A log-Gabor pyramid is an oriented multiresolution scheme for images inspired by biology.
Project description
[![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/bicv/LogGabor/master) [![PyPI version](https://badge.fury.io/py/LogGabor.svg)](https://badge.fury.io/py/LogGabor) [![Research software impact](http://depsy.org/api/package/pypi/LogGabor/badge.svg)](http://depsy.org/package/python/LogGabor)
LogGabor
A log-Gabor pyramid is an oriented multiresolution scheme for images inspired by biology.
Examples and documentation is available @ https://pythonhosted.org/LogGabor/
![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)
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 ϕ=1+5√2. 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 ϕ^2 (that is ϕ+1) as the down-scaling factor so that the pixelwise resolution of the pyramid images correspond across scales.
This package provides with a python implementation.
More information is available @ http://nbviewer.ipython.org/github/bicv/LogGabor/blob/master/LogGabor.ipynb
![ScreenShot ](http://invibe.net/cgi-bin/index.cgi/Figures/Perrinet08spie/FigureDeux?action=AttachFile&do=get&target=GoldenPyramid.png)
The Golden Laplacian Pyramid. To represent the edges of the image at different levels, we may use a simple recursive approach constructing progressively a set of images of decreasing sizes, from a base to the summit of a pyramid (see http://invibe.net/LaurentPerrinet/Publications/Perrinet15bicv for more details).
Project details
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
Built Distribution
File details
Details for the file LogGabor-20171205.tar.gz
.
File metadata
- Download URL: LogGabor-20171205.tar.gz
- Upload date:
- Size: 28.0 MB
- Tags: Source
- Uploaded using Trusted Publishing? No
File hashes
Algorithm | Hash digest | |
---|---|---|
SHA256 | 7cb77b53b96cd0ca982b57940b00421c5c79be6191b6d08a1cf0732ac1dc2249 |
|
MD5 | 27eb5d085386e150f774b58caea8b89b |
|
BLAKE2b-256 | 806624e3a2c1a18f27ad9963458cc40baf7554cd07eba66d0e0c214f6793f0e4 |
Provenance
File details
Details for the file LogGabor-20171205-py3-none-any.whl
.
File metadata
- Download URL: LogGabor-20171205-py3-none-any.whl
- Upload date:
- Size: 10.0 kB
- Tags: Python 3
- Uploaded using Trusted Publishing? No
File hashes
Algorithm | Hash digest | |
---|---|---|
SHA256 | c8a1f901c164e0d57d1fbb82c114552dd122ac06b325baae0c571c51e6f541b1 |
|
MD5 | b155835695873fa5572c9f159b5c1da6 |
|
BLAKE2b-256 | cae255bb5ba67e4ce51749b7ec34ce0318c5ca2363f4f754ea56fdfbd2fe88b1 |