Community Profile



Last seen: 4 days ago
6 total contributions since 2014

Just an amateur photographer playing with pictures and data
Professional Interests: Image Processing and Data Fitting


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FFT with normalized spatial frequency for image sensor MTF
Hi Ben, You are off by a factor of 10 because there are 10 samples in one of your 'pixels'. The result of the FT is in cycles/...

1 year ago | 0

How to perform quadratic optimization
The physical Edge Spread Function is monotonic in normal conditions, so the undershoots/overshoots are due to processing (demosa...

1 year ago | 0

how to design Siemens star pattern like on the image?
This way you get a sinusoidal as well as a binary Siemens star, don't need the image processing toolbox and it's more intuitive:...

4 years ago | 1

how to design Siemens star pattern like on the image?
This works for a raw binary Siemens Star. It is raw in the sense that there is no anti-aliasing so the edges are truly binary. ...

4 years ago | 0


Multi Struct to Matrix
From Structs of Arrays: s(1).x = [1 2 3; 4 5 6; 7 8 9]; s(2).x = [11 12 13; 14 15 16; 17 18 19]; I would like t...

5 years ago | 2 answers | 2




How to get xlsread, xlswrite, actxserver to find, read and write to/from Excel 2010?
Matlab newbie. Lots of questions around about why Matlab no longer talks to Excel 2010 - but no satisfactory answers as to how ...

6 years ago | 1 answer | 0