Rank: 143 based on 651 downloads (last 30 days) and 12 files submitted
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Ohad Gal

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B.Sc in Electrical Engineering (signal processing, telecommunication and optics),
M.Sc in Electrical Engineering - Thesis in Optical fiber telecommunication


 

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Files Posted by Ohad Gal View all
Updated   File Tags Downloads
(last 30 days)
Comments Rating
07 Nov 2005 Screenshot browseforfolder Enhanced dialog box for folder browsing. Author: Ohad Gal gui tools, example, ui, browse, folder, utilities 9 1
  • 3.0
3.0 | 1 rating
22 Nov 2004 Screenshot updownsample up/down sample an input matrix using the fourier domain. Author: Ohad Gal geometric transformat..., image registration, upsample downsample f... 19 5
  • 4.71429
4.7 | 7 ratings
29 Apr 2004 Screenshot A Collection of Fitting Functions A collection of fitting functions for various distributions. Author: Ohad Gal approximation, interpolation, fit, normal, maxwell, rayleigh 72 18
  • 4.38889
4.4 | 18 ratings
06 Jan 2004 JPEG Compression An example for jpeg compression and the restoration. Author: Ohad Gal compression, jpeg, function, image processing, dct transform 181 54
  • 4.28358
4.3 | 67 ratings
30 Oct 2003 get_non_default_value Finds the fields (of a UI element) with the non-default values. Author: Ohad Gal gui tools, example, default, value, graphic, ui 10 0
Comments and Ratings on Ohad Gal's Files View all
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13 Nov 2014 JPEG Compression An example for jpeg compression and the restoration. Author: Ohad Gal HUANG

21 Sep 2014 updownsample up/down sample an input matrix using the fourier domain. Author: Ohad Gal Mikhail Konnik

@ David Felguera

Well, technically speaking the code is correct - in terms of what _exactly_ is it doing. The code claims to do downSAMPLING, which is just throwing away specified frequencies. Unlike the _decimation_, which uses the low-pass filtering to mitigate the downsampling effects (slower and more complicated).

The effect that you experiencing in this example is called ringing, and this exactly what happens in up/downsampling without filtering.

21 Sep 2014 updownsample up/down sample an input matrix using the fourier domain. Author: Ohad Gal Mikhail Konnik

26 Aug 2014 fit_ellipse Find the best fit for an ellipse using a given set of points (a closed contour). Author: Ohad Gal Lucy

26 Aug 2014 fit_ellipse Find the best fit for an ellipse using a given set of points (a closed contour). Author: Ohad Gal Lucy

I can't plot the ellipse. Could please anyone give me an explanation on how to use the code? Thanks

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