Jarmo, I love what your doing to create several standalone utilities. I have been learning the pixinsight scripting which I had put off because of autointegrate. i wanted a banding reduction script that is faster than the one in Autointegrate. I succeeded this week and have a simple interface that prompt for input and output paths and banding reduction parameters. Plus its much faster than the code you are using in autointegrate. It also copies the banding reduction engine and runs it in the script, but I’m just passing the imputs to it so it doesnt output all that row by row information. Each image takes from 1 to 4 seconds to process. I would be glad to contribute it to your effort if interested.
Ric Anderson