Description: contourlet对LENA512灰度图的LP,DEF分解与系数重构代码,经过调试.-Contourlet LENA512 grayscale of the LP, DEF coefficient decomposition and reconstruction of the code after debugging. Platform: |
Size: 173056 |
Author:chy |
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Description: 本代码，用MATLAB编写。把灰度图转化为伪彩色图。-The code, prepared by using MATLAB. The grayscale into a pseudo-color map. Platform: |
Size: 99328 |
Author:张亚珍 |
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Description: Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the author, owner, distributor or authorized consumer of a document.
A new watermarking technique to add a code to digital images is presented: the method operates in the frequency domain embedding a pseudo-random sequence of real numbers in a selected set of DCT coefficients. Watermark casting is performed by exploiting the masking characteristics of the Human Visual System, to ensure watermark invisibility. The embedded sequence is extracted without resorting to the original image, so that the proposed technique represents a major improvement to methods relying on the comparison between the watermarked and original images.
Platform: |
Size: 98304 |
Author:omar |
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Description: The application works with non-compressed grayscale AVI files. Run mainGUI.p. Load AVI file first using "Load". To process the next frame use "Step". To run the application until stop, use "Run" and "Stop". You can draw the tracking object using mouse at any step. You can use the function on_threshold separately:
thresholded image = on_threshold(double( grayscale image ),1,number of thresholds)
thresholds value = on_threshold(double( grayscale image ),0, number of thresholds)
All the code provided is written in Matlab language (M-files and/or M-functions), with no dll or other protected parts of code (P-files or executables). The code was developed with Matlab 14 SP1. Matlab Image Processing Toolbox is required. Platform: |
Size: 102400 |
Author:Swati |
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Description: 基于奇异值分解的图像压缩。分别给出了灰度及RGB真彩图的压缩代码。
-Based on singular value decomposition of the image compression. Are given respectively grayscale and RGB true color pictures of the compression code. Platform: |
Size: 1024 |
Author:秦关 |
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Description: 里面包含有所有的matlab下的运行程序 还有相应的计算需要的图像 非常全面 另外图像压缩的源码大多集中在灰度图上,此源码是基于彩色图像的-Which contains all of the matlab run the program under the corresponding calculation also requires a very comprehensive image of the source code for other image compression are mostly concentrated in grayscale, this source is based on the color image Platform: |
Size: 611328 |
Author:韩玉兰 |
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Description: This code applies local histogram equalization an input image with a view to improve its contrast ratio. The image is read, converted to grayscale and resized with the inbuilt function of MATLAB. The window size may be changed, however, the window shift is pixel by pixel. The output is definitely a better contrast image as compared to the input but checkerboard effect is evident.-This code applies local histogram equalization on an input image with a view to improve its contrast ratio. The image is read, converted to grayscale and resized with the inbuilt function of MATLAB. The window size may be changed, however, the window shift is pixel by pixel. The output is definitely a better contrast image as compared to the input but checkerboard effect is evident. Platform: |
Size: 1024 |
Author:Sal |
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Description: 图像拼接，使用此代码可以方便的将一幅灰度图像或者彩色图像进行横向或者纵向拼接-Image mosaic, the use of this code can easily be a grayscale image or color image mosaic of horizontal or vertical Platform: |
Size: 1024 |
Author:Endeavour |
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Description: 代码可以实现图像的灰度变换，以及直方图均衡算法进行灰度修正的代码，有用户界面。matlab实现的-Code can achieve the image gray-scale transformation, and the gray histogram equalization algorithm is modified code, a user interface. matlab implementation Platform: |
Size: 46080 |
Author:王宇 |
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Description: 给予matlab的JPEG压缩程序，包含原始压缩图片，程序对灰度bmp图片进行JEPG编码，压缩成以0101形式的编码。JPEG编码先把图象色彩RBG变成亮度Y和色度Cr、Cb，它利用人的视觉对色度不敏感的特点，减少一部分色度数据，以达到压缩。 JPEG采取多种编码方式，包含有行程编码(Run Length Coding)和哈夫曼(Huffman)编码，有很高的压缩比。在编码前，先对数据进行分块，离散余弦变换（DCT）及量化，保留能量大的低频信号，丢弃高频信号以达到压缩。-Given to the JPEG compression matlab program, contains the original compressed image, the program of the grayscale bmp picture JEPG encoded, compressed into a 0101 form of encoding. RBG color coded JPEG image into a first luminance Y and chrominance Cr, Cb, which uses the human visual characteristics is not sensitive to the color, reduce the number of color data to achieve compression. Take a variety of JPEG encoding, includes length coding (Run Length Coding) and Huffman (Huffman) coding, a high compression ratio. In the code before the data block, discrete cosine transform (DCT) and quantization, to retain a large low-frequency signal energy, discarding high-frequency signals in order to achieve compression. Platform: |
Size: 175104 |
Author: |
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Description: 模式识别大作业题目和实习代码：
（1）请自己在互联网上任意找一张图片用做测试，命名为“学号后四_Original”。放在C++工程文件夹下（与CPP文件放在同一文件夹）。用C++调用OpenCV函数对该幅图片进行读入和显示操作。
（2）在(1)基础上，添加修改代码，将原图转换成灰度图像，并保存，命名为“学号后四位_Gray”。
（3） 请利用OpenCV中Sobel，Laplace，Canny算法相应函数对(2)中图像进行处理，并保存，命名为“学号后四位_Sobel”或“学号后四位_Laplace”或“学号后四位_Canny”。
（4）选做：利用OpenCV自由实现一个图像处理功能，要求至少用到4个不同的对图像操作的函数（选做请在作业提交时文件名后面加：_选做）。
-Model for large jobs and internships title code:
(1) Please find themselves in a picture on the Internet used for any test, named "study after four _Original". On the C++ project folder (with the CPP files in the same folder). OpenCV with C++ function calls to read the pictures and display operations.
(2) (1), based on the added modify the code, the original image into a grayscale image, and save named "study after four _Gray".
(3) Use of OpenCV Sobel, Laplace, Canny algorithm corresponding function (2) image processing, and preservation, named "study after four _Sobel" or "study after four _Laplace" or " After school number four _Canny ".
(4) Optional: using OpenCV free to implement an image processing functions required to use at least four different functions that operate on the image (choose to do in the job submission when the file name followed by: _ Optional).
Platform: |
Size: 648192 |
Author:吕明 |
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Description: 个函数提供灰度拉伸功能，输入图像应当是灰度图像，但如果提供的不是灰度
图像的话，函数会自动将图像转化为灰度形式。x1，x2，y1，y2应当使用双精度
类型存储，图像矩阵可以使用任何MATLAB支持的类型存储。-A function to provide gray stretch function, the input image should be gray-scale images, but if the offer is not gray of the image, then the function will automatically be converted to grayscale image format. x1, x2, y1, y2 should use double precision type storage, image matrix can store any type of MATLAB supports. Platform: |
Size: 2048 |
Author:宋畅 |
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Description: A matlab code to convert video into images
also to convert video to grayscale and B&W videos Platform: |
Size: 1024 |
Author:Udaya |
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Description: 这是我编写的数学形态学处理灰度图像和二值图像的源代码，没有使用matlab自带的函数。可以实现膨胀、腐蚀以及开闭运算。-This is written in mathematical morphology of grayscale images and the source code of the binary image, do not use Matlab comes with function. Can achieve expansion, corrosion, and the opening and closing operation. Platform: |
Size: 5120 |
Author:常合友 |
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Description: 文档内容是基于小波域的脆弱水印嵌入和提取的算法代码。原图像为灰度图像，水印为二值水印图像。-The document content is based on wavelet domain fragile watermarking embedding and extraction algorithm code. The original image to grayscale watermark for the binary watermark image. Platform: |
Size: 9216 |
Author:liyong |
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Description: 这是在matlab中使彩色图转化为灰度图有三种方法，代码可直接运行。-This is the methods of manipulation color into a grayscale in matlab. There are three methods, the code can be run directly. Platform: |
Size: 1024 |
Author:zhangxuejie |
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Search - grayscale code matlab