I have a pair of MX516 cameras that are almost working correctly with indi_sx_ccd. There seems to be an issue with resolution and aspect ratio and perhaps how the interline CCD (icx405) data is handled. Kstars shows the image with a wrong aspect ratio and odd or even lines are a mess (see attached). CCDciel has similar issues. Opening the FITS image in GIMP shows the same. I am guessing the metadata from the camera such as sensor height, width, pixel dimensions (which are not square) are being miss-reported or miss-applied. How can I determine if the root cause of the problem is in indi_sx_ccd or the client image capture and display software?
INDI Library: 1.9.3

This is not entirely helpful, but the problem is in the INDI Starlight Xpress driver . You can inspect the code and see if there is anything you can spot about the camera metadata that might cause this.

Thanks very much. I'll see what I can learn from the source code.
Incidentally, if I bin 2x2, then in GIMP scale the resulting image horizontally by the ratio of pixel dimensions (9.8/6.3) = 1.555, the resulting image seems ok, although at pretty low resolution! Round objects come out round, sensor response looks linear - see attached.