Developer Reference

  • 2020
  • 10/21/2020
  • Public Content
Contents

FilterLowpassGetBufferSize

Computes the size of the external buffer for the lowpass filter with border.

Syntax

IppStatus ippiFilterLowpassGetBufferSize_8u_C1R(IppiSize
roiSize
, IppiMaskSize
mask
, int*
pBufferSize
);
IppStatus ippiFilterLowpassGetBufferSize_32f_C1R(IppiSize
roiSize
, IppiMaskSize
mask
, int*
pBufferSize
);
Include Files
ippcv.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
,
ipps.h
,
ippi.h
Libraries:
ippcore.lib
,
ippvm.lib
,
ipps.lib
,
ippi.lib
Parameters
roiSize
Maximum size of the source and destination image ROI.
mask
Predefined mask of
IppiMaskSize
type.
pBufferSize
Pointer to the buffer size.
Description
This function computes the size of the external buffer that is required for the filter function
ippiFilterLowpassBorder
. The kernel of the filter is the matrix of either 3x3 or 5x5 size that is specified by the parameter
mask
(see Table
“Types of the Fixed Filter Functions”
). This buffer
pBufferSize[0]
can be used to filter an image whose width and height are equal to or less than corresponding fields of
roiSize
.
Return Values
ippStsNoErr
Indicates no error. Any other value indicates an error or a warning.
ippStsNullPtrErr
Indicates an error condition if the
pBufferSize
pointer is
NULL
.
ippStsSizeErr
Indicates an error condition if
roiSize
has a field with a zero or negative value.
ippStsMaskSizeErr
Indicates an error condition if
mask
has a wrong value.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.