[Radiance-general] Cropping a .pic file

[Krystyna Zelenay]

Hi,

I am wondering if  there is a way to crop a .pic file generated using
rpict ? I would like to crop the .pic file so that it corresponds to
images with a 60 and 120 degree cone of vision to in order to
calculate luminance ratios for the task and surround area,
respectively. In other words, I was just thinking of cropping the 180
degree fisheye view to two smaller circles.

Thanks,

Krystyna