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Nitin


97 total contributions since 2011

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Answered
Indexing to subtract sections of an array
Suppose you have 20 elements: Reshape to 4 rows and 5 columns X = reshape(1:20,5,4)'; % Substract rows Y = bsxfun(@m...

oltre 5 anni ago | 0

Answered
how to separate objects in binary image?
Your should check regionprops and <http://www.mathworks.com.au/help/images/morphology-fundamentals-dilation-and-erosion.html mor...

oltre 5 anni ago | 0

Answered
Problem with vision.VideoFileReader
Try running this code using the shaky_car video inbuilt in Matlab and see if it works: videoFReader = vision.VideoFileReader(...

oltre 5 anni ago | 1

Answered
manipulating cells in array.
% One of the many solutions t = ismember(A,'0') A(t)=[];

oltre 5 anni ago | 0

| accepted

Answered
second derivative of an image
There is a nice explanation on image derivative <http://www.swarthmore.edu/NatSci/mzucker1/e27/filter-slides.pdf here> . Please ...

oltre 5 anni ago | 0

Answered
how can i differentiate between images
% test image Img = zeros(20, 20); Img(5:15,5:15)=1; % Find if '255' intensity pixels exist in the image temp =...

oltre 5 anni ago | 0

Answered
how to get black & white pixels count from grayscale image...???
black corresponds to zeros in your image and white corresponds to ones if your image is double format. I_double = im2double...

oltre 5 anni ago | 0

Answered
how to calculate the diameter of a vessel
I would start by first experimenting with <http://www.mathworks.com.au/help/images/ref/regionprops.html regionprops> function in...

oltre 5 anni ago | 1

Answered
Left of a string
If you are accessing a cell array, you should use curly braces. Check out the examples <http://www.mathworks.com.au/help/matlab/...

oltre 5 anni ago | 0

Answered
how to avoid index out of bounds error
I tried running your programme using the Matlab built-in image, blobs.png and received the following error: *Attempted to ac...

oltre 5 anni ago | 0

Answered
making of a gui
I would suggest you learn the basics of making a GUI <http://www.mathworks.com.au/help/matlab/gui-building-basics.html here>

oltre 5 anni ago | 0

Answered
Increasing filter size of edge detector
There is a nice <http://stackoverflow.com/questions/9567882/sobel-filter-kernel-of-large-size thread> on stackoverflow which mig...

oltre 5 anni ago | 0

Answered
Crack Matlab Executable file?
Have a look a <http://www.mathworks.com.au/help/matlab/ref/pcode.html pcode> .

oltre 5 anni ago | 0

Answered
convert inf value to integer value
Download the powermod function <http://www.mathworks.com.au/matlabcentral/fileexchange/22725-variable-precision-integer-arithmet...

oltre 5 anni ago | 0

Answered
Create an Array with a Counter?
Why not use an array and save the elapsed time using tic and toc? There is a nice example <http://stackoverflow.com/questions...

oltre 5 anni ago | 0

Answered
How can I find pixel coordinates of a perimeter in a binary image?
Assuming your image is a binary one: [a,b]= find(I==1); % get the coordinates

oltre 5 anni ago | 0

| accepted

Answered
Hi, i want to know dt how to get 0's and 1's from a binary image?
I = imread('img.bmp'); I_bin = im2bw(I); % find the '0's in the image: a = find(I_bin==0); % find the '1's in the imag...

oltre 5 anni ago | 0

| accepted

Answered
How can I remove only the horizontal lines from the image preserving any arbitrary drawing over it
Did you check <http://www.mathworks.com.au/company/newsletters/articles/applying-modern-pde-techniques-to-digital-image-restorat...

oltre 5 anni ago | 0

Answered
Iris Recognition Project.
Please check out libour masek iris code, both the thesis and the matlab code can be found <http://www.csse.uwa.edu.au/~pk/studen...

oltre 5 anni ago | 0

| accepted

Answered
Given x and y coordinates of any point in an image, how to know if it is black or white
By the intensity value you get at that point. For example, if your image is double: I = im2double(imread('img.bmp')); ...

oltre 5 anni ago | 0

Answered
Motion detection in video
You could estimate the motion from one frame to another using <http://www.mathworks.com.au/matlabcentral/fileexchange/8761-block...

oltre 5 anni ago | 0

Answered
how to find mean absolute difference between two blocks of different images???
You can find a nice implementation of the above <http://www.mathworks.com.au/matlabcentral/fileexchange/8761-block-matching-algo...

oltre 5 anni ago | 0

Answered
Skeletonisation of an image
<http://www.mathworks.com/matlabcentral/fileexchange/27543-skeletonization-using-voronoi This> should get you started

oltre 5 anni ago | 0

Answered
Multiple loop doesn´t work with right values
You might need to initialize your cells first before saving to it. a = cell(1, num);

oltre 5 anni ago | 0

Answered
display mean and max of images....
mean_img = mean(Img(:)); max_img = max(Img(:));

oltre 5 anni ago | 1

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Answered
how to detect angle of an image
You might need a reference image / coordinates for the correct position and compare the difference between the two of them

oltre 5 anni ago | 1

Answered
how to calculate delay between two operations?
Will tic and toc do the <http://www.mathworks.com.au/help/matlab/ref/tic.html trick> ?

oltre 5 anni ago | 0

Answered
Loading and Saving a video
You can find lots of information and examples <http://www.mathworks.com.au/help/matlab/ref/videoreaderclass.html here.> This...

oltre 5 anni ago | 0

Answered
tile-based image registration
You might find it useful to estimate the srt transformation using surf. Have a look at the examples on this <http://www.mathwork...

oltre 5 anni ago | 0

Answered
find the pupil location of eye by dividing it into 8x8 region
The pupil region has a lower intensity than the rest of the image except for eyelashes. I would suggest you use an appropria...

oltre 5 anni ago | 0

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