GIMP bimp

일단은...
https://github.com/alessandrofrancesconi/gimp-plugin-bimp#readme

리눅스에서는 컴파일 필요.

# apt-get install libgimp2.0-dev libgegl-dev
$ make && make install

GIMP 메뉴에서

File - Batch Image Manipulation

https://alessandrofrancesconi.it/projects/bimp/