Usage

Just run it from within the directory containing images for conversion and it will automatically produce their *.ali variants:

java -jar AlbiteImageConverter-0.9.1

Notes:

1. Only PNG images will be converted, and all other files will be skipped
2. It works only with transparent PNGs, i.e. it copies the Alpha channel to the output grayscale *.ali image. In other words, if your image is opaque, it will produce a completely white image. On the other hand, it will ignore any info on the RGB channels.

The *.ali File Format

Meaning	Type	Bytes
Magic number	Integer	4
Image width	Short	2
Image height	Short	2
Image grayscale data	byte[]	width * height