clear bbox drawing

app.py

@@ -19,7 +19,7 @@ def inference(img, lang):
     scores = [line[1][1] for line in result]
     
     image = Image.open(img_path).convert('RGB')
-    im_show = draw_ocr(image, boxes, txts, scores,
+    im_show = draw_ocr(image, boxes, txts=None, scores=None, # https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.7/tools/infer/utility.py#L365
                        font_path='simfang.ttf')
     im_show = Image.fromarray(im_show)
     im_show.save('result.jpg')