I have a set of RAW photos that I’d like to generate a linear color MSPECs for/correct exposure/white balance. Each photo has an 18% gray standard in the photo. For some photos, the MSPEC is successfully created and looks normal. For most others, however, the program flashes through images that look like typical outputs to end up with entirely white channels. I’ve tried editing min/max values but this hasn’t solved the problem. Thoughts?
With the images that work, the reflectance is 18% in all channels — all good there. I tried the auto brightness, but it just turns the channels entirely blue/yellow/red, depending on which channel I was on when I set it.
Interestingly, although the MSPEC appears incorrect after initial creation, if I close the file and reload it, it is corrected (all channels reading 18). Weird, but we can work around it.
Another question for you — we are hoping to do a bunch of image analyses in R on our corrected photos. Can we somehow export our corrected photos as a typical image file for analysis?