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calyp/modules/ShapeDetection.cpp
T

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/* This file is a part of Calyp project
* Copyright (C) 2014-2021 by Joao Carreira (jfmcarreira@gmail.com)
* Luis Lucas (luisfrlucas@gmail.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/**
* \file ShapeDetection.cpp
*/
#include "ShapeDetection.h"
#include <cstdlib>
//#include <opencv2/video/video.hpp>
using cv::Mat;
using cv::Ptr;
using namespace cv::saliency;
ShapeDetection::ShapeDetection()
: m_rng( 12345 )
{
/* Module Definition */
m_iModuleAPI = CLP_MODULE_API_2;
m_iModuleType = ClpModuleType::FrameProcessing;
m_pchModuleCategory = "Utilities";
m_uiNumberOfFrames = 1;
m_uiModuleRequirements = ClpModuleFeature::NewWindow;
m_bConvertToGray = false;
/* Module Definition */
m_pchModuleName = "ShapeDetection";
m_pchModuleLongName = "Shape detection";
m_pchModuleTooltip = "Detect shapes in images";
}
cv::Mat* ShapeDetection::create_using_opencv( const std::vector<Mat>& apcMatList )
{
m_resultImage = std::make_unique<Mat>( apcMatList[0].rows, apcMatList[0].cols, CV_8UC1 );
return m_resultImage.get();
}
Mat* ShapeDetection::process_using_opencv( const std::vector<Mat>& apcMatList )
{
Mat canny_output;
cv::Canny( apcMatList[0], canny_output, 30, 100 );
std::vector<std::vector<cv::Point> > contours;
findContours( canny_output, contours, cv::RETR_TREE, cv::CHAIN_APPROX_SIMPLE );
std::vector<std::vector<cv::Point> > hull( contours.size() );
for( size_t i = 0; i < contours.size(); i++ )
{
cv::convexHull( contours[i], hull[i] );
}
for( size_t i = 0; i < contours.size(); i++ )
{
cv::Scalar color = cv::Scalar( m_rng.uniform( 0, 256 ), m_rng.uniform( 0, 256 ), m_rng.uniform( 0, 256 ) );
cv::drawContours( *m_resultImage, contours, (int)i, color );
cv::drawContours( *m_resultImage, hull, (int)i, color );
}
return m_resultImage.get();
}