simpeg: SIMple jPEG Decoder-Encoder

This repo does nothing expect for a decode-encode process of reading RGB data from a jpg image, and output as another jpg file.

Dependency

• libjpeg or libjpeg-turbo to load and convert JPEG information into color space

Build & Run

Require C++11.

$ make
$ ./simpeg demo/lena-color.jpg demo/lena-color-30.jpg 30

Demo

The left one is the origin with 160KB size while the right is JPEG compressed image with quality equals to 30 and only 10KB size.

References

• read jpeg image with libjpeg
• jpeg compress algorithm