camera::Helpers Class Reference

#include <helpers.h>

Public Member Functions
	Helpers ()
uint8_t	clip (int value)
void	convertYUYVPixel (uint8_t y, uint8_t u, uint8_t v, uint8_t &r, uint8_t &g, uint8_t &b)
void	convertYUYV2RGB (uint8_t *yuyv_data, size_t yuyv_data_length, std::vector< uint8_t > &rgb_buffer)

Static Public Member Functions
static void	removeJpegCommentBlock (base::samples::frame::Frame &frame)
static bool	storeImageToFile (std::vector< uint8_t > const &buffer, std::string const &file_name)

Constructor & Destructor Documentation

camera::Helpers::Helpers ( )

inline

Creates YUV2RGB lookup tables.

Member Function Documentation

uint8_t camera::Helpers::clip ( int  value )

inline

void camera::Helpers::convertYUYV2RGB ( uint8_t *  yuyv_data, size_t  yuyv_data_length, std::vector< uint8_t > &  rgb_buffer  )

inline

Converts an YUYV image to RGB24.

Parameters

yuyv_data	Pointer to the YUV data. Four bytes are two pixels, U and V belong to both Ys: YUY'V forms YUV and Y'UV. Ranges on the test system: Y[0,255] U[0,218] V[0,254]
yuyv_data_length	Number of bytes of yuyv_data. Divides by 2 is the number of pixels.
rgb_buffer	Buffer which will receive the RGB pixels. http://stackoverflow.com/questions/37561461/how-to-convert-yuyv-to-rgb-code-to-yuv420-to-rgb

void camera::Helpers::convertYUYVPixel ( uint8_t  y, uint8_t  u, uint8_t  v, uint8_t &  r, uint8_t &  g, uint8_t &  b  )

inline

static void camera::Helpers::removeJpegCommentBlock ( base::samples::frame::Frame &  frame )

inlinestatic

Someone (OpenCV?) does not understand JPEG comment-blocks. Removes comment block to avoid getting 'Corrupt JPEG data: x extraneous bytes before marker 0xe0.'

static bool camera::Helpers::storeImageToFile ( std::vector< uint8_t > const &  buffer, std::string const &  file_name  )

inlinestatic

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The documentation for this class was generated from the following file:

• /build/rock-master-18.09-drivers-camera-usb-0.20180212/src/helpers.h