如果图片有2个或多个块，如何出现多个座标？

import ddddocr
det = ddddocr.DdddOcr(det=False, ocr=False)
  
with open('aa.png', 'rb') as f:
      target_bytes = f.read()
  
with open('bb.png', 'rb') as f:
      background_bytes = f.read()
  
res = det.slide_match(target_bytes, background_bytes)
  
print(res)