utils.py 文件源码

def polygonize_sk(mask, level):
    contours = measure.find_contours(mask, level)
    polys = []
    for contour in contours:
        if contour.shape[0] < 4:
            continue
        poly = Polygon(shell=contour[:, [1, 0]])
        polys.append(poly)
    polys = MultiPolygon(polys)
    return polys