Function:GetChannel

Extracts the specified channel from a multichannel image.

Function

CuviStatus getChannel(const CuviImage& src, CuviImage& dst, const Cuvi32s channel, const CuviStream& stream = CuviStream());

Parameters

Name	Type	Description
src	const CuviImage&	Input Image
dst	CuviImage&	Destination Image
channel	Cuvi32s	Channel number from 0 to (src.channels() - 1)
stream	const CuviStream&	GPU stream ID for execution

Image Type Support

Input	Output
8uC3	8uC1
8uC4	8uC1
16uC3	16uC1
16uC4	16uC1
32fC3	32fC1
32fC4	32fC1

Example

//Creating GPU images CuviImage input = cuvi:io::loadImage(path), output; //Get first channel of the input image cuvi::dataExchange::getChannel(input, output, 0); //The same can be achieved by using the channel fetch operator output = input[0];