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        cv::Mat rgb(mat.size(), CV_32FC3);
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        cv::Mat rgb(mat.size(), CV_32FC3);
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        cv::cvtColor(mat, rgb, cv::COLOR_GRAY2RGB);
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        cv::cvtColor(mat, rgb, cv::COLOR_GRAY2RGB);
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        QImage img((const uchar*)rgb.data, rgb.cols, rgb.rows, rgb.step, QImage::Format_RGB32);
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        QImage img((const uchar*)rgb.data, rgb.cols, rgb.rows, rgb.step, QImage::Format_RGB32);
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        img = img.copy();
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        img = img.copy();
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        return img;
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        return img;
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    } else if(mat.type()==CV_32FC3) {
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        QImage img((const uchar*)mat.data, mat.cols, mat.rows, mat.step, QImage::Format_RGB32);
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        img = img.copy();
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        return img;
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    } else {
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    } else {
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        std::cerr << "SMVideoWidget: cv::Mat could not be converted to QImage!";
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        std::cerr << "SMVideoWidget: cv::Mat could not be converted to QImage!";
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        return QImage();
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        return QImage();
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    }
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    }
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