There's a simpler way than using the app which should be easier to script using the jarfile that implements pixelknot's FT algo. See doc here:

https://code.google.com/archive/p/f5-steganography/

>>2302071

Pixelknot can encode without a password. Maybe one of the images has the stegonography info in the clear….

If someone's techy (mobilefagging ATM), one could batch attempt to decide without a password all the images Q has posted.