Java PNG Reader

JDeli includes a PNG Reader to read PNG images into Java. The PNG Decoder is written in 100% Java with no dependencies.

Key information:

• 100% Java solution. No dlls or dependencies on native code
• Support: interlacing, filtering
• Bit Per Sample: 1, 2, 4, 8 and 16-Bits

Quick start:

JDeli can automatically detect the file type and will use the PNG File Reader

BufferedImage image = JDeli.read(pngImageFile);

or

PngDecoder decoder = new PngDecoder();
BufferedImage image = decoder.read(pngData);

See the full Javadoc.

Performance comparisons:

These figures were generated using jmh (as documented on our blog) with a standard set of images (also documented). They should be easy to replicate if you wish to validate, the code is on GitHub.

The higher the number, the better.

Mode: Throughput Count: 25 Units: ops/s

Tested on 2021 14inch M1 MacBook Pro using JDK 18.0.1.1