随机填充是你自己写的模块还是第三方库？

随机填充后应该缩小原图和检测框。

# 随机填充
def random_expand(img,
                  gtboxes,
                  max_ratio=1.5,
                  fill=None,
                  keep_ratio=True,
                  thresh=0.5):
    #if random.random() > thresh:
    #    return img, gtboxes

    if max_ratio < 1.0:
        return img, gtboxes

    h, w, c = img.shape
    ratio_x = random.uniform(1, max_ratio)
    if keep_ratio:
        ratio_y = ratio_x
    else:
        ratio_y = random.uniform(1, max_ratio)
    oh = int(h * ratio_y)
    ow = int(w * ratio_x)
    off_x = random.randint(0, ow - w)
    off_y = random.randint(0, oh - h)

    out_img = np.zeros((oh, ow, c))
    if fill and len(fill) == c:
        for i in range(c):
            out_img[:, :, i] = fill[i] * 255.0

    out_img[off_y:off_y + h, off_x:off_x + w, :] = img
    gtboxes[:, 0] = ((gtboxes[:, 0] * w) + off_x) / float(ow)
    gtboxes[:, 1] = ((gtboxes[:, 1] * h) + off_y) / float(oh)
    gtboxes[:, 2] = gtboxes[:, 2] / ratio_x
    gtboxes[:, 3] = gtboxes[:, 3] / ratio_y

    return out_img.astype('uint8'), gtboxes

# 随机填充
def random_expand(img,gtboxes,max_ratio=4.,fill=None,keep_ratio=True,thresh=0.5):
if random.random() > thresh:
return img, gtboxes

if max_ratio < 1.0:
return img, gtboxes

h, w, c = img.shape
ratio_x = random.uniform(1, max_ratio)
if keep_ratio:
ratio_y = ratio_x
else:
ratio_y = random.uniform(1, max_ratio)
oh = int(h * ratio_y)
ow = int(w * ratio_x)
off_x = random.randint(0, ow - w)
off_y = random.randint(0, oh - h)

out_img = np.zeros((oh, ow, c))
if fill and len(fill) == c:
for i in range(c):
out_img[:, :, i] = fill[i] * 255.0

out_img[off_y:off_y + h, off_x:off_x + w, :] = img
gtboxes[:, 0] = ((gtboxes[:, 0] * w) + off_x) / float(ow)
gtboxes[:, 1] = ((gtboxes[:, 1] * h) + off_y) / float(oh)
gtboxes[:, 2] = gtboxes[:, 2] / ratio_x
gtboxes[:, 3] = gtboxes[:, 3] / ratio_y

return out_img.astype('uint8'), gtboxes

不是直接调用的第三方库。图片被随机填充到比它大（1-4）倍的图像中，物体的真实框也会随之移动，好像没有缩小原图和检测框那一步。

好了，我在本地机器上跑一下就没有这种问题了，显示正常

加过任意角度旋转么？有没有让标注框跟随旋转的算法？

缩小不是必须的，图片的输入同一batch统一大小就行。

加过任意角度旋转么？？