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| bio | website | |
|---|---|---|
| location | Munich, Germany | |
| age | 35 | |
| visits | member for | 1 year, 4 months |
| seen | 11 hours ago | |
| stats | profile views | 467 |
I work at a small mechanical engineering company, where I develop software and image processing algorithms for camera-based inspection machines.
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Jun 14 |
awarded | Nice Answer |
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Jun 14 |
comment |
Digital filter of image in Fourier space @Andrei: It's weird: if I import the data from Pastebin, and look at the fourier transform, it still doesn't look nearly as smooth and artifact-free as the one in your question. |
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Jun 14 |
comment |
Find radii of concentric circles in image The coordinate conversion was off by one. Fixed it. I love MMA for image processing, but the distinction between indices and coordinates is ugly. Especially as there is no built-in function to convert them. |
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Jun 14 |
revised |
Find radii of concentric circles in image Off-by-one error |
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Jun 14 |
comment |
Find radii of concentric circles in image @cormullion: I'm not 100% sure. Since the center is a least squares estimate using all gradients in the image, the error could be due to gradients that don't point towards the center. Or maybe my index -> coordinate conversion is off by one? |
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Jun 14 |
answered | Find radii of concentric circles in image |
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Jun 13 |
comment |
Digital filter of image in Fourier space @Andrei: Could you upload the raw images (without ticks, legend)? In the cropped image, the Fourier transform contains all kinds of artifacts. |
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Jun 13 |
answered | Digital filter of image in Fourier space |
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Jun 10 |
comment |
Can one identify the design patterns of Mathematica? In the age of the dinosaur, this would have been called a "function pointer". It's an advanced concept, but not uncommon and definitely not "a very bad thing". For instance C's qsort function took a function pointer for element comparison. |
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May 24 |
comment |
“Save Graphic As…” does not include plot legends If you want to export it as a raster image, you can always use Rasterize. |
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May 23 |
awarded | Good Answer |
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May 22 |
awarded | Nice Answer |
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May 21 |
answered | How can I detect an ellipse in a photo? |
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May 21 |
comment |
How can I detect an ellipse in a photo? I'm not sure about the hough transform: an ellipse has 5 degrees of freedom, that's a huge parameter space to update for each point. |
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May 15 |
awarded | Good Answer |
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May 15 |
awarded | Nice Answer |
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May 14 |
revised |
Finding areas of beings in microscopic image Fixed another bug... |
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May 14 |
revised |
Finding areas of beings in microscopic image added 221 characters in body |
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May 14 |
revised |
Finding areas of beings in microscopic image added 63 characters in body |
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May 14 |
answered | Finding areas of beings in microscopic image |
