tag:www.mathworks.com,2005:/matlabcentral/fileexchange/feedMATLAB Central File Exchangeicon.pnglogo.pngMATLAB Central - File Exchange - category:"Mathematics"User-contributed code library2014-12-26T02:04:41-05:0042021100tag:www.mathworks.com,2005:FileInfo/488652014-12-24T02:58:21Z2014-12-26T00:47:20ZReversible Watermarking Algorithm Using Sorting and PredictionReversible Watermarking Algorithm Using Sorting and Prediction<p>This paper presents a reversible or lossless watermarking
<br />algorithm for images without using a location map in
<br />most cases. This algorithm employs prediction errors to embed
<br />data into an image. A sorting technique is used to record the
<br />prediction errors based on magnitude of its local variance. Using
<br />sorted prediction errors and, if needed, though rarely, a reduced
<br />size location map allows us to embed more data into the image
<br />with less distortion. The performance of the proposed reversible
<br />watermarking scheme is evaluated using different images and
<br />compared with four methods: those of Kamstra and Heijmans,
<br />Thodi and Rodriguez, and Lee et al. The results clearly indicate
<br />that the proposed scheme can embed more data with less
<br />distortion.</p>mongkolhttp://www.mathworks.com/matlabcentral/fileexchange/authors/461293MATLAB 7.9 (R2009b)falsetag:www.mathworks.com,2005:FileInfo/488442014-12-22T13:04:31Z2014-12-25T04:04:58ZBit-Plane SlicingThis code is used for demonstration of bit-plane slicing<p>This code is used for demonstration of bit-plane slicing. The image given as input is sliced into 8 bit planes and each plane is displayed. Also the original image is reconstructed from these bit planes.</p>Akshay Bhosalehttp://www.mathworks.com/matlabcentral/fileexchange/authors/222499MATLAB 7.6 (R2008a)falsetag:www.mathworks.com,2005:FileInfo/488452014-12-22T13:14:16Z2014-12-25T04:04:22ZContrast StretchingThis code is used for demonstration of Contrast Stretching<p>This code is used for demonstration of Contrast Stretching. In the code the minimum intensity value of pixel of input image is mapped to 0, whereas the maximum intensity value of pixel of input image is mapped to 255. The intermediate values of pixels of input image are proportionally (linearly).</p>Akshay Bhosalehttp://www.mathworks.com/matlabcentral/fileexchange/authors/222499MATLAB 7.14 (R2012a)falsetag:www.mathworks.com,2005:FileInfo/488462014-12-22T13:22:27Z2014-12-25T04:03:32ZIntensity Level Slicing (2-level)This code is used for demonstration of Intensity Level Slicing (2-level)<p>This code is used for demonstration of Intensity Level Slicing (2-level). In this code, the pixels in a particular intensity range, specified by user, are highlighted (255-white) and the pixels out of range are made 0.</p>Akshay Bhosalehttp://www.mathworks.com/matlabcentral/fileexchange/authors/222499MATLAB 7.8 (R2009a)falsetag:www.mathworks.com,2005:FileInfo/488472014-12-22T13:27:05Z2014-12-25T04:02:56ZIntensity Level SlicingThis code is used for demonstration of Intensity Level Slicing<p>This code is used for demonstration of Intensity Level Slicing. In this code, the pixels in a particular intensity range, specified by user, are highlighted (255-white) and the pixels out of range are left unchanged.</p>Akshay Bhosalehttp://www.mathworks.com/matlabcentral/fileexchange/authors/222499MATLAB 7.6 (R2008a)falsetag:www.mathworks.com,2005:FileInfo/488692014-12-24T14:54:53Z2014-12-25T04:01:58ZHistogram EquilizationThis code is used for demonstration of Histogram Equilization<p>In this code an image is read and the histogram of this image is plotted. Then the process of histogram equalization is applied on original image and then transformed image and its histogram are plotted.</p>Akshay Bhosalehttp://www.mathworks.com/matlabcentral/fileexchange/authors/222499MATLAB 7.12 (R2011a)falsetag:www.mathworks.com,2005:FileInfo/433922013-09-06T19:26:47Z2014-12-24T10:40:58ZDavidMercier/NIMSA Matlab GUI to plot and to analyze (nano)indentation data (obtained with conical indenters)<p>A Matlab toolbox to plot and to analyze (nano)indentation data (obtained with conical indenters) </p>David MERCIERhttp://www.mathworks.com/matlabcentral/fileexchange/authors/316619MATLAB 7.14 (R2012a)Image Processing ToolboxMATLABYAML Matlab
(https://code.google.com/p/yamlmatlab/)falsetag:www.mathworks.com,2005:FileInfo/486102014-12-01T10:30:24Z2014-12-24T07:09:14ZWavelet Based Noise Robust Image SegmentationSegment image containing objects of various intensities and shapes in noisy inhomogenous background<p>This code is a part of our work "Wavelet Based Noise Robust Image Segmentation" . It contains the methods to extract out the darker or lighter objects of various intensities and shapes (including faint/ low intensity objects) from noisy or inhomogeneous background. This method can be used as general purpose bimodal segmentation method and can segment many real images much better than available state of the art general purpose methods.
<br />You may send the results on your image using this method at <a href="mailto:wavelet-and-image-processing@googlegroups.com">wavelet-and-image-processing@googlegroups.com</a> .</p>Ashutosh Kumar Upadhyayhttp://www.mathworks.com/matlabcentral/fileexchange/authors/502879MATLAB 7 (R14)Image Processing Toolbox1. Download "Toolbox Wavelets" by Gabriel Peyre from : http://www.mathworks.com/matlabcentral/fileexchange/5104-toolbox-wavelets'
2. Download litekmeans: http://www.mathworks.com/matlabcentral/fileexchange/24616-kmeans-clusteringfalsetag:www.mathworks.com,2005:FileInfo/488642014-12-23T22:58:55Z2014-12-23T22:58:55Zrgb_to_hsv(M)convertion from RGB to HSV space<p>convertion from RGB to HSV space</p>uyen nguyenhttp://www.mathworks.com/matlabcentral/fileexchange/authors/505123MATLAB 8.2 (R2013b)MATLABfalsetag:www.mathworks.com,2005:FileInfo/488622014-12-23T21:14:54Z2014-12-23T21:14:54ZChebyshev collocation code for solving two phase Orr-Sommerfeld eigenvalue problemChebyshev collocation code for solving two phase Orr-Sommerfeld eigenvalue problem<p>The Matlab code reproduces the shear mode dispersion curve as given in S.G. Yiantsios and B.G. Higgins, ‘Linear stability of plane poiseuille flow of two superposed fluids’. Physics of Fluids 31, 3225-3238 (1988).</p>Ashutosh Singhhttp://www.mathworks.com/matlabcentral/fileexchange/authors/538085MATLAB 8.1 (R2013a)false