del lable, polish data_reader

ppocr/data/rec/dataset_traversal.py

@@ -170,10 +170,14 @@ class SimpleReader(object):
                     image_file_list = [self.infer_img]
                 elif os.path.isdir(self.infer_img):
                     for single_file in os.listdir(self.infer_img):
-                        if single_file.endswith('png') or single_file.endswith('jpg'):
+                        if single_file.split('.')[
+                            -1] not in ['bmp', 'jpg', 'jpeg', 'png', 'JPEG', 'JPG', 'PNG']:
+                            continue
                         image_file_list.append(os.path.join(self.infer_img, single_file))
                 for single_img in image_file_list:
                     img = cv2.imread(single_img)
+                    if img.shape[-1]==1 or len(list(img.shape))==2:
+                        img = cv2.cvtColor(img, cv2.COLOR_GRAY2BGR)
                     norm_img = process_image(img, self.image_shape)
                     yield norm_img
             with open(self.label_file_path, "rb") as fin:

tools/infer_rec.py

@@ -79,6 +79,10 @@ def main():
     init_model(config, eval_prog, exe)
 
     blobs = reader_main(config, 'test')()
+    infer_img = config['Global']['infer_img']
+    if os.path.isfile(infer_img):
+        infer_list = [infer_img]
+    elif os.path.isdir(infer_img):
         infer_list = os.listdir(config['Global']['infer_img'])
     max_img_num = len(infer_list)
     if len(infer_list) == 0: