#include "ImageMultiOutputRed.h"
#include <vector>

using namespace std;

ImageMultiOutputRed::ImageMultiOutputRed(short channelIndex)
{
	m_channelIndex = channelIndex;
}

ImageMultiOutputRed::~ImageMultiOutputRed(void)
{
}

std::vector<cv::Mat> ImageMultiOutputRed::apply(cv::Mat& pDib)
{
	std::vector<cv::Mat> retMats;
	if (pDib.empty())
		return retMats;
	retMats.push_back(pDib);
	filterColor(pDib, m_channelIndex);
	retMats.push_back(pDib);
	return retMats;
}

void ImageMultiOutputRed::filterColor(cv::Mat& image, short channel)
{
	if (image.channels() == 1)
		return;

	cv::extractChannel(image, image, channel);
}