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Matlab source code for file selection
This should get you started on selecting the sequential frames: % The following will give the lengths of the cons...

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Can any body help me to creat .mat file in current folder ?
I suppose you only want to save a specific variable instead of everything: If you would like to save only variable, a: a...

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If else condition to determine if a year is a leap year
These are the conditions for a <http://en.wikipedia.org/wiki/Leap_yea leap year> : * The year is evenly divisible by 4; ...

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running libor masek code for Iris Recognition
You might need to run the createiristemplate.m Include the subfolders using addgenpath so that the subfolders which contain f...

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how should i compress the some multiple images by 1st converting to them gray scale and all images are supposed to be of same size.
This could be because you are using imshow. Convert your image to grayscale using: I = rgb2gray(img); % Resize your im...

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how to extract salient features of an image ? the salient features of an image includes the position and texture information of an image
Check the surf and sift features in Matlab

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How do I implement imhist?
You can find a nice implementation of <http://stackoverflow.com/questions/7401189/matlab-hist-function-for-image-data imhist> he...

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can anyone help me rectify matlab code for iris recognition? i am working on liber maseks open source code. but i am getting errors.. pls help..
Hello, You need to run the the createiristemplate.m file Please make sure your images are in the right directory and add ...

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How to run Libor Masek code?
Hello, You need to run the the createiristemplate.m file Please make sure your images are in the right directory and add ...

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parfor loop??? making it faster how?
you need first to use: matlabpool open, then use parfor You will find some nice examples <http://www.mathworks.com.au/hel...

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Automatic Segmentation of Mass in mammography images
You might want to have a look on Active contours/snake. This <http://www.iacl.ece.jhu.edu/static/gvf/ site> has a nice tutorial ...

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i have done 2d dft using fft2 and received phase and magnitude image.how to store that image shown using imshow in separate variable.
I suspect because the values are too high. You might need to rescale your image. This should rescale your image between 0 and ...

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how to find out the diameter of retinal vessels.
How about converting your image to binary followed by applying <http://www.mathworks.com.au/help/images/ref/regionprops.html reg...

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how to reduce bits per pixel in an image?
Check the <http://www.mathworks.com.au/help/images/ref/imresize.html imresize> function in Matlab

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How to smoothen the edges?
You might check some morphological operations you could perform on the image such as imfill and imdilate

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Smoothing only peaks in a Curve
Did you check the smooth function?

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Help with speeding up my code and adding a 4 plot sub function/local function?
Have you considered using parfor instead of a for loop?

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how can i perform histogram equalization for logical image
There are lots of options for histogram equalization, for example you can read on <http://www.mathworks.com.au/help/images/ref/...

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Hough transformation and Detecting parallel lines
I = imread('rectangle.jpg'); I2 = rgb2gray(I); %Get the 2 lines I3 = I2 > 60 & I2 < 75; % Clean image I4 = bwar...

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How to do segmentation for detecting microaneurysms?
Hope this gets you started: I=imread('retinal.PNG'); I2 = rgb2gray(I); I_bin = I2>150; In the next step, you can choose...

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Subscripted assignment dimension mismatch error
Not sure if this help but I cannot see the avg in your code. Have you initialized it? If you have, does its dimensions ma...

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i have a image of size 256 x 256. how to patch the image into 16 x16 sizes of patches,at the result i want to get 256 number of patches.
<http://www.mathworks.com.au/help/images/ref/blockproc.html blockproc> should be helpful hopefully

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Background subtraction algorithm for real time video?
You could get the frames from each video and apply your algorithm on each one. Is speed the issue here?

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how can i implement given formula in image processing?
There are lots of options for this: Please check out the Matlab functions <http://www.mathworks.com.au/help/images/contrast-...

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MATLAB BASIC : Storing values in array through indexing in a loop function
Just a quick comment on your code: Please make it more concise. It will be easier to understand and assist you. 1. Your f...

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How to detect eyes in matlab.
You could use the in built <http://www.mathworks.com.au/help/vision/ref/vision.cascadeobjectdetectorclass.html Viola Jones detec...

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sir,what is a matlab code for a two dimensional gabor filter?
Hopefully these 2 links will help: <http://www.mathworks.com.au/matlabcentral/fileexchange/5237-2d-gabor-filterver123 2D Gabor ...

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I have an image of an object with plane background, how can i know background intensity value
If you want to know the intensity at a particular location, I = imread('img.bmp); % read image intensity_val = I(20,40); ...

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How can I remove the boundary around an object?
Please have a look at regionprops and bwboundary

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How to rotate an image along y-axis?
Please try imrotate, you can find more information <B%20=%20imrotate(A,angle) here> Alternatively, you can try flipdim or rot...

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