Offset between parsed image and original image

[jcremona]

Dear @SanNianYiSi , thanks for this amazing library. I am very new working with thermal images, so I have a few questions. I am trying to calibrate both cameras (RGB and thermal) of a DJI Mavic2 Enterprise Advanced as a stereo rig. I took some images of a calibration pattern.

First image is the original image is the original image, and the second image is the output of your parser after mapping it to [0,255]. Could you please explain the differences between both images? Why is there a small offset between the two as if they were taken by different sensors (or at different times)? Is it a constant offset? Thanks in advance.