrum and phase spectrum Platform: |
Size: 2048 |
Author:huihui |
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Description: 采用OPENCV封装的图像二维DFT运算，通过该类可生成图像二维傅里叶变换矩阵，通过可选参数可调整生成傅里叶矩阵、傅里叶频谱同时可选择对数加强属性增强傅里叶频谱的显示效果。-OPENCV package using two-dimensional DFT computation of image, the image can be generated through such two-dimensional Fourier transform matrix generated by the optional parameter adjustable Fourier matrix, Fourier spectrum also can choose the number of enhancing properties of the enhanced fourier leaves the spectrum display. Platform: |
Size: 1024 |
Author:葛世超 |
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Description: Visual C／C++图形图像与游戏编程典型实例解析--VC图像处理-傅立叶变换
注意事项：
1>在进行DFT时，强烈建议选用64*64的图像，选用256*256的图像，**时间太长，中间可能导致死机**。
2>程序中在显示频谱图像时有两种方式，即移至中心和未移至中心，可以通过将/** pow(-1, x+y)*/的注释去掉来进行转换。
由于本程序使用了VFW组件，所以在Project－－Setting中－－Object/libray modules中添加vfw32.lib。-Visual C/C++ graphics and game programming typical examples of analysis- VC Image Processing- Fourier Transform Notes: 1> during the DFT, it is strongly recommended to use 64* 64 images, selected images of 256* 256,** it is too long, the middle may lead to crashes**. 2> the program displays the spectrum images in two ways, ie not moved to center and moved to center, you can be /** pow (-1, x+ y)*/comments removed for conversion. Since the program uses the VFW components, so Project- Setting the--Object/libray modules add vfw32.lib. Platform: |
Size: 151552 |
Author:hty |
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Description: 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 Platform: |
Size: 1987584 |
Author:sunxiaowen |
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Description: DFT.m:计算一幅图像的DFT，并在屏幕上显示频谱图，将频谱原点移到图像中间。
zhifangtu.m：用直方图均衡算法对一幅图像进行增强。
fenge.m：设计一种算法自动从灰度图像上求得全局分割阈值，将一幅图像中的目标和背景分隔开，使这幅图像的目标和背景有着不同的平均灰度。
gongshengjuzhen.m:求出一幅图像的像素和有下一个像素的共生矩阵。
OpenAndClose.m：实现二值形态学的膨胀、腐蚀、开操作、闭操作。-DFT.m: Calculates the DFT of an image and displays the spectrum on the screen, moving the spectral origin to the center of the image.
Zhifangtu.m: A histogram equalization algorithm for an image enhancement.
Fenge.m: design an algorithm automatically the grayscale image to obtain the global segmentation threshold, an image of the target and the background is separated, so that the image of the target and the background has a different average gray.
Gongshengjuzhen.m: Find the co-occurrence matrix of an image pixel and the next pixel.
OpenAndClose.m: Binary morphology to achieve the expansion, corrosion, open operation, closed operation. Platform: |
Size: 3072 |
Author:王维佳 |
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Search - DFT spectrum image