Specifications

Intel
®
Image Processing Library Reference Manual
6-14
6
These filter coefficients correspond to a 2-dimensional Gaussian
distribution with standard deviation 1.0.
IPL_HIPASS_3x3 A3x3 highpass filter.
This filter uses the kernel
-1 -1 -1
-1 8 -1
-1 -1 -1
IPL_HIPASS_5x5 A5x5 highpass filter.
This filter uses the kernel
-1 -1 -1 -1 -1
-1 -1 -1 -1 -1
-1 -1 24 -1 -1
-1 -1 -1 -1 -1
-1 -1 -1 -1 -1
IPL_SHARPEN_3x3
A3x3 sharpening filter.
This filter uses the kernel
-1 -1 -1
(1/8) * -1 16 -1
-1 -1 -1
Return Value
The function returns zero if the execution is completed successfully, and a
non-zero integer if an error occurred.
Non-linear Filters
Non-linear filtering involves performing non-linear operations on some
neighborhood of the image. Most common are the minimum, maximum
and median filters.