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how can i include information on captured image
Here's one way to do it: %read the image im = imread('cameraman.tif'); % display it imshow(im); % add t...

más de 12 años hace | 0

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Image recognition using MATLAB
You could use the 2-D correlation coefficient between the image you send and the images in the training set and select the one w...

más de 12 años hace | 0

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How to plot values in a grid manner so as to form an image?
Try this: im = squeeze(mzSpecificData); image(im); %or imshow(im);

más de 12 años hace | 1

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classifier Knn in matlab
Use the <http://www.mathworks.com/help/bioinfo/ref/knnclassify.html knnclassify> function from the Bioinformatics Toolbox.

más de 12 años hace | 0

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how to extract the bounding box area as segmented object from video frame?...I have been trying imcrop but the rectangle cropped out is not as same as bbox rectangle.
It seems to work for me...The rectangle specification provided by the vision.BlobAnalysis object is the same as that required by...

más de 12 años hace | 0

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How to perform pixel-by-pixel matching to check whether a query image exist in the template database or not.
Well, if you expect the images to be exactly the same, you can do this: im1 = imread('http://imageshack.us/a/img19/2367/zst...

más de 12 años hace | 0

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tracking correlation coefficient (linear and non-linear) between two images
You're probably making a mistake with the normalization. Here's an example that doesn't change the correlation coefficient: ...

casi 13 años hace | 0

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dealing with values of cells
Why do you need to divide it into blocks? Just do this: matrix = matrix'; matrix(1:3:end) = 4*matrix(1:3:end); matri...

casi 13 años hace | 0

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Need 'ADAPTHISTEQ' implementation help
The reference you're citing is from a book not a conference/journal paper. You can borrow it from a library.

casi 13 años hace | 0

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Can Computer Vision track an object by color?
SURF features don't capture much color information at all. You could use color histograms in addition to SURF features to track ...

casi 13 años hace | 0

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Plotting Matrices of Coordiantes
For the matrices X and Y, you can plot as follows: plot(X(:),Y(:),'r+') You just convert the matrices to vectors and use...

casi 13 años hace | 0

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Images and rotation angles
Another option is to register the images using <http://www.mathworks.com/help/images/ref/imregister.html imregister>. If you kno...

casi 13 años hace | 0

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working on image compression project.........
Here's what Google suggests: <http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5460757&url=http%3A%2F%2Fieeexplore.ieee.or...

casi 13 años hace | 0

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How to know the best "Number of Iterations" when using imregister?
Read this for some general tips/advice about using imregister. <http://www.mathworks.com/help/images/registering-multimodal-m...

casi 13 años hace | 0

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mark several line of code as comment
If you want a comment block you could do this: %{ ... CODE THAT SHOULDN'T RUN ... ... %} Note that th...

casi 13 años hace | 1

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How to perform an image classification ?
There are a bunch of different feature extraction approaches that are tied to what kind of images you have and the kind of probl...

casi 13 años hace | 0

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How do I remove lines atached to each point in the STEM plot in MATLAB?
A stem plot is meant to have those vertical lines, that's why it is a 'stem'. You could just use plot. For example, inste...

casi 13 años hace | 1

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What is the simplest most effective way to motion detect using webcams ?
This one might be relevant to you: <http://www.mathworks.com/help/vision/examples/scene-change-detection.html>

casi 13 años hace | 0

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How does matchFeatures Work?
matchFeatures implements a generic feature matching algorithm. Feature matching for stereo is a much more constrained problem, w...

casi 13 años hace | 1

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How to create "Trained cascade classification model" like Frontal Face (CART), Upper Body
Here's a document about just that: <http://www.mathworks.com/help/vision/ug/train-a-cascade-object-detector.html>

casi 13 años hace | 0

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face detector learning parameters?
Doesn't look like you can. The only parameters available are post-learning parameters that control detections like MinSize, MaxS...

casi 13 años hace | 0

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Why matchFeatures gives two different answers?
They are not expected to share the same length. The first tries to find the best matches for features1 in features2 and the seco...

casi 13 años hace | 1

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how to get gradient of an image
Try this: [~,~,Gy,Gx] = edge(imread('cameraman.tif'),'sobel');

casi 13 años hace | 1

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Filling a Bounding Box with zeros
Why does this not work? BW2(642:642+56,1:1+83) = 0; Give us something more than "Doesn't replace the region with zeros"....

casi 13 años hace | 0

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How to I imread and imshow a stack of tiff images?
Use the montage function <http://www.mathworks.com/help/images/ref/montage.html>

casi 13 años hace | 0

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Hyperspectral image not displaying correctly
Try the decorrstretch function. The documentation is here: <http://www.mathworks.com/help/images/ref/decorrstretch.html> T...

casi 13 años hace | 0

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plot the slope of a curve in the same plot
Add this at the end of your code snippet: dy = gradient(y,.01); hold on; plot(x,dy,'r');

casi 13 años hace | 0

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For detecting eyes i have used Circular Hough Transform method to detect circles in the face image.
Post an image where you see some of these problems and maybe someone can help. One suggestion is to restrict the radius range...

casi 13 años hace | 0

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2 different y axis plot using timeseries ?
If you're working with timeseries objects, this should be quite easy. Suppose you're timeseries objects are tsData1 and...

casi 13 años hace | 0

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how to index a matrix by using a index matrix that has same size?
If A is your original matrix and idx is the matrix of indices, you can use logical indexing: A(idx). Here's an example: ...

casi 13 años hace | 0