Description: VC编写的高效的图象2D快速傅立叶正变换程序,编译通过.适合256色bmp图象变换.效果和matlab的fft2()没法比,但是程序值得借鉴.适合图象处理初学者,有助于理解傅立叶变换在图象处理中的重要作用.-VC efficient preparation of the image is 2D fast Fourier transform procedures compile. Bmp for 256-color image transformation. Results and Matlab fft2 () no match for, but the procedure is worth learning from. Image processing for beginners, helps to understand Fourier transform in the image processing an important role. Platform: |
Size: 84992 |
Author:李安定 |
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Description: matlab图像处理的一些命令,如applylut,提取二进制图像的轮廓的bwmorph,识别强度图像中的边界的edge,进行二维快速傅里叶变换的fft2等等.-Matlab image processing some orders, such as applylut. extract the binary image of the contours of the bwmorph identify intensity image of the border edge, 2D Fast Fourier Transform fft2 and so on. Platform: |
Size: 427008 |
Author:ruan pingfan |
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Description: 这是一个用Matlab编写的程序集，可以实现一些声音和图象的处理。声音的处理有：LPC，FFT，共振峰，频谱等。图象的处理也有很多，都有源代码和参考代码。还有非常友好的界面。-This is a Matlab prepared by the procedure set, can achieve some of the voices and image processing. Voice processing : LPC, FFT, formants and spectrum. Image processing there are many, have the source code and reference code. There are extremely friendly interface. Platform: |
Size: 13715456 |
Author:lijin |
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Description: 1.了解离散傅立叶变换及离散余弦变换的基本原理；
2.掌握进行FFT及逆变换的方法；
3.了解图像在频域中处理方法，应用MATLAB语言作简单的低通滤波器。
-1. Understand the discrete Fourier transform and discrete cosine transform the basic principle; 2. master for FFT and inverse transform; 3. understanding of image processing in the frequency domain method, MATLAB language for simple low-pass filter. Platform: |
Size: 16384 |
Author:小春 |
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Description: 傅立叶变换用于图像处理时的特性分析>>傅立叶变换用于图像处理时的特性分析-Fourier transform for image processing at the time of Analysis Platform: |
Size: 138240 |
Author:xiake |
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Description: 对于普通图象的一些频域的分析小程序,可以对图象处理参考作用.-For some general image analysis frequency domain applet, you can refer to the role of image processing. Platform: |
Size: 1024 |
Author:吕杰 |
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Description: The frequency domain plays an important role in image
processing to smooth, enhance, and detect edges of images. Although
image data typically does not include imaginary values, the fast Fourier
transform (FFT) has been used for obtaining spectra. In this paper,
the fast Hartley transform (FHT) is used to transform two-dimensional
image data. Because the Hartley transform is real valued, it does
not require complex operations. Both spectra and autocorrelations of
two-dimensional ultrasound images of normal and abnormal livers were
computed. Platform: |
Size: 4096 |
Author:archit |
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Description: 一个基于matlab的图像处理小例子，有dct压缩还原效果对比及dct和fft的频谱-A small matlab example of image processing, and to restore the effect of compression dct comparison of the fft and dct and spectrum Platform: |
Size: 83968 |
Author:xiaoyida |
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Description: 该gui函数基本上包括图像处理里面的最基本处理，相当于一个小型photoshop。比如读取文件，几何变换中的垂直镜像，平移，旋转，缩放；正交变换的DFT，FFT，DCT，DST，DHT，DWashT；灰度处理中的反色，直方图均衡，全局线性变换，分段线性变换，指数非线性变换，对数非线性变换；图像增强里面的加噪声，平滑，锐化，伪彩色增强；图像分割里面的灰度阈值法，Robert，Laplace，sobel，prewitt，canny算子边缘检测法；图像恢复里面的直接逆滤波，维纳滤波；图像编码里面的霍夫曼编码，行程编码-Basically, the gui functions including the most basic image processing inside the handle, which is equivalent to a small photoshop. For example, read the document, the geometric transformation of the vertical mirroring, shifting, rotating, zooming orthogonal transformation of the DFT, FFT, DCT, DST, DHT, DWashT anti-gray color processing, histogram equalization, global linear transformation , piecewise linear transformation, index of non-linear transform of the number of non-linear transformation image enhancement which increases the noise, smoothing, sharpening, pseudo-color enhancement the gray-scale image segmentation inside the threshold, Robert, Laplace, sobel, prewitt, canny edge detection operator method image restoration inside direct inverse filtering, Wiener filtering image coding inside the Huffman code, and so on Run-Length Coding Platform: |
Size: 398336 |
Author:guhuxiang |
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Description: 本文论述并设计实现了一个脱机自由手写体数字识别系统。文中首先对待识别数字的预处理进行了介绍，包括二值化、平滑滤波、规范化、细化等图像处理方法；其次，探讨了如何提取数字字符的结构特征和笔划特征，并详细地描述了知识库的构造方法；最后采用了以知识库为基础的模板匹配识别方法,并以MATLAB作为编程工具实现了具有友好的图形用户界面的自由手写体数字识别系统。实验结果表明，本方法具有较高的识别率，并具有较好的抗噪性能。-In this paper, designed and implemented an off-line handwritten numeral recognition system. The paper first pre-treatment identification numbers were introduced, including binarization, smoothing filter, normalization, thinning and other image processing methods secondly, to explore how to extract the number of characters in the structural characteristics and stroke features, and described in detail Knowledge of construction methods finally adopted in order to Knowledge-based template matching recognition method, and to MATLAB as a programming tool to achieve a friendly graphical user interface handwritten numeral recognition system. The experimental results show that this method has higher recognition rate, and has good anti-noise performance. Platform: |
Size: 350208 |
Author:zhangying |
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Description: 图像处理中对二维图像进行fft变换时需要用的fft程序-Image processing two-dimensional images of fft transform procedure when the need for fft Platform: |
Size: 1024 |
Author:邵毅 |
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Description: 利用matlab进行傅里叶变换及反变换,实现空域到频域，频域到空域的图像处理(Using Fourier transform and inverse transform, to achieve the airspace to the frequency domain, frequency domain to the airspace image processing) Platform: |
Size: 2443264 |
Author:yangandcan
|
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Search - fft Image processing matlab