Something like:
pcomb -e 'Cx:xmax/2;Cy:ymax/2;R:if(Cx-Cy,Cy,Cx);sq(x):x*x' -e 'inC=sq(R)-sq(x-Cx)-sq(y-Cy)' \
-e 'ro=if(inC,ri(1),0);go=if(inC,gi(1),0);bo=if(inC,bi(1),0)' -o input.hdr > cropped.hdr
You may have to adjust the definitions of R and/or Cx and Cy if your circle doesn't completely fill one dimension of the image.
Best,
-Greg
···
From: Leyla Sanati <[email protected]>
Date: February 19, 2013 9:51:12 AM PSTHi,
I have some HDR images captured by a fisheye lens, and I want to clean it up to only show the circular image in a black background.
Can anyone help me with the pcomb command to mask off the circular image.Thanks,
Leyla