Specifications

Intel
®
Image Processing Library Reference Manual
10-14
10
Less
Tests if the pixel values of the
first image are less than those of
the second image.
IPLStatus iplLess (IplImage* img1, IplImage* img2 ,
IplImage*
dst );
img1, img2 The source images.
dst The resultant 1-bit image.
Discussion
The function iplLess() compares the corresponding pixels of two input
images for “less than” and writes the results to a 1-bit image dst .Ifa
pixel’s value in
img1 is less than that pixel’s value in img2 ,thenthe
corresponding pixel in
dst is set to 1; otherwise the pixel in dst is set to 0.
The images
img1 and img2 must have the same bit depth, origin, and COI
settings. If the COI is not set, an
img1 pixel is considered to be “less” than
an
img2 pixel only if each channel in the img1 pixel is less than that
channel in the
img2 pixel. If the COI is set, the function compares only the
COI values.
The function returns
IPL_StsOK if the compare operation is successful.
If you pass incompatible img1 and img2 or a null pointer, the function does
not perform the compare operation and returns an error status code.