Version: 2021
Last Updated: 01/15/2021
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Add

Adds pixel values of two images.

Syntax

Case 1: Not-in-place operation on integer or complex data

IppStatus ippiAdd_<mod>

(

const Ipp<datatype>*

pSrc1

int

src1Step

const Ipp<datatype>*

pSrc2

int

src2Step

Ipp<datatype>*

pDst

int

dstStep

IppiSize

roiSize

int

scaleFactor

);

Supported values for mod:

`8u_C1RSfs`	`16u_C1RSfs`	`16s_C1RSfs`
`8u_C3RSfs`	`16u_C3RSfs`	`16s_C3RSfs`
`8u_C4RSfs`	`16u_C4RSfs`	`16s_C4RSfs`
`8u_AC4RSfs`	`16u_AC4RSfs`	`16s_AC4RSfs`

Case 2: Not-in-place operation on floating point or complex data

IppStatus ippiAdd_<mod>

(

const Ipp<datatype>*

pSrc1

int

src1Step

const Ipp<datatype>*

pSrc2

int

src2Step

Ipp<datatype>*

pDst

int

dstStep

IppiSize

roiSize

);

Supported values for mod:

32f_C1R

32f_C3R

32f_C4R

IppStatus ippiAdd_32f_AC4R

(

const Ipp32f*

pSrc1

int

src1Step

const Ipp32f*

pSrc2

int

src2Step

Ipp32f*

pDst

int

dstStep

IppiSize

roiSize

);

Case 3: In-place operation on integer or complex data

IppStatus ippiAdd_<mod>

(

const Ipp<datatype>*

pSrc

int

srcStep

Ipp<datatype>*

pSrcDst

int

srcDstStep

IppiSize

roiSize

int

scaleFactor

);

Supported values for mod:

`8u_C1IRSfs`	`16u_C1IRSfs`	`16s_C1IRSfs`
`8u_C3IRSfs`	`16u_C3IRSfs`	`16s_C3IRSfs`
`8u_AC4IRSfs`	`16u_AC4IRSfs`	`16s_AC4IRSfs`
`8u_C4IRSfs`	`16u_C4IRSfs`	`16s_C4IRSfs`

Case 4: In-place operation on floating point or complex data

IppStatus ippiAdd_<mod>

(

const Ipp<datatype>*

pSrc

int

srcStep

Ipp<datatype>*

pSrcDst

int

srcDstStep

IppiSize

roiSize

);

Supported values for mod:

32f_C1IR

32f_C3IR

32f_AC4IR

32f_C4IR

Case 5: In-place operation using a floating point accumulator image

IppStatus ippiAdd_<mod>

(

const Ipp<srcDatatype>*

pSrc

int

srcStep

Ipp32f*

pSrcDst

int

srcDstStep

IppiSize

roiSize

);

Supported values for mod:

8u32f_C1IR

16u32f_C1IR

Case 6: Masked in-place operation using a floating point accumulator image

IppStatus ippiAdd_<mod>

(

const Ipp<srcDatatype>*

pSrc

int

srcStep

const Ipp8u*

pMask

int

maskStep

Ipp32f*

pSrcDst

int

srcDstStep

IppiSize

roiSize

);

Supported values for mod:

8u32f_C1IMR

16u32f_C1IMR

32f_C1IMR

Case 7: Not-in-place operation on integer data with platform-aware functions

IppStatus ippiAdd_<mod>

(

const Ipp<datatype>*

pSrc1

IppSizeL

src1Step

const Ipp<datatype>*

pSrc2

IppSizeL

src2Step

Ipp<datatype>*

pDst

IppSizeL

dstStep

IppiSizeL

roiSize

int

scaleFactor

);

Supported values for mod:

`8u_C1RSfs_L`	`16u_C1RSfs_L`	`16s_C1RSfs_L`
`8u_C3RSfs_L`	`16u_C3RSfs_L`	`16s_C3RSfs_L`
`8u_C4RSfs_L`	`16u_C4RSfs_L`	`16s_C4RSfs_L`
`8u_AC4RSfs_L`	`16u_AC4RSfs_L`	`16s_AC4RSfs_L`

Case 8: Not-in-place operation on floating point data with platform-aware functions

IppStatus ippiAdd_<mod>

(

const Ipp<datatype>*

pSrc1

IppSizeL

src1Step

const Ipp<datatype>*

pSrc2

IppSizeL

src2Step

Ipp<datatype>*

pDst

IppSizeL

dstStep

IppiSizeL

roiSize

);

Supported values for mod:

32f_C1R_L

32f_C3R_L

32f_C4R_L

32f_AC4R_L

Case 9: In-place operation on integer data with platform-aware functions

IppStatus ippiAdd_<mod>

(

const Ipp<datatype>*

pSrc

IppSizeL

srcStep

Ipp<datatype>*

pSrcDst

IppSizeL

srcDstStep

IppiSizeL

roiSize

int

scaleFactor

);

Supported values for mod:

`8u_C1IRSfs_L`	`16u_C1IRSfs_L`	`16s_C1IRSfs_L`
`8u_C3IRSfs_L`	`16u_C3IRSfs_L`	`16s_C3IRSfs_L`
`8u_C4IRSfs_L`	`16u_C4IRSfs_L`	`16s_C4IRSfs_L`
`8u_AC4IRSfs_L`	`16u_AC4IRSfs_L`	`16s_AC4IRSfs_L`

Case 10: In-place operation on floating point data with platform-aware functions

IppStatus ippiAdd_<mod>

(

const Ipp<datatype>*

pSrc1

IppSizeL

src1Step

Ipp<datatype>*

pDst

IppSizeL

dstStep

IppiSizeL

roiSize

);

Supported values for mod:

32f_C1IR_L

32f_C3IR_L

32f_C4IR_L

32f_AC4IR_L

Case 11: Not-in-place operation on integer data with threading layer (TL) functions

IppStatus ippiAdd_<mod>

(

const Ipp<datatype>*

pSrc1

IppSizeL

src1Step

const Ipp<datatype>*

pSrc2

IppSizeL

src2Step

Ipp<datatype>*

pDst

IppSizeL

dstStep

IppiSizeL

roiSize

int

scaleFactor

);

Supported values for mod:

`8u_C1RSfs_LT`	`16u_C1RSfs_LT`	`16s_C1RSfs_LT`
`8u_C3RSfs_LT`	`16u_C3RSfs_LT`	`16s_C3RSfs_LT`
`8u_C4RSfs_LT`	`16u_C4RSfs_LT`	`16s_C4RSfs_LT`
`8u_AC4RSfs_LT`	`16u_AC4RSfs_LT`	`16s_AC4RSfs_LT`

Case 12: Not-in-place operation on floating point data with TL functions

IppStatus ippiAdd_<mod>

(

const Ipp<datatype>*

pSrc1

IppSizeL

src1Step

const Ipp<datatype>*

pSrc2

IppSizeL

src2Step

Ipp<datatype>*

pDst

IppSizeL

dstStep

IppiSizeL

roiSize

);

Supported values for mod:

32f_C1R_LT

32f_C3R_LT

32f_C4R_LT

32f_AC4R_LT

Case 13: In-place operation on integer data with TL functions

IppStatus ippiAdd_<mod>

(

const Ipp<datatype>*

pSrc

IppSizeL

srcStep

Ipp<datatype>*

pSrcDst

IppSizeL

srcDstStep

IppiSizeL

roiSize

int

scaleFactor

);

Supported values for mod:

`8u_C1IRSfs_LT`	`16u_C1IRSfs_LT`	`16s_C1IRSfs_LT`
`8u_C3IRSfs_LT`	`16u_C3IRSfs_LT`	`16s_C3IRSfs_LT`
`8u_C4IRSfs_LT`	`16u_C4IRSfs_LT`	`16s_C4IRSfs_LT`
`8u_AC4IRSfs_LT`	`16u_AC4IRSfs_LT`	`16s_AC4IRSfs_LT`

Case 14: In-place operation on floating point data with TL functions

IppStatus ippiAdd_<mod>

(

const Ipp<datatype>*

pSrc1

IppSizeL

src1Step

Ipp<datatype>*

pDst

IppSizeL

dstStep

IppiSizeL

roiSize

);

Supported values for mod:

32f_C1IR_LT

32f_C3IR_LT

32f_C4IR_LT

32f_AC4IR_LT

Case 15: In-place operation on integer data with TL functions based on classic API

IppStatus ippiAdd_<mod>

(

const Ipp<datatype>*

pSrc

IppSize

srcStep

Ipp<datatype>*

pSrcDst

IppSize

srcDstStep

IppiSize

roiSize

int

scaleFactor

);

Supported values for mod:

`16s_C1IRSfs_T`	`32s_C1IRSfs_T`
`16s_C3IRSfs_T`
`16s_C4IRSfs_T`

Include Files

ippcv.h

ippi.h

ippi_l.h

ippi_tl.h

Domain Dependencies

Flavors declared in

ippi.h

Headers:

ippcore.h

ippvm.h

ipps.h

Libraries:

ippcore.lib

ippvm.lib

ipps.lib

Flavors declared in

ippcv.h

Headers:

ippcore.h

ippvm.h

ipps.h

ippi.h

Libraries:

ippcore.lib

ippvm.lib

ipps.lib

ippi.lib

Flavors declared in

ippi64x.h

Libraries:

ippcore.lib

ippvm.lib

ipps.lib

ippi.lib

ippcore_tl.lib

ippi_tl.lib

Parameters

pSrc , pSrc1 , pSrc2: Pointer to the ROI in the source images.
srcStep , src1Step , src2Step: Distance, in bytes, between the starting points of consecutive lines in the source images.
pDst: Pointer to the destination image ROI.
dstStep: Distance, in bytes, between the starting points of consecutive lines in the destination image.
pSrc: Pointer to the first source image ROI for the in-place operation.
srcStep: Distance, in bytes, between the starting points of consecutive lines in the first source image for the in-place operation.
pSrcDst: Pointer to the second source and destination image ROI for the in-place operation.
srcDstStep: Distance, in bytes, between the starting points of consecutive lines in the source and destination image for the in-place operation.
pMask: Pointer to the mask image ROI for the masked operation.
maskStep: Distance, in bytes, between the starting points of consecutive lines in the mask image for the masked operation.
roiSize: Size of the source and destination ROI in pixels.
scaleFactor: Scale factor (see Integer Result Scaling).

Description

This function operates with ROI.

This function adds corresponding pixel values of two source image buffers and places the results in a destination buffer. In case of operations on integer data, the resulting values are scaled by

scaleFactor

. For complex data, the function processes both real and imaginary parts of pixel values. Some function flavors add 8u, 8s, 16u, or 32f source image pixel values to a floating point accumulator image in-place. Addition of pixel values in case of a masked operation is performed only if the respective mask value is non-zero; otherwise, the accumulator pixel value remains unchanged.

For the functions that operate on complex data, step values must be positive. For the functions that use an accumulator image, step values must be no less than

roiSize.width*<pixelSize>

Functions with AC4 descriptor do not process alpha channels.

Function flavors described in Case 5 and Case 6 are declared in the

ippcv.h

Return Values

ippStsNoErr: Indicates no error. Any other value indicates an error or a warning.
ippStsNullPtrErr: Indicates an error condition when any of the specified pointers is NULL.
ippStsSizeErr: Indicates an error condition when
roiSize
has a field with zero or negative value.
ippStsStepErr: Indicates an error condition in the following cases:
For functions that operate on complex data, if any of the specified step values is zero or negative.
For functions using an accumulator image, if any of the specified step values is less than
roiSize.width * <pixelSize>
.
ippStsNotEvenStepErr: Indicates an error condition when one of step values for floating-point images cannot be divided by 4.

Example

The code example below shows how to use the function

ippiAdd_8u_C1RSfs

Ipp8u src1[8*4] = {8, 4, 2, 1, 0, 0, 0, 0,
                   8, 4, 2, 1, 0, 0, 0, 0,
                   8, 4, 2, 1, 0, 0, 0, 0,
                   8, 4, 2, 1, 0, 0, 0, 0};
Ipp8u src2[8*4] = {4, 3, 2, 1, 0, 0, 0, 0,
                   4, 3, 2, 1, 0, 0, 0, 0,
                   4, 3, 2, 1, 0, 0, 0, 0,
                   4, 3, 2, 1, 0, 0, 0, 0};
Ipp8u dst[8*4];
IppiSize srcRoi = { 4, 4 };
Int scaleFactor = 1;    // later examples for 2 and -2 values

ippiAdd_8u_C1RSfs (src1, 8, src2, 8, dst, 4, srcRoi, scaleFactor );

Result:
    src1                src2            
8 4 2 1 0 0 0 0    4 3 2 1 0 0 0 0
8 4 2 1 0 0 0 0    4 3 2 1 0 0 0 0
8 4 2 1 0 0 0 0    4 3 2 1 0 0 0 0
8 4 2 1 0 0 0 0    4 3 2 1 0 0 0 0

dst >>    scaleFactor = 1        scaleFactor = 2    ScaleFactor = -2
             6 4 2 1                3 2 1 0            48 28 16 8
             6 4 2 1                3 2 1 0            48 28 16 8
             6 4 2 1                3 2 1 0            48 28 16 8
             6 4 2 1                3 2 1 0            48 28 16 8

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