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163 | /* ============================================================
*
* This file is a part of digiKam project
* https://www.digikam.org
*
* Date : 2010-06-16
* Description : Face pre-processing CLI tool
*
* SPDX-FileCopyrightText: 2010 by Aditya Bhatt <adityabhatt1991 at gmail dot com>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*
* ============================================================ */
// Qt includes
#include <QApplication>
#include <QDir>
#include <QLabel>
#include <QImage>
#include <QElapsedTimer>
// Local includes
#include "digikam_debug.h"
#include "qtopencv.h"
#include "tantriggspreprocessor.h"
using namespace Digikam;
// --------------------------------------------------------------------------------------------------
QStringList toPaths(char** const argv, int startIndex, int argc)
{
QStringList files;
for (int i = startIndex ; i < argc ; ++i)
{
files << QString::fromLocal8Bit(argv[i]);
}
return files;
}
QList<cv::Mat> toImages(const QStringList& paths)
{
QList<cv::Mat> images;
for (const QString& path : std::as_const(paths))
{
QByteArray s = path.toLocal8Bit();
images << cv::imread(std::string(s.data()),
#if OPENCV_TEST_VERSION(3,99,0)<--- failed to evaluate #if condition, undefined function-like macro invocation: OPENCV_TEST_VERSION( ... )<--- failed to evaluate #if condition, undefined function-like macro invocation: OPENCV_TEST_VERSION( ... )
CV_LOAD_IMAGE_GRAYSCALE
#else
cv::IMREAD_GRAYSCALE
#endif
);
}
return images;
}
// --------------------------------------------------------------------------------------------------
class Q_DECL_HIDDEN OpenCVSideBySideDisplay
{
public:
explicit OpenCVSideBySideDisplay(int rows, int uiSize = 200)
: bigImage(cv::Mat::zeros(uiSize * rows, 2 * uiSize, CV_8UC3)),
uiSize(uiSize)
{
}
void add(const cv::Mat& left, const cv::Mat& right)
{
// Draw images side-by-side for later display.
QSize size(left.cols, left.rows);
size.scale(uiSize, uiSize, Qt::KeepAspectRatio);
cv::Size scaleSize(size.width(), size.height());
const int top = currentRow * uiSize;
cv::Mat scaledLeft;
cv::Mat scaledRight;
cv::resize(left, scaledLeft, scaleSize);
cv::resize(right, scaledRight, scaleSize);
if (scaledLeft.channels() == 1)
{
cv::cvtColor(scaledLeft, scaledLeft, CV_GRAY2BGR);
}
if (scaledRight.channels() == 1)
{
cv::cvtColor(scaledRight, scaledRight, CV_GRAY2BGR);
}
scaledLeft.copyTo(bigImage.colRange(0, scaledLeft.cols).rowRange(top, top + scaledLeft.rows));
scaledRight.copyTo(bigImage.colRange(uiSize, uiSize + scaledRight.cols).rowRange(top, top + scaledRight.rows));
++currentRow;
}
void show()
{
QLabel label;
label.setPixmap(QtOpenCV::cvMatToQPixmap(bigImage));
label.show();
}
public:
cv::Mat bigImage;
const int uiSize = 0;
int currentRow = 0;
};
// --------------------------------------------------------------------------------------------------
int main(int argc, char** argv)
{
if (argc < 2)
{
qCDebug(DIGIKAM_TESTS_LOG) << "Bad Arguments!!!\nUsage:" << argv[0] << "preprocess <image1> <image2> ...";
return 0;
}
QApplication app(argc, argv);
QStringList paths = toPaths(argv, 1, argc);
QList<cv::Mat> images = toImages(paths);
QElapsedTimer timer;
timer.start();
TanTriggsPreprocessor preprocessor;
OpenCVSideBySideDisplay display(images.size());
for (const cv::Mat& image : std::as_const(images))
{
qCDebug(DIGIKAM_TESTS_LOG) << "channels " << image.channels();
cv::Mat processed = preprocessor.preprocess(image);
display.add(image, processed);
}
int elapsed = timer.elapsed();
qCDebug(DIGIKAM_TESTS_LOG) << "Preprocessing took" << elapsed << "for" << images.size() << ","
<< ((float)elapsed / images.size()) << "per image";
display.show();
app.exec();
return 0;
}
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