Prior to using PhotometricColorCalibration there is some space on the left side of the histogram. It's nice to have this extra room to work with when stretching the images. I can adjust the black point without clipping. But when I use PCC or BackgroundNeutralization, this space on the left side of the histogram is eliminated and when I start stretching it becomes a bit difficult because any change to the black point results in clipping.
There's a good change I'm not understanding BackgroundNeutralization or PCC, but is there a way to not move the left side of the histogram when using these tools?