I developped a WSQ image plugin (for fingerprint images). It works fine for encode and decode functions. However there are options one would love to pass. The options are, for example, the target bitrate of the compression, or the image comments (to be put on the image headers). I dont know how to do that. I tried to add some info keys like bitrate etc... However if I print the .info dict on the _save method, it is always empty !