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Comparing images
The results you are getting indicate that you are working with 8-bit unsigned integer data. a = uint8(10*rand(3,3)) b = ...

más de 13 años hace | 1

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How to rotate an image using interpolation?
If you want to apply pure rotation to an image, there is a specific Image Processing Toolbox function imrotate that will do this...

más de 13 años hace | 0

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regarding cropping a polygon out of an image
Also, if you DO intend to apply a polygon mask to an image, there are easier ways of doing it. The function roipoly is designed ...

más de 13 años hace | 0

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How do I get a colormap for my image?
The metadata associated with your image is indicating that your data is already an RGB image with separate RGB planes: ...

más de 13 años hace | 0

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About "projective" command
Yes, The functions tformfwd and tforminv are what you are looking for. help tformfwd help tforminv You can calcula...

más de 13 años hace | 0

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Image is too big to fit on screen!
The "thin dark line" that was displayed sounds like what happens when you accidentally display image data that has been shaped t...

más de 13 años hace | 0

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imshow in GUI too slow
If performance is critical, you would do well to refresh the images via setting the 'CData' of each existing image handle rather...

casi 14 años hace | 3

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Computing eigenvector of eigensystem
Check out the documentation for the eig function. doc eig

casi 14 años hace | 1

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Accessing object B properties outisde of object A's getter method
Sounds like your class objA should define a property that holds the object(s) you need to define your get operation. classd...

casi 14 años hace | 0

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how to register a medical image in matlab
Siva, If you are using R2012a, you might also check out the new function imregister. This function can be used to perform aut...

casi 14 años hace | 0

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sum of absolute differences
If you have the Image Processing Toolbox, consider looking at the function imabsdiff as a starting point for computing the absol...

casi 14 años hace | 1

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Difference between imresize & resizem
David, Both functions will perform the resize operation you are interested in. resizem is a Mapping Toolbox function. imresiz...

casi 14 años hace | 0

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drawing bounding box from corne rpoints
How about: imshow('pout.tif'); points = 200*rand(50,2); hold on plot(points(:,1),points(:,2),'r*'); % Now use min/m...

casi 14 años hace | 0

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separating object and bacground with imsubtract
I just wanted to add, as whenever this issue comes up, that Image Analyst's solution of using the MATLAB minus operator instead ...

casi 14 años hace | 0

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How does getPosition work in impoly?
Regarding "updating the polygon position". I'm still not fully understanding the question, but Matt has already provided good an...

alrededor de 14 años hace | 1

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extractFeatures, reference to "Block"-method
I'm not sure about where to find a good reference at the moment, if you're looking for a paper, but if you look in the reference...

alrededor de 14 años hace | 0

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image format question
When you say that "a new window came up, but no image was displayed", the most likely cause of this is that the 'DisplayRange' p...

alrededor de 14 años hace | 0

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selective bwdist()
You all have seen Steve's blog post, so you know the answer. But, for anyone who comes to this post with a similar question, we ...

alrededor de 14 años hace | 1

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creating an image using a matrix
The createMask method of the ROI tools was designed for the case in which you want to generate a binary image that is one where ...

alrededor de 14 años hace | 1

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Problem Matlab Ubuntu
To get an answer to your question, you should set a breakpoint at the line where you are calling imread. Examine the full path a...

alrededor de 14 años hace | 0

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job timer
Check out the MATLAB function waitbar: http://www.mathworks.com/help/techdoc/ref/waitbar.html

alrededor de 14 años hace | 0

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what is the difference between conv2, filter2 and imfilter..?
Hi Jigar, Good question, and everyone else has provided a lot of great information. I'd like to add a bit, hopefully it'll b...

más de 14 años hace | 4

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error using imsubtract
Megah, I'd also recommend that you use the MATLAB minus operator instead of imsubtract to perform elementwise subtraction on ...

más de 14 años hace | 1

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cropping
Chitra, If you have the Image Processing Toolbox, you can also use the function imcrop: http://www.mathworks.com/help/tool...

más de 14 años hace | 0

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Multiple Colormaps, freezeColors won't work
Hi, The issue here is that in the MATLAB graphics system, the 'colormap' is a property of the figure, meaning that you can only...

más de 14 años hace | 0

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get position of imfreehand
Hi Mary, Unfortunately, the current design of imfreehand doesn't allow programmatic placement of the tool given a set of vertic...

más de 14 años hace | 1

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getting the variable size value
[R,C] = size(A); doc size

más de 14 años hace | 0

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iptPointerManager significantly slows program down
Hi Jonas, Without having a complete example of your implementation of a draggable line, this is tough to answer, but I'd lik...

más de 14 años hace | 0

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Image processing help. Multiplication of Images gives different results at Unit16, unit 32, unit 8.
Hi Vijay, Walter's answer is accurate. I just wanted to add that since you have the Image Processing Toolbox, you might look ...

más de 14 años hace | 0

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fill inside a boundary
Hi Azarm, A good way to solve this problem will be to obtain a logical image that represents the boundaries of the first fram...

más de 14 años hace | 0

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