HSV to RGB/BGR - 2024.1 English

Vitis Libraries

Release Date
2024-05-30
Version
2024.1 English
The hsv2(rgb/bgr) function converts HSV color space to 3-channel RGB/BGR image.
6.743474999999998 C = V   X   S H S V
12.052500000000002 H ' = H 60 °
5.542499999999997 X = C   X   ( 1 - | H ' m o d 2 - 1   | )
image55
3.2700000000000014 m = V - C
6.599699999999999 ( R , G , B ) = R 1 + m , G 1 + m   , B 1 + m

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 hsv2rgb(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 hsv2bgr(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 450 Table HSV2RGB/BGR 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. Must be multiple of 8.
COLS Maximum width of input and output image. Must be multiple of 8.
NPC Number of pixels to be processed per cycle
XFCVDEPTH_IN Depth of input image
XFCVDEPTH_OUT Depth of output image
_src HSV input image
_dst RGB/BGR output image

Resource Utilization

The following table summarizes the resource utilization of HSV2RGB/BGRR for different configurations, as generated in the Vivado HLS 2019.1 version tool for the Xczu9eg-ffvb1156-1-i-es1 FPGA, to process a HD (1080x1920) image.

Table 451 Table HSV2RGB/BGR Function Resource Utilization Summary
Operating Mode Operating Frequency (MHz) Utilization Estimate
BRAM_18K DSP_48Es FF LUT
1 Pixel 300 0 8 1543 1006

Performance Estimate

The following table summarizes the performance of HSV2RGB/BGR for different configurations, as generated using the Vivado HLS 2019.1 version tool for the Xczu9eg-ffvb1156-1-i-es1, to process a HD (1080x1920) image.

Table 452 Table HSV2RGB/BGR Function Performance Estimate Summary
Operating Mode Latency Estimate
Max Latency (ms)
1 pixel operation (300 MHz) 6.9