synthgen.py 文件源码

def viz_textbb(fignum,text_im, bb_list,alpha=1.0):
    """
    text_im : image containing text
    bb_list : list of 2x4xn_i boundinb-box matrices
    """
    plt.close(fignum)
    plt.figure(fignum)
    plt.imshow(text_im)
    plt.hold(True)
    H,W = text_im.shape[:2]
    for i in xrange(len(bb_list)):
        bbs = bb_list[i]
        ni = bbs.shape[-1]
        for j in xrange(ni):
            bb = bbs[:,:,j]
            bb = np.c_[bb,bb[:,0]]
            plt.plot(bb[0,:], bb[1,:], 'r', linewidth=2, alpha=alpha)
    plt.gca().set_xlim([0,W-1])
    plt.gca().set_ylim([H-1,0])
    plt.show(block=False)