mirror of
https://github.com/jkriege2/JKQtPlotter.git
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528f6fe537
- checked OpenCV-examples and improved OpenCV-copy-tool (now copies as an image column, as appropriate!)
86 lines
3.6 KiB
C++
86 lines
3.6 KiB
C++
/*
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Copyright (c) 2018-2019 Jan W. Krieger (<jan@jkrieger.de>)
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This software is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License (LGPL) as published by
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the Free Software Foundation, either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License (LGPL) for more details.
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You should have received a copy of the GNU Lesser General Public License (LGPL)
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "jkqtplotter/jkqtplotter_imexport.h"
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#include "jkqtplotter/jkqtpdatastorage.h"
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#include <opencv2/core.hpp>
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#ifndef JKQTPOPENCVINTERFACE_H
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#define JKQTPOPENCVINTERFACE_H
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/** \brief add one external column to the datastore. It will be filled with the contents of vector \a data.
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* \ingroup jkqtpopencvinterface
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*
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* \param datastore the datastore to which the <a href="https://opencv.org/">OpenCV</a> matrix shuld be added (as column)
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* \param mat <a href="https://docs.opencv.org/master/d3/d63/classcv_1_1Mat.html">OpenCV-matrix</a> to store here
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* \param name name for the column
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* \param channel to copy from \a mat
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* \return the ID of the newly created column
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*
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* \note You need to define the Macro JKQTPLOTTER_OPENCV_INTERFACE when compiling this lib to enabled this function.
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*/
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inline size_t JKQTPCopyCvMatToColumn(JKQTPDatastore* datastore, const cv::Mat& mat, const QString& name=QString(""), int channel=0);
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////////////////////////////////////////////////////////////////////////////////////////
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namespace JKQTPDatastore_Helper {
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/** \brief internal helper function for JKQTPCopyCvMatToColumn()
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* \ingroup jkqtpopencvinterface
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* \internal */
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template <typename TPixel>
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inline void copyDataFromMat(double* data, const cv::Mat& mat, int channel) {
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size_t r=0;
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const int channels=mat.channels();
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for (int iy=0; iy<mat.rows; iy++ ) {
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const TPixel* row=mat.ptr<TPixel>(iy);
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for (int ix=0; ix<mat.cols; ix++ ) {
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data[r]=jkqtp_todouble(*static_cast<const TPixel*>(&(row[ix*channels+channel])));
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r++;
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}
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}
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}
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}
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inline size_t JKQTPCopyCvMatToColumn(JKQTPDatastore* datastore, const cv::Mat& mat, const QString &name, int channel)
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{
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const size_t N=static_cast<size_t>(mat.cols*mat.rows);
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double* d=static_cast<double*>(malloc(static_cast<size_t>(N)*sizeof(double)));
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if (CV_MAT_DEPTH(mat.type())==CV_64F) JKQTPDatastore_Helper::copyDataFromMat<double>(d, mat, channel);
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else if (CV_MAT_DEPTH(mat.type())==CV_32F) JKQTPDatastore_Helper::copyDataFromMat<float>(d, mat, channel);
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else if (CV_MAT_DEPTH(mat.type())==CV_32S) JKQTPDatastore_Helper::copyDataFromMat<uint32_t>(d, mat, channel);
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else if (CV_MAT_DEPTH(mat.type())==CV_16S) JKQTPDatastore_Helper::copyDataFromMat<int16_t>(d, mat, channel);
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else if (CV_MAT_DEPTH(mat.type())==CV_16U) JKQTPDatastore_Helper::copyDataFromMat<uint16_t>(d, mat, channel);
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else if (CV_MAT_DEPTH(mat.type())==CV_8S) JKQTPDatastore_Helper::copyDataFromMat<int8_t>(d, mat, channel);
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else if (CV_MAT_DEPTH(mat.type())==CV_8U) JKQTPDatastore_Helper::copyDataFromMat<uint8_t>(d, mat, channel);
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else throw std::runtime_error("datatype of cv::Mat not supported by JKQTPDatastore::copyImageToColumn()");
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return datastore->addInternalImageColumn(d, mat.cols, mat.rows, name);
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}
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#endif // JKQTPOPENCVINTERFACE_H
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