{ "info": { "author": "Laurent Perrinet INT - CNRS", "author_email": "Laurent.Perrinet@univ-amu.fr", "bugtrack_url": null, "classifiers": [ "Development Status :: 3 - Alpha", "Environment :: Console", "License :: OSI Approved :: GNU General Public License (GPL)", "Operating System :: POSIX", "Programming Language :: Python :: 2", "Programming Language :: Python :: 2.7", "Programming Language :: Python :: 3", "Programming Language :: Python :: 3.5", "Topic :: Scientific/Engineering", "Topic :: Utilities" ], "description": "[![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/bicv/LogGabor/master)\n[![PyPI version](https://badge.fury.io/py/LogGabor.svg)](https://badge.fury.io/py/LogGabor)\n[![Research software impact](http://depsy.org/api/package/pypi/LogGabor/badge.svg)](http://depsy.org/package/python/LogGabor)\n\nLogGabor\n========\n\nA log-Gabor pyramid is an oriented multiresolution scheme for images inspired by biology.\n\nExamples and documentation is available @ https://pythonhosted.org/LogGabor/\n\n ![ScreenShot of the implementation provided in http://invibe.net/LaurentPerrinet/Publications/Fischer07cv](http://invibe.net/cgi-bin/index.cgi/Figures/Fischer07cv/FigureUn?action=AttachFile&do=get&target=loggabor.png)\n\n Log-Gabor filters. To represent the edges of the image at different levels and orientations, we use a multi-scale approach constructing a set of filters of different scales and according to oriented log-Gabor filters. This is represented here by stacking images on a Golden Rectangle Perrinet (2008), that is where the aspect ratio is the golden section \u03d5=1+5\u221a2. The level represents coefficients' amplitude, hue corresponds to orientation. We present here the base image on the left and the successive levels of the pyramid in a clockwise fashion (for clarity, we stopped at level 8). Note that here we also use \u03d5^2 (that is \u03d5+1) as the down-scaling factor so that the pixelwise resolution of the pyramid images correspond across scales.\n\nThis package provides with a python implementation.\n\nMore information is available @ http://nbviewer.ipython.org/github/bicv/LogGabor/blob/master/LogGabor.ipynb\n\n ![ScreenShot ](http://invibe.net/cgi-bin/index.cgi/Figures/Perrinet08spie/FigureDeux?action=AttachFile&do=get&target=GoldenPyramid.png)\n\n The Golden Laplacian Pyramid. 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