Intel® Integrated Performance Primitives (Intel® IPP) Developer Guide and Reference

ID 790148
Date 3/31/2025
Public
Document Table of Contents

Descriptor

The optional descriptor element describes the data associated with the operation. Descriptors are individual characters that indicate additional details of the operation.

The Intel IPP functions use the following descriptors:

Descriptor Description Example

A

Image data contains an alpha channel as the last channel, requires C4, alpha-channel is not processed.

ippiFilterMax_8u_AC4R

Axx

Advanced arithmetic operations with xx bits of accuracy.

ippsPowx_32f_A11

C

The function operates on a specified channel of interest (COI) for each source image.

ippiSet_8u_C3CR

Cn

Image data consists of n channels. Possible values for n: 1, 2, 3, 4.

ippiFilterBorder_32f_C1R

Dx

D

Signal is x-dimensional (default is D1).

ippsConcat_8u_D2

The descriptors in function names are presented in the function name in alphabetical order.

Some data descriptors are default for certain operations and not added to the function names. For example, the image processing functions always operate on a two-dimensional image and saturate the results without scaling them. In these cases, the implied descriptors D2 (two-dimensional signal) and s (saturation and no scaling) are not included in the function name.