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

ID 790148
Date 3/22/2024
Public
Document Table of Contents

Pixel and Planar Image Formats

Data storage for an image can be pixel-oriented or planar-oriented (planar). For images in pixel order, all channel values for each pixel are clustered and stored consecutively. Their layout depends on the color model and downsampling scheme.

Table “Pixel-Order Image Formats” lists all pixel-order image formats that are supported by the Intel IPP color conversion functions and shows the corresponding channel values order (here, group of underlined symbols represents one pixel and symbol A denotes alpha-channel value). The last column of this table gives an example of an Intel IPP color conversion function that uses the respective image format.

Pixel-Order Image Formats
Image Format Number of Channels Channel Values Order Example

RGB

RGB444

RGB555

RGB565

3

R0 G0 B0 R1 G1 B1 R2 G2 B2

ippiRGBTToYUV_8u_C3R

ippiYCbCrToRGB444_8u16u_C3R

ippiYCbCrToRGB555_8u16u_C3R

ippiYCbCrToRGB565_8u16u_C3R

RGB

4

R0 G0 B0 A0 R1 G1 B1 A1

ippiRGBToYUV_8u_AC4R

BGR

BGR444

BGR555

BGR565

3

B0 G0 R0 B1 G1 R1 B2 G2 R2

ippiYCbCrToBGR_8u_P3C3R

ippiYCbCrToBGR444_8u16u_C3R

ippiYCbCrToBGR555_8u16u_C3R

ippiYCbCrToBGR565_8u16u_C3R

BGR

4

B0 G0 R0 A0 B1 G1 R1 A1

ippiBGRToHLS_8u_A C4R

YUV

3

Y0 U0 V0 Y1 U1 V1 Y2 U2 V2

ippiYUVToRGB_8u_ C3R

YUV

4

Y0 U0 V0 A0 Y1 U1 V1 A1

ippiYUVToRGB_8u_A C4R

4:2:2 YUV

2

Y0 U0 Y1 V0 Y2 U1 Y3 V1

ippiYUV422T0RGB_8u_ C2C3R

YCbCr

3

Y0 Cb0 Cr0 Y1 Cb1 Cr1

ippiYCbCrToRGB_8u_ C3R

YCbCr

4

Y0 Cb0 Cr0 A0 Y1 Cb1 Cr1 A1

ippiYCbCrToRGB_8u_A C4R

4:2:2 YCbCr

2

Y0 Cb0 Y1 Cr0 Y2 Cb1 Y3 Cr1

ippiYCbCr422ToRGB_8u_ C2C3R

4:2:2 YCrCb

2

Y0 Cr0 Y1 Cb0 Y2 Cr1 Y3 Cb1

ippiYCrCb422ToYCbCr422_8u_ C2P3R

4:2:2 CbYCr

2

Cb0 Y0 Cr0 Y1 Cb1 Y2 Cr1 Y3

ippiCbYCr422ToRGB_8u_ C2C3R

XYZ

3

X0 Y0 Z0 X1 Y1 Z1 X2 Y2 Z2

ippiXYZToRGB_8u_ C3R

XYZ

4

X0 Y0 Z0 X1 Y1 Z1 X2 Y2 Z2

ippiXYZToRGB_16u_A C4R

LUV

3

L0 U0 V0 L1 U1 V1 L2 U2 V2

ippiLUVToRGB_16s_ C3R

LUV

4

L0 U0 V0 A0 L1 U1 V1 A1

ippiLUVToRGB_32f_A C4R

YCC

3

Y0 C0 C0 Y1 C1 C1 Y2 C2 C2

ippiYCCToRGB_8u_C3R

YCC

4

Y0 C0 C0 A0 Y1 C1 C1 A1

ippiYCCToRGB_8u_A C4R

HLS

3

H0 L0 S0 H1 L1 S1 H2 L2 S2

ippiHLSToRGB_16u_C3R

HLS

4

H0 L0 S0 A0 H1 L1 S1 A0

ippiHLSToRGB_16u_AC4R

HSV

3

H0 S0 V0 H1 S1 V1 H2 S2 V2

ippiHSVToRGB_16s_C3R

HSV

4

H0 S0 V0 A0 H1 S1 C1 A1

ippiHSVToRGB_16s_AC4R

Planar image formats supported by the Intel IPP color conversion functions are listed in Table “Planar Image Formats” along with examples of the Intel IPP functions using that format. Planes layout and their relative sizes are shown in Figure Plane Size and Layout: 3-planes Images and Figure Plane Size and Layout: 2-planes Images.

Planar Image Formats

Image Format

Number of Planes

Planes Layout

Example

 

pl.1

pl.2

pl.3

 

RGB

3

R

G

B

see Figure below, a

ippiRGBToYUV_8u_P3R

YUV

3

Y

U

V

see Figure below, a

ippiYUVToRGB_8u_P3R

4:2:2 YUV

3

Y

U

V

see Figure below, b

ippiYUV422ToRGB_8u_P3

4:2:0 YUV

3

Y

U

V

see Figure below, d

ippiYUV420ToRGB_8uP3C3R

YCbCr

3

Y

Cb

Cr

see Figure below, a

ippiYCbCrToRGB_8u_P3R

4:2:2 YCbCr

3

Y

Cb

Cr

see Figure below, b

ippiYCbCr422_8u_P3C2R

4:1:1 YCbCr

3

Y

Cb

Cr

see Figure below, c

ippiYCbCr411_8u_P3P2R

4:1:1 YCbCr

2

Y

CbCr

-

see Figure below for 2-planes images, a

ippiYCbCr411_8u_P2P3R

4:2:0 YCbCr

3

Y

Cb

Cr

see Figure below, d

ippiRGBToYCbCr420_8u_C3P3R

4:2:0 YCbCr

2

Y

CbCr

-

see Figure below for 2-planes images, b

ippiYCbCr420_8u_P2P3R

4:2:0 YCrCb

3

Y

Cr

Cb

see Figure below, d

ippiYCrCb420ToYCbCr422_8u_P3R

Plane Size and Layout - 3-planes Images



Plane Size and Layout - 2-planes Images