nkint

import os, sys
rootdir = sys.argv[1]
for root, subfolders, files in os.walk(rootdir):
    dirs = [ os.path.abspath(rootdir)+ root[1:] + "/" + s for s in subfolders ]
    for d in dirs: print d

nkint

    cv::Mat original = //...

    QImage qtFrame(original.data, original.size().width, original.size().height, original.step, QImage::Format_RGB888);
    qtFrame = qtFrame.rgbSwapped();

    m_GLFrame = QGLWidget::convertToGLFormat(qtFrame);
    
    glColor3f(1, 1, 1);
    glEnable(GL_TEXTURE_2D);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

nkint

    cv::Mat n = ...
    
    QPixmap p = QPixmap::fromImage(QImage((unsigned char*) n.data,
                                   n.cols,
                                   n.rows,
                                   QImage::Format_RGB888));
    p = p.scaledToWidth(500);
    
    label->setPixmap( p );

nkint

import itertools as it

def setness(f):
        setness.calls = dict()
        def decorator(arg):
                seen = setness.calls.get( arg, set() )
                for i in seen: yield i
                for i in f(arg):
                        if i not in seen:
                                seen.add(i)