Specifications

Intel
®
Image Processing Library Reference Manual
5-4
5
SubtractS, SubtractSFP
Subtracts a constant from
pixel values, or pixel
values from a constant.
void iplSubtractS(IplImage* srcImage , IplImage* dstImage ,
int
value , BOOL flip );
void iplSubtractSFP(IplImage*
srcImage ,IplImage* dstImage ,
float
value , BOOL flip ); /* IPL_DEPTH_32F only */
srcImage Thesourceimage.
dstImage The resultant image.
value The value to be subtracted from the pixel values.
flip A Boolean used to change the order of subtraction.
Discussion
The functions change the image intensity as follows:
If
flip is false, the value is subtracted from the image pixel values.
If
flip is true, the image pixel values are subtracted from the value .
MultiplyS, MultiplySFP
Multiplies pixel values
by a constant.
void iplMultiplyS (IplImage* srcImage , IplImage* dstImage ,
int
value );
void iplMultiplySFP(IplImage*
srcImage ,IplImage* dstImage ,
float
value ); /* images with IPL_DEPTH_32F only */
srcImage Thesourceimage.