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DFT&DCT

于 2021-01-18 发布文件大小:3KB

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下载积分: 1 下载次数: 25

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代码说明：

编程实现二维8*8图像块的DFT，DCT变换输入一副RGB图像，将其转化为YCbCr颜色空间，然后对Y分量做分块DFT变换，保存为灰度图像，统计计算时间编程实现8*8块DCT变换,然后分别显示，当使用64个DCT系数里面的一些系数进行重构，比较其质量；同时熟悉采用FFT来实现DCT变换的思想，并显示2维8*8DCT变换的基函数图像(Programming the DFT, DCT transform of two dimensional 8*8 image block Input a pair of RGB images, transform it into YCbCr color space, then divide the Y component into block DFT transform, save as gray image, and calculate the calculation time The 8*8 block DCT transform is implemented by programming, and then it is shown that when using some coefficients in 64 DCT coefficients, the quality is reconstructed. Meanwhile, the idea of DCT transformation is familiar with FFT, and the base function image of the 2 dimensional 8*8DCT transform is displayed.)

文件列表：

代码
代码\DCT0.m, 151, 2017-12-05
代码\DCT1.m, 891, 2017-12-05
代码\DCT2.m, 321, 2017-12-05
代码\dft1.m, 392, 2017-12-05
代码\fft2.m, 1711, 2017-12-04
代码\lena88.bmp, 246, 2017-12-04
代码\RGB2YCbCr.m, 479, 2017-12-05
代码\RGB2YCbCr_2.m, 316, 2017-12-05
代码\showBase.m, 555, 2017-12-05

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icp111
说明：本算法是matlab代码，通过icp点云匹配算法实现三维点云的配准(The algorithm is matlab code, and the registration of three-dimensional point cloud is realized by ICP point cloud matching algorithm.)

2019-09-26 21:14:57下载

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opencv4.3
自主选择性的查看一幅图像中的部分区域的颜色直方图：允许用户在一幅图像中选择一个矩形区域，通过按住鼠标键画一个矩形，当鼠标放开是，高亮显示矩形框，同时在另一个独立的窗口中，使用画图函数画一个图表（选定区域的颜色直方图），分别用蓝，绿，红表示选中区域中每种颜色的像素数量。(Self-selective color in an image to view a partial area of the histogram: Allows the user to select a rectangular area in an image by holding down the mouse button to draw a rectangle when the mouse is released, the highlighted rectangle, Meanwhile in a separate window, using the drawing functions to draw a chart (selected color histogram region), respectively, with blue, green, red indicates the number of pixels in the selected area of each color.)

2014-02-13 16:18:41下载

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RayTracer
VB像素光影跟踪（图像渲染）工具,有需要的就下载吧。(VB Tracking pixel lighting (image rendering) tools, there is a need to download it.)

2013-08-04 15:09:52下载

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esienl
说明：这个压缩包里只要给出了边缘保持系数和等效视数的计算方法(This compression is given as long as the edge of the bag to maintain the equivalent depending on the number of coefficients and the calculation of)

2021-03-28 21:59:12下载

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FLICM
在图像分割中，FCM作为一种高效的分割方法收到广泛应用，FILCM分割算法是FCM算法的一种改进算法。(In image segmentation, FCM is widely used as an efficient segmentation method, and FILCM segmentation algorithm is an improved FCM algorithm.)

2017-09-26 23:07:05下载

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mv
说明： mfc开发程序及经验，以工业相机采集系统为例进行了框架类的设计使其完成采集存储及图像的处理(mfc development process and experience with industrial camera acquisition system as an example of the framework class is designed to complete the acquisition and storage and image processing)

2011-11-02 21:50:23下载

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ACO-edge-detection-master
说明：利用蚁群算法对图片进行边缘检测，该方法速度较慢但是鲁棒性高(The ant colony algorithm is used to detect the edge of the image, which is slow but robust)

2019-12-02 16:35:33下载

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opencv Snake
说明： opencv中的一段 snake的代码, opencv snake,(A piece of Snake code in opencv, opencv snake,)

2019-06-13 10:10:47下载

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GUI
对matlab中的GUI界面设计进行讲解并附有案例，例如如何进行界面菜单和控件设计，不同GUI之前函数传递，并讲解了如何调用自身函数(Matlab GUI interface design to explain the attached case, for example, how to interface menus and controls design, the different GUI function is passed before, and explain the how to call its own function)

2012-12-17 23:58:33下载

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ENVIMNFTrans
高光谱图像进行MNF变换，采用MAF评价图像的噪声；处理过程与ENVI软件中的完全一样。(MNF transformation of hyperspectral images, using noise MAF to evaluate the image.the process is exactly the same with ENVI software .)

2014-07-21 10:29:49下载

积分：1

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