Java JPEG Writer
JDeli includes a JPEG Writer to write JPEG files in Java. The JPEG Encoder is written in 100% Java with no dependencies.
Key information:
- 100% Java solution. No dlls or dependencies on native code
- Fast and easy to use
- Supports quality settings
Quick start or to replace in existing code using ImageIO:
JDeli.write(myBufferedImage, "jpg", outputStreamOrFile);
or
byte[] outputData = JDeli.write(myBufferedImage, "jpg");
New method for quick and simple usage
JDeli.write(myBufferedImage, OutputFormat.JPEG, outputStreamOrFile)
OutputFormat allows setting of any supported Image Format
For complete control of output:
final JpegEncoderOptions options = new JpegEncoderOptions();
//set any options in options instance - examples below
options.setQuality(100);//0-100
//write out
JDeli.write(myBufferedImage, options, outputStreamOrFile);
JpegEncoderOptions allows setting of specific options.
Various image processing operations can be conducted on the image, detailed documentation can be found here.
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.
Benchmark | Mode | Cnt | Score | Error | Units |
---|---|---|---|---|---|
JPEG.ImageIO | thrpt | 25 | 1.806 | ± 0.007 | ops/s |
JPEG.JDeli | thrpt | 25 | 4.013 | ± 0.025 | ops/s |
Tested on 2020 13inch M1 MacBook Pro using JDK 18.0.1.1