xray.jit.sift
Sifts out rows/columns that aren’t marked by a 'logic 1' where a 'logic 1' is defined as 255 for char, 1 for long, 1.0 for float32 and float64.
Attributes
-
siftdim [0, 1]:
- check top row for 'logic 1'
- check left column for 'logic 1'
-
siftplane [1, planecount-1]:
- plane to look at for a 'logic 1'