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why I have Nan value in resampling image?
Imresize, like all geometric transformation operations, uses resampling to define output values that do not lie at integral pixe...

environ 11 ans il y a | 0

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i hav 384 images.using a for loop i read an img& apply transform on it & store the result in variable named res1 & next i read 2nd img & apply transform on it & store result in variable res2 &so on for rest images.how do i implement this in for loop
This concept of storing each result in a separate named variable is not very "MATLAB-like". It would be more in model to represe...

environ 11 ans il y a | 0

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why I have Nan value in resampling image?
This is the second post I've seen recently on imresample. Is the reason you are using this function that you don't have the Imag...

environ 11 ans il y a | 1

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How can I add vector arrows to an image?
help quiver

environ 11 ans il y a | 0

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Interpolating Data - Basic Question
help interp1 help griddedInterpolant

environ 11 ans il y a | 0

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3D Rotation around generic axis
The Image Processing Toolbox uses a different convention for the transformation matrix than the one you are expecting. This is d...

environ 11 ans il y a | 0

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Spatial Referencing: fitgeotrans not defined
Maketform/imtransform will work if you don't have 13b or later.

environ 11 ans il y a | 0

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How can I resample an image in matlab?
The MATLAB interpolation functions require that the inputs be floating point, since interpolation is a floating point operation....

plus de 11 ans il y a | 0

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Find a path between two points
Check out bwdistgeodesic/greythresh, as shown in Steve's post: http://blogs.mathworks.com/steve/2011/12/13/exploring-shortest...

plus de 11 ans il y a | 1

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3D interpolation Dicom data
If you have the Image Processing Toolbox, I would make this problem easier on yourself by using imwarp and possibily imref3d. Yo...

plus de 11 ans il y a | 0

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Error using imwarp (line 33)
In addition to the error message, can you please provide the output of: which -all affine2d

plus de 11 ans il y a | 0

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Image Registration step by step
I would just add a few things: 1) Can you elaborate on what kind of transform model you want to use instead of rigid? Are you...

plus de 11 ans il y a | 0

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i have made center image from left ,right and depth images of center image.but now there are some holes in center image.how to fixed these holes with interpolation
I'm going to assume from these artifacts that you are using a "forward mapping" algorithm to map the input images into the outpu...

plus de 11 ans il y a | 1

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Is imref3d new to 2013a?
Yes, imref3d was introduced to the Image Processing Toolbox in R2013a. http://www.mathworks.com/help/images/release-notes.htm...

plus de 11 ans il y a | 1

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how can I perform interpolation between images
This family of algorithms is known as super resolution. I suggest you review the literature. For example: http://users.soe.uc...

plus de 11 ans il y a | 0

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How to unwrap the circle?
Use a polar transformation with the center of the transformation set to the center of the circle (roughly [161, 172]). I like...

plus de 11 ans il y a | 0

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Does different image parameters affect image registration?
Hi Colleen, I would recommend you take a look at the following example that ships with the Image Processing Toolbox: http://w...

plus de 11 ans il y a | 1

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Problem in rotation detection for the angles less than 1 degree using Fourier-mellin transform
What angular resolution are you using during the log-polar transformation on each of your images? This would also impact the acc...

plus de 11 ans il y a | 0

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Problem with "imregister" function
Because imregister works with volumetric input as well as with planar 2-D images, there is ambiguity with multi-channel 2-D imag...

plus de 11 ans il y a | 5

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Does an AMD 4-core processor runs better than an Intel dual core processor for parallel computing
In general, your parallel algorithm will scale in performance with number of threads. Keep in mind though that some MATLAB f...

plus de 11 ans il y a | 0

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How to substitute "getimage" function?
The point of the previous comments is that the 'CData' property of the HG image object is what you want to query. The use of thi...

plus de 11 ans il y a | 0

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How does imregister work?
Hi Manu, During the iterative solution of the registration, imregister uses bilinear optimization. If you want to change the ...

plus de 11 ans il y a | 0

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correct operation of the matlab imrect function
If you need to use imrect, then you will need to use functions like floor/ceil/round to move from a continuous representation of...

plus de 11 ans il y a | 0

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User input: selecting pixel (point) in a video
Have you tried using impoint as an interactive point selection tool?

plus de 11 ans il y a | 0

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changing "Window width" and "Window level"
You should take a look at the imcontrast function.

plus de 11 ans il y a | 0

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correct operation of the matlab imrect function
It looks like you are trying to implement a cropping tool. Have you looked at the Image Processing Toolbox function imcrop: h...

plus de 11 ans il y a | 0

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How to visualize fiber orientation tensors
You might also want to take a look at this additional File Exchange submission for DTI visualization if you want a different fla...

plus de 11 ans il y a | 0

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How does the function "imresize" work in details ?
I would take at the series on spatial transformations from Steve on Image Processing, starting with Terminology and Notation: ...

plus de 11 ans il y a | 7

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Converting an image from Spherical coordinate system to cartesian coordinate systems
In order to map from a spherical coordinate system, you are going to need to know the limits of Rho that exist in your dataset b...

plus de 11 ans il y a | 0

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Is there any robust solution to match two images and find the percentage of match between them in MATLAB ?
When solving registration problems, there is typically not any one algorithm that will be robust 100% of the time. That said, yo...

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