rle2mask.py

def rle2mask(rle, height, width):
    rle        = [int(xx) for xx in rle.split(' ')]
    offsets, runs = rle[0::2], rle[1::2]
    
    tmp = np.zeros(height * width, dtype=np.uint8)
    for offset, run in zip(offsets, runs):
        tmp[offset:offset + run] = 1
    
    return tmp.reshape(width, height).T