11,066 reputation
22454
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location Munich, Germany
age 36
visits member for 2 years, 10 months
seen 7 hours ago

I work at a small mechanical engineering company, where I develop software and image processing algorithms for camera-based inspection machines.


Sep
13
awarded  Nice Answer
Sep
5
answered How to understand the process of ListCorrelate when it in two-dimensional condition?
Sep
5
comment Compose one image over another
You can use ImageApply to apply a function like Min pixel-wise. Or turn the images to normal arrays using ImageData and use MapThread.
Sep
4
answered Are there ways to create local variables analogous to a local variable in C++ and other languages?
Sep
4
comment Are there ways to create local variables analogous to a local variable in C++ and other languages?
Maybe I'm missing something. Isn't that exactly what Module does?
Aug
31
comment ImageTransformation: polar to cartesian
@paw: The black dot is there because the polar image contains no data for that location. If you use 0 in the DataRange of the inverse transform, but used 1 in the PlotRange of the polar transform, the result will be slightly skewed (by 1 pixel at the center). You can either use 0 for both, or use Padding -> "Fixed" to get rid of the black dot in the center.
Aug
30
answered ImageTransformation: polar to cartesian
Aug
27
answered Alternatives to Append/AppendTo for generating a list in an interactive DynamicModule?
Aug
20
answered How to understand the usage of Inner and Outer figuratively?
Aug
16
awarded  Nice Question
Aug
12
comment How to translate and scale an image via ImageTransformation
You could just use Composition[TranslationTransform[...], ScalingTransform[...], RotationTransform[...] ] to create a complex transformation from simple ones
Aug
1
accepted Dynamic with RegionNearest keeps one CPU core at 100% - Is this a bug?
Aug
1
accepted Can you make the new “Choose color scheme” helper larger?
Aug
1
accepted How can I find out where a key binding is coming from?
Aug
1
accepted How can I efficiently ArrayFlatten a matrix of sparse matrices?
Aug
1
asked How can I efficiently ArrayFlatten a matrix of sparse matrices?
Jul
30
revised Automatically lining up two images that have some common elements
added 139 characters in body
Jul
30
comment Automatically lining up two images that have some common elements
@Mr.Wizard: ImageTransformation can wrap. If you have per-pixel offsets (as you would have with many optical flow or non-parametric registration algorithms), this question might be useful: mathematica.stackexchange.com/questions/31274/…
Jul
29
answered Automatically lining up two images that have some common elements
Jul
26
answered Fast method to select matrix elements based on a vector of positions