64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
#include "applyclahe.h"
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#include <QDebug>
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#include <opencv2/highgui.hpp>
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ApplyCLAHE::ApplyCLAHE()
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{
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}
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void ApplyCLAHE::loadFile(const QString &path)
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{
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cv::Mat tmp;
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tmp = cv::imread(path.toLocal8Bit().data(), cv::IMREAD_COLOR | cv::IMREAD_ANYDEPTH);
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int type = tmp.depth();
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_scale = type==CV_8U ? 1.0/255 : 1.0/65535;
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tmp.convertTo(tmp, CV_32F, _scale);
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cv::cvtColor(tmp, tmp, cv::COLOR_BGR2YCrCb);
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cv::split(tmp, _image);
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_image[0].convertTo(_lumImage, type, 1/_scale);
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}
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void ApplyCLAHE::saveFile(const QString &path)
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{
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cv::Mat tmp;
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cv::merge(_image, 3, tmp);
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cv::cvtColor(tmp, tmp, cv::COLOR_YCrCb2BGR);
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tmp.convertTo(tmp, _lumImage.depth(), 1/_scale);
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cv::imwrite(path.toLocal8Bit().data(), tmp);
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}
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void ApplyCLAHE::apply(float clipLimit, int kernelSize)
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{
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cv::Mat lum;
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cv::Ptr<cv::CLAHE> clahe = cv::createCLAHE(clipLimit, cv::Size(_lumImage.cols/kernelSize, _lumImage.rows/kernelSize));
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clahe->apply(_lumImage, lum);
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lum.convertTo(_image[0], CV_32F, _scale);
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double min, max;
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cv::minMaxLoc(_image[0], &min, &max);
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qDebug() << min << max << clipLimit << kernelSize;
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}
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QPixmap ApplyCLAHE::getImage() const
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{
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cv::Mat tmp;
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cv::merge(_image, 3, tmp);
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cv::cvtColor(tmp, tmp, cv::COLOR_YCrCb2RGB);
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tmp.convertTo(tmp, CV_8U, 255);
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QImage ret(tmp.data, tmp.cols, tmp.rows, tmp.step1(), QImage::Format_RGB888);
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//ret.bits();//perform deep copy of tmp.data pointer
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return QPixmap::fromImage(ret);
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}
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QPixmap ApplyCLAHE::getLumImage() const
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{
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cv::Mat tmp;
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_image[0].convertTo(tmp, CV_8U, 2.55);
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QImage ret(tmp.data, tmp.cols, tmp.rows, tmp.step1(), QImage::Format_Grayscale8);
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return QPixmap::fromImage(ret);
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}
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bool ApplyCLAHE::imageLoaded() const
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{
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return _lumImage.ptr();
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}
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