Specifications

Intel
®
Image Processing Library Reference Manual
4-22
4
Discussion
The function iplDeleteROI() deallocates a ROI structure previously
created by
iplCreateROI().
SetROI
Sets the region of
interest (ROI) structure.
void iplSetROI(IplROI* roi , int coi , int xOffset ,
int
yOffset , int width , int height );
roi The pointer to the ROI structure to modify in the
original image.
coi The channel of interest in the original image. It
can be set to 0 (for all channels) or to a specific
channel number.
xOffset, yOffset The offset from the origin of the rectangular
region.
width, height The size of the rectangular region.
Discussion
The function iplSetROI() sets the channel of interest and the rectangular
region of interest in the structure roi .
The argument
coi defines the number of the channel of interest. The
arguments
xOffset and yOffset define the offset from the origin of the
rectangular ROI. The members
height and width define the size of the
rectangular ROI.