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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...
plus de 9 ans il y a | 0
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...
plus de 9 ans il y a | 0
Problem with vision.VideoFileReader
Try running this code using the shaky_car video inbuilt in Matlab and see if it works: videoFReader = vision.VideoFileReader(...
presque 10 ans il y a | 1
manipulating cells in array.
% One of the many solutions t = ismember(A,'0') A(t)=[];
presque 10 ans il y a | 0
| A accepté
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 ...
presque 10 ans il y a | 0
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 =...
presque 10 ans il y a | 0
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...
presque 10 ans il y a | 0
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...
presque 10 ans il y a | 1
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/...
presque 10 ans il y a | 0
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...
presque 10 ans il y a | 0
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>
presque 10 ans il y a | 0
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...
presque 10 ans il y a | 0
Crack Matlab Executable file?
Have a look a <http://www.mathworks.com.au/help/matlab/ref/pcode.html pcode> .
presque 10 ans il y a | 0
convert inf value to integer value
Download the powermod function <http://www.mathworks.com.au/matlabcentral/fileexchange/22725-variable-precision-integer-arithmet...
presque 10 ans il y a | 0
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...
presque 10 ans il y a | 0
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
presque 10 ans il y a | 0
| A accepté
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...
presque 10 ans il y a | 0
| A accepté
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...
presque 10 ans il y a | 0
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...
presque 10 ans il y a | 0
| A accepté
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')); ...
presque 10 ans il y a | 0
Motion detection in video
You could estimate the motion from one frame to another using <http://www.mathworks.com.au/matlabcentral/fileexchange/8761-block...
presque 10 ans il y a | 0
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...
presque 10 ans il y a | 0
Skeletonisation of an image
<http://www.mathworks.com/matlabcentral/fileexchange/27543-skeletonization-using-voronoi This> should get you started
environ 10 ans il y a | 0
Multiple loop doesn´t work with right values
You might need to initialize your cells first before saving to it. a = cell(1, num);
environ 10 ans il y a | 0
display mean and max of images....
mean_img = mean(Img(:)); max_img = max(Img(:));
environ 10 ans il y a | 1
| A accepté
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
environ 10 ans il y a | 1
how to calculate delay between two operations?
Will tic and toc do the <http://www.mathworks.com.au/help/matlab/ref/tic.html trick> ?
environ 10 ans il y a | 0
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...
environ 10 ans il y a | 0
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...
environ 10 ans il y a | 0
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...
environ 10 ans il y a | 0