image.py 文件源码

def __call__(self, img):
        scale_factor = self.max_width/float(img.shape[1])
        if scale_factor <= 1:
            img_small = transform.rescale(img, scale_factor, mode='constant')
        else:
            scale_factor = 1.0
            img_small = img
        return img_small, scale_factor