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Pawel Tokarczuk


Imperial College

Last seen: 4 years 前 |  自 2013 起处于活动状态

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Professional Interests: Image processing

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How do I modify a "drawassisted" ROI with a "wait" function ?
To answer my own question: The wait method which was missing in 2018b is present in 2020a, so I can get the behaviour I want....

4 years 前 | 0

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How do I modify a "drawassisted" ROI with a "wait" function ?
I want to implement freehand and assisted manual segmentation in a GUIDE GUI using MATLAB version 2018b or 2020a. In the atta...

4 years 前 | 1 个回答 | 0

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Imellipse ROI not resizing in MATLAB GUIDE (2017b)
I want to select a circular ROI in a set of image axes in a GUIDE GUI. The following test code works as expected: %% Clear the...

5 years 前 | 1 个回答 | 0

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已回答
Imellipse ROI not resizing in MATLAB GUIDE (2017b)
To answer my own question: the solution is to use MATLAB 2015aSP1 rather than 2017b. This is not the first time that problems w...

5 years 前 | 0

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Re-using image co-registration parameters
I have some velocity-encoded MR images (magnitude and phase) which I would like to co-register. The magnitudes are clean, and al...

6 years 前 | 1 个回答 | 0

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Defining a 4d double
I think what you need is something like: Velocity = zeros([NROWS, NCOLS, NTIMES], 'double'); [ X, Y ] = meshgrid(0:N...

7 years 前 | 0

已回答
How do I test if a matrix is unitary?
Your notation suggests that what you need is the matrix exponential: U = expm(i*H); This is not the same thing (in gener...

8 years 前 | 1

已回答
Strange colormap behaviour in MATLAB 2013b
Many thanks, that's clear and complete. I hadn't realized that 'jet' could take a parameter - I assumed it was a built-in funct...

10 years 前 | 0

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Strange colormap behaviour in MATLAB 2013b
I want to use a colormap in a MATLAB GUI to review a large number of images from an earlier analysis. I have tested the followin...

10 years 前 | 2 个回答 | 0

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I have a .jpg file of an ECG or EKG report. How can i read the plots and extract the PQRST from the graph?
You don't need to use MATLAB. Try: http://sourceforge.net/projects/digitizer/files/Engauge%20Digitizer/digitizer-5.1/ If 5...

11 years 前 | 0