colour python library pdf

stackoverflow.com › questions › 29971228 › how-to-detect-color-from-pdf-python

Felipe's approach didn't work for me, but I came up with this:

#!/usr/bin/env python
# -*- Encoding: UTF-8 -*-

import minecart

colors = set()

with open("file.pdf", "rb") as file:
    document = minecart.Document(file)
    page = document.get_page(0)
    for shape in page.shapes:
        if shape.fill:
            colors.add(shape.fill.color.as_rgb())

for color in colors: print color

This will print a neat list of all unique RGB values in the first page of your document (you could extend it to all pages, of course).

Answer from 黄雨伞 on Stack Overflow

PyMuPDF

pymupdf.readthedocs.io › en › latest › colors.html

Color Database - PyMuPDF documentation

We have taken the liberty to copy this database (a list of tuples) modified into PyMuPDF and make its colors available as PDF compatible float triples: for wxPython’s (“WHITE”, 255, 255, 255) we return (1, 1, 1), which can be directly used in color and fill parameters.

Readthedocs

colour.readthedocs.io › en › v0.3.8

Colour Science for Python — Colour 0.3.8 documentation

Colour is a Python colour science package implementing a comprehensive number of colour theory transformations and algorithms.

Discussions

How to detect color from PDF Python - Stack Overflow

Is there any way, in Python, of automatically detect the colors in a certain area of a PDF and either translate them to RGB or compare them to the legend and then get the color? More on stackoverflow.com

stackoverflow.com

Scraping Data and Colors from PDF Using Python

read this: http://stackoverflow.com/questions/29342542/how-can-i-extract-a-javascript-from-a-pdf-file-with-a-command-line-tool PDF is not an easy beast to tame. More on reddit.com

r/Python

March 31, 2017

How to make a colour composite image in python?

I think those tutorials are pretty much what you need. In the end there are many possible ways how to get there, but essentially you'll always have to generate the [R,G,B] values for each pixel and plot that. If you do plt.imshow() of the data of a single fits (taken in one filter) that will be monochrome of course. It might actually already work if you just overplot the different filter images using imshow with different color maps ("Reds"/"Greens"/"Blues"), you can use the cmap=... argument that imshow has. More on reddit.com

r/astrophysics

May 22, 2025

My first Python Library : SecretColors

You need to add images to the github page: you wont get any users with text about a color palette.

Top answer

1 of 2

Felipe's approach didn't work for me, but I came up with this:

#!/usr/bin/env python
# -*- Encoding: UTF-8 -*-

import minecart

colors = set()

with open("file.pdf", "rb") as file:
    document = minecart.Document(file)
    page = document.get_page(0)
    for shape in page.shapes:
        if shape.fill:
            colors.add(shape.fill.color.as_rgb())

for color in colors: print color

This will print a neat list of all unique RGB values in the first page of your document (you could extend it to all pages, of course).

2 of 2

Depending on where you want to extract the information from, you can use minecart. It has really robust support for colors and allows easy conversion to RGB. Though you can't input a coordinate and get the color value there, if you are trying to get color information from a shape you could do something like the following:

import minecart
doc = minecart.Document(open("my-doc.pdf", "rb"))
page = doc.get_page(0)
BOX = (.5 * 72,  # left bounding box edge
       9 * 72,   # bottom bounding box edge
       1 * 72,   # right bounding box edge
       10 * 72)  # top bounding box edge
for shape in page.shapes:
    if shape.check_in_bbox(BOX):
        r, g, b = shape.fill.color.as_rgb()
        # do stuff with r, g, b

[Disclaimer: I'm the author of minecart]

GitHub

github.com › yearbook › pdf-color-analyzer

GitHub - yearbook/pdf-color-analyzer: Tool for analysing the colours in a PDF · GitHub

A Python tool for analyzing colours in PDF files.

Find elsewhere

Google Bing Mojeek

GitHub

github.com › colour-science › colour

GitHub - colour-science/colour: Colour Science for Python · GitHub

Colour is an open-source Python package providing a comprehensive number of algorithms and datasets for colour science.

Author: colour-science

PyPI

pypi.org › project › colour

colour · PyPI

converts and manipulates various color representation (HSL, RVB, web, X11, ...)

Achim Zeileis

zeileis.org › news › python_colorspace

colorspace: A Python toolbox for colors and palettes

July 30, 2024 - Python package 'colorspace' with tools for manipulating and assessing colors and palettes is now available from PyPI, accompanied by a documentation web page and an arXiv paper.

ResearchGate

researchgate.net › publication › 390453330_GCol_A_High-Performance_Python_Library_for_Graph_Colouring

(PDF) GCol: A High-Performance Python Library for Graph Colouring

April 2, 2025 - PDF | On Apr 2, 2025, Rhyd Lewis and others published GCol: A High-Performance Python Library for Graph Colouring | Find, read and cite all the research you need on ResearchGate

PyPI

pypi.org › project › colour-science

colour-science · PyPI

Colour is an open-source Python package providing a comprehensive number of algorithms and datasets for colour science.

Colour-science

colour-science.org › api › 0.3.3 › html

Colour Science for Python — Colour 0.3.3 documentation

Colour is a Python colour science package implementing a comprehensive number of colour theory transformations and algorithms · It is open source and freely available and under the New BSD License terms

Michael Currin

michaelcurrin.github.io › dev-cheatsheets › cheatsheets › python › libraries › colors.html

Colors | Dev Cheatsheets

>>> from colour import Color >>> c = Color("blue") >>> c <Color blue> >>> c.hex '#00f' >>> c.hsl (0.66..., 1.0, 0.5) >>> c.rgb (0.0, 0.0, 1.0)

GitHub

github.com › vaab › colour

GitHub - vaab/colour: Python color representations manipulation library (RGB, HSL, web, ...) · GitHub

Python color representations manipulation library (RGB, HSL, web, ...) - vaab/colour

Author: vaab

Scientific-python

blog.scientific-python.org › matplotlib › pypalettes

Blog - PyPalettes: all the colors you'll ever need

April 1, 2025 - Matplotlib is the go-to library for data visualization in Python. While it offers quality built-in colormaps like viridis and inferno, the limited selection can make Matplotlib charts look similar. To address this, I developed pypalettes, a Python library with over 2,500 high-quality, pre-made color palettes, based on Paletteer.

reddit.com › r/python › scraping data and colors from pdf using python

r/Python on Reddit: Scraping Data and Colors from PDF Using Python

March 31, 2017 -

I have a calendar pdf where some dates are highlighted in a certain color. I need to get these highlighted dates. I tried using pdfminer, but it does not recognize colors, and I am currently looking into minecart. Does anyone have any suggestions on how to get this data? Please let me know! Thank you :)