BGR to RGB / RGB to BGR - 2024.1 English

Vitis Libraries

Release Date
2024-05-30
Version
2024.1 English

The bgr2rgb/rgb2bgr function converts a 3-channel BGR to RGB format or RGB to BGR format.

API Syntax

template<int SRC_T,int DST_T,int ROWS,int COLS,int NPC=1, int XFCVDEPTH_IN = _XFCVDEPTH_DEFAULT, int XFCVDEPTH_OUT = _XFCVDEPTH_DEFAULT>void bgr2rgb(xf::cv::Mat<SRC_T, ROWS, COLS, NPC, XFCVDEPTH_IN> & _src,xf::cv::Mat<DST_T, ROWS, COLS, NPC, XFCVDEPTH_OUT> & _dst)
template<int SRC_T,int DST_T,int ROWS,int COLS,int NPC=1, int XFCVDEPTH_IN = _XFCVDEPTH_DEFAULT, int XFCVDEPTH_OUT = _XFCVDEPTH_DEFAULT>void rgb2bgr(xf::cv::Mat<SRC_T, ROWS, COLS, NPC, XFCVDEPTH_IN> & _src,xf::cv::Mat<DST_T, ROWS, COLS, NPC, XFCVDEPTH_OUT> & _dst)

Parameter Descriptions

The following table describes the template and the function parameters.

Table 467 Table Parameter Description
Parameter Description
SRC_T Input pixel type. Only 8-bit, unsigned, 3-channel is supported (XF_8UC3).
DST_T Output pixel type. Only 8-bit, unsigned, 3-channel is supported (XF_8UC3).
ROWS Maximum height of input and output image.
COLS Maximum width of input and output image. Must be multiple of N.
NPC Number of Pixels to be processed per cycle. Possible options are XF_NPPC1,XF_NPPC2,XF_NPPC4 and XF_NPPC8.
XFCVDEPTH_IN Depth of input image
XFCVDEPTH_OUT Depth of output image
_src BGR/RGB input image
_dst RGB/BGR output image

Resource Utilization

The following table summarizes the resource utilization of RGB to BGR/ BGR to RGB function in Normal mode (1-Pixel), as generated in the Vivado HLS 2019.1 tool for the Xilinx xczu9eg-ffvb1156-2-i-es2 FPGA.

Operating Mode Operating Frequency (MHz) Utilization Estimate
BRAM_18K DSP_48Es FF LUT CLB
1 Pixel 300 0 0 317 118 98

Performance Estimate

The following table summarizes the performance of the kernel in single pixel configuration as generated using Vivado HLS 2019.1 tool for the Xilinx xczu9eg-ffvb1156-2-i-es2 FPGA to process a HD (1080x1920) image.

Table 468 Table Performance Estimate Summary
Operating Mode Latency Estimate
Max Latency (ms)
1 pixel operation (300 MHz) 6.9