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# Brian

Last seen: 2 years ago Active since 2014

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How do I recover continous signal from descrete measurements?
I have a slowly varying signal that is always increasing or decreasing in value. I measure this with a descrete device (both sig...

2 years ago | 1 answer | 0

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Question

How can I index a 3D array like A(n,m,:) and get the result as a 1D array?
Hi Assume we have a 3D array like this (image from the manual): In python/numpy I can something similar to B = A(2,3,:...

3 years ago | 1 answer | 0

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Question

Extract rotations about all three axes from 2d projective transformation
Hi I have estimated a 2-D projective transformation matrix https://se.mathworks.com/help/images/ref/projective2d.html using ht...

3 years ago | 0 answers | 0

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Question

Cannot set quiver head size bigger than 1/3 of the length of the arrow.
Hi, I would like to control the arrow head for my quiver arrow plots. It does not seem like I can not set quiver head size big...

4 years ago | 1 answer | 1

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Calculating coordinates for Inner / transverse common tangent points
I have made a pragmatic solution to do what is asked for based on these sources: https://en.wikipedia.org/wiki/Homothetic_cent...

4 years ago | 1

Question

Gigecam(), high cpu load after first snapshot().
Hi I am acquiring images from two different point grey 'Blackfly BFLY-PGE-50H5M' network cameras. The cameras are triggered ...

5 years ago | 1 answer | 1

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Question

control checkerboard pattern size on printed paper
Hi I would like to print the following checkerboard to a pdf file such that it has the correct given dimension on the A4 she...

6 years ago | 0 answers | 0

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Question

Documentation for detectCheckerboardPoints and use of references?
Hi I am using the function detectCheckerboardPoints and I would like to know if detectCheckerboardPoints is a direct implementa...

6 years ago | 0 answers | 0

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Question

How do morphological operations work at/near image baundaries?
Hi Hi, I want to track the edge of a feature in an image. The feature extends from the lower boundary to the top boundary of...

7 years ago | 1 answer | 0

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Question

DetectCheckerboardPoints problem - finds wrong corner positions
Hi I am trying to calibrate a camera. I have used the approach described in this example: openExample('vision/CorrectAnImageF...

7 years ago | 1 answer | 0

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Question

Adding drawn greyscale images on top of each other
Hi I would like to draw a figure -> save it as an greyscale image and put it on top of another image. When I plot combined i...

7 years ago | 1 answer | 0

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How do I make a video of a graph with axes and axes labels?
Hi I found out how to solve it. The line frame = getframe; is changed to frame = getframe(gcf); close all; clear all; ...

8 years ago | 1

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Question

How do I make a video of a graph with axes and axes labels?
Hi I would like to make the video of a graph which includes the axes labels. It seems that it by default does not. Can someo...

8 years ago | 1 answer | 1

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Question

Make keyboard shortcut for a piece of code.
Hi I am editing a lot of subfunction which are located in different .m files than the one (main.m) they are called from. This ...

8 years ago | 0 answers | 0