使用0pen CV高斯模糊时的Err0r

Question

我有一个多页.tif文件，我需要从中提取文本。我试图应用Gaussian blur来提高其质量，然后应用Tesseract OCR来提取文本。应用高斯模糊时出现错误

  

TypeError：不支持src数据类型= 0

代码

from PIL import Image, ImageSequence
from tesserocr import PyTessBaseAPI
import numpy as np
import pycountry
import cv2

with PyTessBaseAPI() as api:
    img = Image.open('sample.tif')

    for i, page in enumerate(ImageSequence.Iterator(img)):
        page2 = np.asarray(page)

        # Gaussian Blur
        imgG = cv2.GaussianBlur(page2, (5,5), 0)  # <---- ERROR

        # Tesseract OCR
        api.SetImage(imgG)
        text = api.GetUTF8Text()