37 lines
1.1 KiB
C++
37 lines
1.1 KiB
C++
#include "genthumbnail.h"
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#include "../src/rawimage.h"
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#include "../src/loadimage.h"
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int generateThumbnail(const QString &input, const QString &output, uint32_t size)
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{
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ImageInfoData info;
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std::shared_ptr<RawImage> rawImage;
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if(!loadImage(input, info, rawImage, 0))
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return 2;
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if(!rawImage)
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return 3;
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QSize rect(rawImage->width(), rawImage->height());
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rect.scale(size, size, Qt::KeepAspectRatio);
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rawImage->calcStats();
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rawImage->resize(rect.width(), rect.height());
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if(rawImage->imageStats().m_median[0] < rawImage->norm() * 0.2f)
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{
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MTFParam mtfParams = rawImage->calcMTFParams(true);
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rawImage->applySTF(mtfParams);
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}
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rawImage->convertToType(RawImage::UINT8);
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QImage img;
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if(rawImage->channels() == 1)
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img = QImage((const uchar*)rawImage->data(), rawImage->width(), rawImage->height(), rawImage->widthBytes(), QImage::Format_Grayscale8);
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else
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img = QImage((const uchar*)rawImage->data(), rawImage->width(), rawImage->height(), rawImage->widthBytes(), QImage::Format_RGBA8888);
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if(!img.save(output, "png"))
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return 4;
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return 0;
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}
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