word_renderer.py 文件源码

def resize_image(im, r=None, newh=None, neww=None, filtering=Image.BILINEAR):
    dt = im.dtype
    I = Image.fromarray(im)
    if r is not None:
        h = im.shape[0]
        w = im.shape[1]
        newh = int(round(r*h))
        neww = int(round(r*w))
    if neww is None:
        neww = int(newh*im.shape[1]/float(im.shape[0]))
    if newh > im.shape[0]:
        I = I.resize([neww, newh], Image.ANTIALIAS)
    else:
        I.thumbnail([neww, newh], filtering)
    return n.array(I).astype(dt)