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Need Help Regarding Log-Map of Images
The following link is a good starting point for an example of a log-polar image resampler in MATLAB. You appear to have already ...

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how to registering an Image?
After looking again, I can see the features that correspond in these two images. If you don't have a lot of images like these to...

mehr als 12 Jahre vor | 1

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how to registering an Image?
Looking at these images, I see at least two potential problems: 1) Visually, it's tough for me to see where the regions of al...

mehr als 12 Jahre vor | 2

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Apply transform on an image at lower resolution onto that of higher resolution
You have an estimate for rotation, scale, and translation. Ideally, the rotation and scale estimates that you obtain at lower sc...

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How can i detect circle in a eye image? Mainly the iris region.
You should start with imfindcircles and see if that works: http://www.mathworks.com/help/images/ref/imfindcircles.html

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Algorithm of Bicubic Interpolation
The algorithm is described in the following reference. % "Cubic Convolution Interpolation for Digital Image % Processing", R...

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Using cell arrays and find. Undefined function 'le' for input arguments of type 'cell'.
LE is the less than or equal to operator in the statement subdewfinal{i}<=dew_final1{i} These items have still not been ...

mehr als 12 Jahre vor | 0

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How do I create a sub image of a larger image?
In addition to this demo, you might also take a look at roipoly. You can use the logical image returned by roipoly as a mask. h...

mehr als 12 Jahre vor | 0

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How to change the pixel value of rgb unit8 image to NaN or black
I think we would need some clarifying information to answer this question. What does it mean to have a pixel value "greater" ...

mehr als 12 Jahre vor | 0

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Why can't MATLAB resize an image nicely?
Would you please provide some code as to how you are displaying, resizing, and exporting the data from MATLAB so that we can bet...

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3D image registration for CT to Laser
imregister/imregtform were enhanced to support volumetric registration a few releases ago, for anyone just now coming to this th...

mehr als 12 Jahre vor | 0

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Are there any documents about imregister?
The following block diagram from the doc is a good overview of the basic algorithmic approach: http://www.mathworks.com/help/...

mehr als 12 Jahre vor | 2

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How does imregister work?
Marina, Thank you the feedback. The documentation for imregtform/imregister could be improved to include more information abo...

fast 13 Jahre vor | 1

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Finding a specific edge in multiple images?
Lea, I will look into this a bit, I'm busy with other things at the moment. I do have a couple other questions for you though: ...

fast 13 Jahre vor | 0

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Question on Image transformation
Hi Mubeen, If you have R2013a, you should look at the class projective2d and the function imwarp. http://www.mathworks.c...

fast 13 Jahre vor | 1

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imtransform, tracking a projection destination of some pixel
I cannot tell from your code example what you are trying to accomplish. It's also not clear from your question how the Auto-Scal...

fast 13 Jahre vor | 1

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Performance Issue of 'imrotate' in double precision mode
Hi Dehuan, As Teja pointed out, IMROTATE was hardware optimized for double-precision inputs in R2012b. If you are able to upd...

fast 13 Jahre vor | 0

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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

fast 13 Jahre vor

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Describe angulated slices using imref3d
Hi Wouter, The functions imref2d and imref3d are currently limited to rectilinear referencing. In your case, it sounds like t...

fast 13 Jahre vor | 1

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imregister function and affine transformation
As of R2013a, users who want access to the geometric transformation estimate computed by imregister can call the function imregt...

fast 13 Jahre vor | 0

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Can imregister provide transformation details on the registeration of the moving image?
As of R2013a, users who want access to the geometric transformation estimate computed by |imregister| can call the function |imr...

fast 13 Jahre vor | 2

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What is the difference between IMWARP and IMTRANSFORM?
The new function |imwarp| is part of a redesign of workflows involving image registration, geometric transformations, and spatia...

fast 13 Jahre vor | 3

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imregister function and affine transformation
You can use the 'DisplayOptimization' Name/Value pair to get a textual display of the transformation estimate. There is no way c...

etwa 13 Jahre vor | 0

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How to get the Region of Interest using impoly?
Look at the createMask method of impoly. For example. figure, imshow('pout.tif'); % Place polygon interactively. h...

mehr als 13 Jahre vor | 1

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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

mehr als 13 Jahre vor

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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

mehr als 13 Jahre vor

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Is my wife right?
Regardless of input, output the string 'yes'.

mehr als 13 Jahre vor

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

mehr als 13 Jahre vor

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Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

mehr als 13 Jahre vor

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how to save image in axes gui?
Image Analyst's answer is great. I would only add that if the image in your GUIDE GUI has been somehow modified from the version...

mehr als 13 Jahre vor | 1