Python QR Code image generator

Overview

Pure python QR Code generator

Generate QR codes.

For a standard install (which will include pillow for generating images), run:

pip install qrcode[pil]

What is a QR Code?

A Quick Response code is a two-dimensional pictographic code used for its fast readability and comparatively large storage capacity. The code consists of black modules arranged in a square pattern on a white background. The information encoded can be made up of any kind of data (e.g., binary, alphanumeric, or Kanji symbols)

Usage

From the command line, use the installed qr script:

qr "Some text" > test.png

Or in Python, use the make shortcut function:

import qrcode
img = qrcode.make('Some data here')

Advanced Usage

For more control, use the QRCode class. For example:

import qrcode
qr = qrcode.QRCode(
    version=1,
    error_correction=qrcode.constants.ERROR_CORRECT_L,
    box_size=10,
    border=4,
)
qr.add_data('Some data')
qr.make(fit=True)

img = qr.make_image(fill_color="black", back_color="white")

The version parameter is an integer from 1 to 40 that controls the size of the QR Code (the smallest, version 1, is a 21x21 matrix). Set to None and use the fit parameter when making the code to determine this automatically.

fill_color and back_color can change the background and the painting color of the QR, when using the default image factory.

The error_correction parameter controls the error correction used for the QR Code. The following four constants are made available on the qrcode package:

ERROR_CORRECT_L
About 7% or less errors can be corrected.
ERROR_CORRECT_M (default)
About 15% or less errors can be corrected.
ERROR_CORRECT_Q
About 25% or less errors can be corrected.
ERROR_CORRECT_H.
About 30% or less errors can be corrected.

The box_size parameter controls how many pixels each "box" of the QR code is.

The border parameter controls how many boxes thick the border should be (the default is 4, which is the minimum according to the specs).

Other image factories

You can encode as SVG, or use a new pure Python image processor to encode to PNG images.

The Python examples below use the make shortcut. The same image_factory keyword argument is a valid option for the QRCode class for more advanced usage.

SVG

You can create the entire SVG or an SVG fragment. When building an entire SVG image, you can use the factory that combines as a path (recommended, and default for the script) or a factory that creates a simple set of rectangles.

From your command line:

qr --factory=svg-path "Some text" > test.svg
qr --factory=svg "Some text" > test.svg
qr --factory=svg-fragment "Some text" > test.svg

Or in Python:

import qrcode
import qrcode.image.svg

if method == 'basic':
    # Simple factory, just a set of rects.
    factory = qrcode.image.svg.SvgImage
elif method == 'fragment':
    # Fragment factory (also just a set of rects)
    factory = qrcode.image.svg.SvgFragmentImage
else:
    # Combined path factory, fixes white space that may occur when zooming
    factory = qrcode.image.svg.SvgPathImage

img = qrcode.make('Some data here', image_factory=factory)

Two other related factories are available that work the same, but also fill the background of the SVG with white:

qrcode.image.svg.SvgFillImage
qrcode.image.svg.SvgPathFillImage

Pure Python PNG

Install the following two packages:

pip install git+git://github.com/ojii/pymaging.git#egg=pymaging
pip install git+git://github.com/ojii/pymaging-png.git#egg=pymaging-png

From your command line:

qr --factory=pymaging "Some text" > test.png

Or in Python:

import qrcode
from qrcode.image.pure import PymagingImage
img = qrcode.make('Some data here', image_factory=PymagingImage)
Owner
Lincoln Loop
Makers of high performance web applications.
Lincoln Loop
Generate waves art for an image

waves-art Generate waves art for an image. Requirements: OpenCV Numpy Example Usage python waves_art.py --image_path tests/test1.jpg --patch_size 15 T

Hamza Rawal 18 Apr 04, 2022
Music Thumbnail Maker

Music Thumbnail Installing pip install TMFrame

krypton 4 Jan 28, 2022
Group of interfaces interesting for users

Project: Interface to create GIF animation based on Fourier Series.

5 Aug 17, 2021
Multiparametric Image Analysis

Documentation The documentation is available on populse_mia's website here Installation From PyPI, for users By cloning the package, for developers Fr

Populse 9 Dec 14, 2022
🖼️ Draw Images or GIFs in your terminal

Drawitor Draw Images/GIFs in your terminal. Install pip install drawitor CLI Tool drawitor cat_dancing.gif Library The library is written in a simple

Eliaz Bobadilla 7 Dec 15, 2022
Find target hash collisions for Apple's NeuralHash perceptual hash function.💣

neural-hash-collider Find target hash collisions for Apple's NeuralHash perceptual hash function. For example, starting from a picture of this cat, we

Anish Athalye 630 Jan 01, 2023
Create a 2D mesh for an airfoil in GMSH using python.

GMSHFoil A simple class to create a 2D mesh for an airfoil in GMSH using python. Requirements pip install airfoils

Charilaos Mylonas 1 May 16, 2022
Wand is a ctypes-based simple ImageMagick binding for Python

Wand Wand is a ctypes-based simple ImageMagick binding for Python, supporting 2.7, 3.3+, and PyPy. All functionalities of MagickWand API are implement

Eric McConville 1.2k Jan 03, 2023
NFT collection generator. Generates layered images

NFT collection generator Generates layered images, whole collections. Provides additional functionality. Repository includes three scripts generate.py

Gleb Gonchar 10 Nov 15, 2022
MikuMikuRig是一款集生成控制器,自动导入动画,自动布料为一体的blender插件

Miku_Miku_Rig MikuMikuRig是一款集生成控制器,自动导入动画,自动布料为一体的blender插件。 MikumiKurig is a Blender plugin that can generates rig, automatically imports animations

小威廉伯爵 342 Dec 29, 2022
Simple utility to tinker with OPlus images

OPlus image utilities Prerequisites Linux running kernel 5.4 or up (check with uname -r) Image rebuilding Used to rebuild read-only erofs images into

Wiley Lau 15 Dec 28, 2022
Computer art based on quadtrees.

Quads Computer art based on quadtrees. The program targets an input image. The input image is split into four quadrants. Each quadrant is assigned an

Michael Fogleman 1.1k Dec 23, 2022
Hello, this project is an example of how to generate a QR Code using python 😁

Hello, this project is an example of how to generate a QR Code using python 😁

Davi Antonaji 2 Oct 12, 2021
:rocket: A minimalist comic reader

Pynocchio A minimalist comic reader Features | Installation | Contributing | Credits This screenshots contains a page of the webcomic Pepper&Carrot by

Michell Stuttgart 73 Aug 02, 2022
💯 Watermark your images with one line of command

Watermarker 💯 Watermark your images with one line of command 🧐 $ pip3 install

Orhan Emre Dikicigil 3 May 01, 2022
Validate arbitrary image uploads from incoming data urls while preserving file integrity but removing EXIF and unwanted artifacts and RCE exploit potential

Validate arbitrary base64-encoded image uploads as incoming data urls while preserving image integrity but removing EXIF and unwanted artifacts and mitigating RCE-exploit potential.

A3R0 1 Jan 10, 2022
A small Python module for BMP image processing.

micropython-microbmp A small Python module for BMP image processing. It supports BMP image of 1/2/4/8/24-bit colour depth. Loading supports compressio

Quan Lin 4 Nov 02, 2022
Short piece of code to create a rainbow gif of gradual contours from two shapefiles

rainbow-elevation-gif Short piece of code to create a rainbow gif of gradual con

Jess Roberts 6 Jan 17, 2022
TRREASURE_IMAGE is python lib by which you can hide anything in a .jpg image with Command-Line Interface[cli] feature

TRREASURE_IMAGE TRREASURE_IMAGE is a python third-party library with Command-Line Interface[cli] feature. Table of Contents General Info Python librar

Fatin Shadab 3 Jun 07, 2022
This is the official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler.

Freedom to build what you want FreeCAD is an open-source parametric 3D modeler made primarily to design real-life objects of any size. Parametric modeling allows you to easily modify your design by g

FreeCAD 12.9k Jan 07, 2023