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Project Description

ENtropy-based IMage border Detection Algorithm: finds out if your image has borders or whitespaces around and helps you to trim border providing whitespace offsets for every side of a picture.

Supports GIF border detection and its cropping.

Algorithm (simplified)

For each side of the image starting from top, rotating image counterclockwise to keep side of interest on top:

  • Get upper block 25% of image height
  • Get lower block with the same height as the upper one
  • Calculate entropy for both blocks and their difference
  • Make upper block 1px less
  • Repeat from p.2 until we hit image edge
  • Border is between blocks with entropy difference maximum

Requirements

Python 3.5+

Setup

pip install enimda

Usage

Find if image has any borders:

from enimda import ENIMDA


# Load target image
em = ENIMDA(fp='test.jpg')

# Scan for borders with high precision
em.scan(fast=False)

# Save image with outlined borders for demonstration
em.outline()
em.save(fp='outlined.jpg')

# Print found image borders (tuple)
print(em.borders)

Demo

For demo please refer to ENIMDA Demo

Also it lives at Picture Instruments as ‘Remove borders’ instrument

Tests

Run tests: py.test

Release History

Release History

1.1.7

This version

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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1.1.6

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1.0.0b3

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1.0.0b2

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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1.0.0b1

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Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
enimda-1.1.7.tar.gz (16.4 kB) Copy SHA256 Checksum SHA256 Source Sep 24, 2016

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