Function:RGB2Gray

Converts an RGB image to gray scale using fixed or custom transform coefficients

Function

CuviStatus rgb2gray(const CuviImage& src, CuviImage& dst, const CuviStream& stream = CuviStream()); CuviStatus rgb2gray(const CuviImage& src, CuviImage& dst, const CuviScalar& coeffs, const CuviStream& stream = CuviStream());

Parameters

Name Type Description src CuviImage& Input 3 channel image dst CuviImage& Output single channel image coeffs CuviScalar& Custom transformation coefficients stream CuviStream& GPU stream ID for execution

Image Type Support

Input	Output
8uC3	8uC1
16uC3	16uC1
32fC3	32fC1

Sample

Error creating thumbnail: Unable to save thumbnail to destination Color Image

Error creating thumbnail: Unable to save thumbnail to destination Output Gray Image

Example

CuviImage gimg = cuvi::io::loadImage(path), gout; //Convert to gray-scale using standard coefficients cuvi::colorOperations::rgb2gray(gimg,gout); //Convert to gray-scale using custom coefficients CuviScalar coeffs(0.33, 0.33, 0.33); cuvi::colorOperations::rgb2gray(gimg,gout, coeffs);