Fast libspng-based PNG decoder
Project description
Pyspng is a small library to load PNG files into numpy arrays. Unlike many other popular Python image libraries, pyspng does not offer any image manipulation functionality.
Pyspng was originally written to speed up loading uncompressed (PNG compression level 0), making the PNG file format more suitable to be used in machine learning datasets. Pyspng uses the native libspng library for fast PNG decoding. Synthetic benchmarks indicate pyspng to be roughly 2-3x faster in loading uncompressed PNGs than the Python Pillow library.
Example
import numpy as np
import pyspng
with open('test.png', 'rb') as fin:
nparr = pyspng.load_png(fin.read())
Installation
pip install pyspng
Note: binary wheels are built for Linux and Windows. MacOS may not work out of the box.
License
pyspng is provided under a BSD-style license that can be found in the LICENSE file. By using, distributing, or contributing to this project, you agree to the terms and conditions of this license.
Project details
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