NAME
subrect_of_change -- find rectangle bounding changes
PROTOTYPE
unitptr subrect_of_change( int iDx, int iDy, float fTol, char *tOpt, unitptr uHost)
ARGUMENTS
- int iDx
- image width
- int iDy
- image height
- float fTol
- detection threshhold (0..255)
- char *tOpt
- option string
- unitptr uHost
- host unit
INTERFACE:
- X_in[iDx*iDy]:
- input image (packed field)
- CTL_in[0]:
- detection threshhold (initialized by argument
parameter fTol
- X_out[iDx*iDy]:
- output image (packed field)
- Y_out[4]:
- lower left corner (xll,yll) and size (width,height)
of bounding rectangle
- Z_out[2]:
- center (xll+0.5*width,yll+0.5*height) of bounding
rectangle.
DESCRIPTION:
Compares all input pixel values with the corresponding current output
values and sets restriction to rectangle that bounds all those pixel
locations for which the values have changed by more than fTol.
The output is then updated within the rectangle region.
FILE
/amnt/loge/users/nistaff02/nistaff/rhaschke/nst7/man/../o.linux//../foldersrc/nst_pixel.c