Gray Squirrel

not getting results for 4 level/nlevel gaussian pyramid please try for improvement but gray levels are identified for successive levels and code is working wellunable to watch images for intermediate levels

This function detects a circle in any gray scale image by thesholding using Ostu's rule. The range of radius for detection of circle can be defined inside the function named Hughcir.m.

Automatically adjusts the contrast of images(color/gray) to the "optimum" level, using contrast stretching.


Platforms: Matlab

Simple function for drawing a rectangle in a gray image. Good for beginners.


Platforms: Matlab

Automatic colorization of gray-scale images using color palette.A simple algorithm is employed.The speed of the algorithm and the quality of the result colored image depends on the correct selection of the color palette image. The smaller the size of the palette, the faster the algorithm.


Platforms: Matlab

Here we find out the histogram of any gray level image by not using the command imhist(), which is an inbuilt one rather by without using the inbuilt command. Reader may verify the plot by comparing with that generated from using the inbuilt command.


Platforms: Matlab

This program performs Multithresholding (gray-scale reduction).The program is based on the algorithm described in the following paper:N. Papamarkos and B. Gatos "A new approach for multithreshold selection" Computer Vision, Graphics, and Image Processing-Graphical Models and Image , Processing,...


Platforms: Matlab

function [c_img] = RGB_layers(imgs,RGBs)RGB_layers - Visualize n gray/binary images in pseudo colorINPUT: (imgs,RGBs) imgs: m*k*n matrix. imgs(:,:,i) is a grayscale/BW image. RGBs: n*3 matrix, each row represents what color the layer will be.(Optional. By default it will be the jet colormap)...


Platforms: Matlab

This code generates colored and gray negative images.


Platforms: Matlab

These files show the SER and BER(image data)for BPSK,QPSK and 8PSK with Gray coding. The user has the option of selecting Gray or no Gray coding and using either data or an image (Lena1.bmp)


Platforms: Matlab

This function converts a gray coded string to its equivalent decimal representation. It accepts rows of gray coded string and returns the equivalent decimal sequence as a column vector.Example:>>g = [1 0 0 1 1;0 0 0 1 1; 0 1 1 0 1];>>gc2dec(g)ans = 29 2 9


Platforms: Matlab

Following features are calculated:% Mean% Variance% Skewness% Kurtosis% Energy% EntropyAny Other histogram based features can be easily incorporated.Enjoy it


Platforms: Matlab

Converts a gray bitmap to RGB using Matlab gray and jet palettes.


Platforms: Matlab

This script calculate the contrast between gray matter and whitematter of mouse spinal cord based on equations for signal intensity ofgray and white matter in a gradient echo imaging sequence. The T1, T2,and T2-star values for gray matter and white matter were taken fromMeyerand et al. Magnetic...


Platforms: Matlab

The histogram of the image gives the frequency of occurrence of the gray level. it gives the no. of times a particular gray level occurs in the image. In the case of a colour image,the histogram is expected to give the number of a particular colour has occurred in the image.


Platforms: Matlab

this code does gray scale image compressionto use this codes u have to first convert RGB image to grayscale and also its colormap.....


Platforms: Matlab

Dirk-Jan KroonThis function opens an image file containing a plot. Then the origin, maximum X and Y axis, and data points can be manually and automatically selected to obtain a new vectorial plot (the animated screenshot shows the menus included).Using Image Processing Toolbox to open idexed and...


Platforms: Matlab

Program that allows to use an image (in black and white, gray scale or in colors) as starting cells for the Conway's game of life. You can also edit the image or start a blank image. The animation of the cells can be recorded. The parameters for the rules for the life of the cells can be changed.


Platforms: Matlab

Concentration-type game; 54 gray squares. Click a pair of squares and try to match the colors hidden beneath. Find all 27 color pairs in as few moves as possible; MATLAB returns a rating based on the number of moves it took to complete the screen.


Platforms: Matlab

This m-file simulates MPSK (BPSK,QPSK,8PSK)with theoretical and simulated results using Gray coding. Numerical examples of a satellite link design are shown using QPSK and/or 8PSK when the bit rate(Rb)is greater than the channel bandwidth Wc (Band-limited channel).


Platforms: Matlab