Respondida
how to solve a simultaneous equation of 2 variables.
A = [1 3;... 2 4;]; b = [5;... 4]; %Solve Ax=b as A\b X = A\b >> A\b ans = -...

alrededor de 13 años hace | 0

Respondida
How to clear objects connected to the lower borederof the image?
You could use the <http://www.mathworks.com/help/images/ref/imclearborder.html imclearborder> function. There's a blog articl...

alrededor de 13 años hace | 0

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Local-self similarity descriptor
Here are some options: 1. Take a histogram after converting your image to log polar coordinates. The following thread has some ...

alrededor de 13 años hace | 0

Respondida
how to find center point coordinates of circles in an image file
You can use imfindcircles to find the circles. The function returns circle centers and radii. If the circles can't be found usin...

alrededor de 13 años hace | 1

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Respondida
dice similarity index between segmented image and ground truth
How about this: dice = 2*nnz(segIm&grndTruth)/(nnz(segIm) + nnz(grndTruth)) This expects segIm and grndTruth to be of th...

alrededor de 13 años hace | 0

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Respondida
How to design a 5by5 ,5cross and X-1 median filter
You can use the following two functions: <http://www.mathworks.com/help/images/ref/medfilt2.html medfilt2> and <http://www.m...

alrededor de 13 años hace | 0

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Respondida
Matching an image with a database
save idx.mat idx; save centers.mat centers;

alrededor de 13 años hace | 0

Respondida
smoothening disparity
You might want to try some edge-preserving smoothing filters like anisotropic diffusion. This link might be useful: <http://...

alrededor de 13 años hace | 1

Respondida
How do I circularly shift the alphabet without using circshift function?
alphabet = 97 : 122; >> char(alphabet) ans = abcdefghijklmnopqrstuvwxyz shifted_alphabet = alphabet-3;...

alrededor de 13 años hace | 0

Respondida
Error in running the Scene change detection example in CV system toolbox
Replace the following line: mean_blks_prev = zeros([15, 1], 'single'); with mean_blks_prev = zeros([numel(X),1], 's...

alrededor de 13 años hace | 1

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Respondida
how to detect eye location?
You could follow the following general approach. Note that a lot will depend on your image, noise and kind of data. Use imf...

alrededor de 13 años hace | 0

Respondida
Hiiii...I found trouble in dividing the image into different scale space and smoothing it by gaussian filter
If you don't have the Computer Vision System Toolbox and want to compute the scale space, why don't you just do the smoothing yo...

alrededor de 13 años hace | 0

Respondida
A function that calculates how many entries' value and location are the same between two matrices
Try this: nnz(A==B) Ideally, you should be taking into account differences arising from floating point precision by defi...

alrededor de 13 años hace | 0

Respondida
A function that calculates how many entries' value and location are the same between two matrices
Shouldn't the answer be 4? The 2's at location(3,1) also match.

alrededor de 13 años hace | 0

Respondida
How to evaluate image segmentation results?
Two of the standard metrics used for image segmentation are dice overlap coefficient and jaccard index. These metrics measure th...

alrededor de 13 años hace | 1

Respondida
Matching an image with a database
BoF seems like a reasonable approach to this problem. Usually, you are working with a much larger set of images than just 5. Cru...

alrededor de 13 años hace | 3

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