Developer Guide

Contents

Channel and Planar Image Data Layouts

Intel® IPP functions operate on two fundamental data layouts: channel and planar.
In channel format, all values share the same buffer and all values for the same pixel position are interleaved together. Functions working with channel data have a
_Cn
descriptor, where
n
can take one of the following values: 1, 2, 3, or 4. The figure below shows 24 bit per pixel RGB data, which is represented as
_C3
.
RGB data in
_C3
layout
For planar format, there is one value per pixel but potentially several related planes. Functions working with planar data have a
_Pn
descriptor, where
n
can take one of the following values: 1, 2, 3, or 4. The figure below shows 24 bit per pixel RGB data represented as
_P3
.
RGB data in
_P3
layout
For many video and image processing formats planes may have different sizes.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804