shunsukeaihara / colorcorrect Goto Github PK

License: MIT License

C++ 51.93% Python 48.07%

colorcorrect's Introduction

colorcorrect
by Shunsuke Aihara - http://argmax.jp

date::

    February 2012

description::

    Imprement some of color correction algorithms

require::

    python2.6 or later
    numpy
    Pillow

install::

    % python setup.py build
    % python setup.py install

impement algorithms::

    gray world
         colorcorrect.algorithm.gray_world
         usage: image
    max white
        colorcorrect.algorithm.max_white
        usage: image
    stretch
        colorcorrect.algorithm.stretch
        usage: image
    retinex
        colorcorrect.algorithm.retinex
        usage: image
    retinex with adjust
            colorcorrect.algorithm.retinex_with_adjust
            usage: image
    standard deviation weighted grey world
             colorcorrect.algorithm.standard_deviation_weighted_grey_world
             usage: image,subblock width(default:20), subblock height(default:20)
    standard deviation and luminance weighted gray world
             colorcorrect.algorithm.standard_deviation_and_luminance_weighted_gray_world
             usage: image,subblock width(default:20), subblock height(default:20)
    luminance weighted gray world
              colorcorrect.algorithm.luminance_weighted_gray_world
             usage: image,subblock width(default:20), subblock height(default:20)
    automatic color equalization
              colorcorrect.algorithm.automatic_color_equalization
              usage: image,slope(default:10),limit(default:1000)

sample usage::

    >>> import Image
    >>> import colorcorrect.algorithm as cca
    >>> from colorcorrect.util import from_pil, to_pil
    >>> img = Image.open('/path/to/image')
    >>> to_pil(cca.stretch(from_pil(img))).show()

References::

    Denis. Nikitenko, M. Wirth and K. Trudel, "Applicability Of White-Balancing Algorithms to Restoring Faded Colour Slides: An Empirical Evaluation.", Journal of Multimedia, vol. 3, no. 5, 2008.
    HK. Lam, OC. Au and CW. Wong, "Automatic white balancing using luminance component and standard deviation of RGB components", in Proc. ICASSP, 2004.
    A. Rizzi, C. Gatta and D. Marini, "A new algorithm for unsupervised global and local color correction.", Pattern Recognition Letters, vol. 24, no. 11, 2003.

colorcorrect's People

Contributors

Stargazers

Watchers

Forkers

pythonista piclane phylliade theothergrantdavidson maokawa roniemartinez todicus zhlfmyzhh tomoemagica thanhnt37 koshinomasaya paprikamario

colorcorrect's Issues

Can't be installed on a Windows Machine

When you try to install this library through pip in a windows machine I get the error:

LINK : fatal error LNK1181: cannot open input file 'm.lib'

If you look in this link, you'll see that the math library is provided by a different library in windows:

>>> from ctypes.util import find_library
>>> find_library('m')
'msvcr90.dll'

I suggest changing the setup.py to this:

# -*- coding: utf-8 -*-
from setuptools import setup, Extension
import sys
import os

sys.path.append('./src')
sys.path.append('./test')
version = open('VERSION').read().strip()

libs = []
if os.name == 'posix':
    libs.append('m')

setup(name='colorcorrect',
      version=version,
      description="imprement some of color correction algorithms",
      long_description=open('README').read(),
      classifiers=[],
      keywords=('image-processing computer-vision'),
      author='Shunsuke Aihara',
      author_email='[email protected]',
      url='http://www.bitbucket.org/aihara/colorcorrect',
      license='MIT License',
      package_dir={'': 'src'},
      packages=['colorcorrect'],
      ext_modules=[
          Extension(
              'colorcorrect._cutil', [
                  'cutil/cutil.cpp',
              ],
              include_dirs=['cutil'],
              libraries=libs,
              extra_compile_args=[],
          ),
      ],
      install_requires=["numpy", "Pillow", "six"],
      test_requires=["nose"]
      )

float interpreted as int fails in lib.stride_tricks.as_strided()

hello shunsukeaihara
In using your code outside the python setup, - ie, githubbed and called from my code with python 3.6.4 and numpy 1.14.0. on Ubuntu 16.04

In running standard_deviation_weighted_grey_world_python() I had to change the following line to make the call to lib.stride_tricks.as_strided() work

from>
shape = (height / subheight, width / subwidth, subheight, subwidth, 3)
to>
shape = (int(height / subheight), int(width / subwidth), subheight, subwidth, 3)
fyi

implement new algotithms

Perceptual color correction through variational techniques
- http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.324.3448&rep=rep1&type=pdf

Giving segmentation fault:11 in function "standard_deviation_and_luminance_weighted_gray_world" by applying on number of images in a loop

I am using macOS 10.6
python 3.5.4
image resolution all approx 2096x3094

shunsukeaihara / colorcorrect Goto Github PK

colorcorrect's Introduction

colorcorrect's People

Contributors

Stargazers

Watchers

Forkers

colorcorrect's Issues

Can't be installed on a Windows Machine

float interpreted as int fails in lib.stride_tricks.as_strided()

implement new algotithms

Giving segmentation fault:11 in function "standard_deviation_and_luminance_weighted_gray_world" by applying on number of images in a loop

Recommend Projects

React

Vue.js

Typescript

TensorFlow

Django

Laravel

D3

Recommend Topics

javascript

web

server

Machine learning

Visualization

Game

Recommend Org

Facebook

Microsoft

Google

Alibaba

D3

Tencent

Jobs