diff --git a/configs/rec/rec_r32_gaspin_bilstm_att.yml b/configs/rec/rec_r32_gaspin_bilstm_att.yml
index e8235415c7e75addfc5599e181844a227d1e4eff..f7c1b813fcd6d0553027c3c6d0f7191e950c63ad 100644
--- a/configs/rec/rec_r32_gaspin_bilstm_att.yml
+++ b/configs/rec/rec_r32_gaspin_bilstm_att.yml
@@ -75,7 +75,7 @@ Train:
     data_dir: ./train_data/ic15_data/
     label_file_list: ["./train_data/ic15_data/rec_gt_train.txt"]
     transforms:
-      - NRTRDecodeImage: # load image
+      - DecodeImage: # load image
           img_mode: BGR
           channel_first: False
       - SPINAttnLabelEncode: # Class handling label
@@ -98,7 +98,7 @@ Eval:
     data_dir: ./train_data/ic15_data
     label_file_list: ["./train_data/ic15_data/rec_gt_test.txt"]
     transforms:
-      - NRTRDecodeImage: # load image
+      - DecodeImage: # load image
           img_mode: BGR
           channel_first: False
       - SPINAttnLabelEncode: # Class handling label
diff --git a/ppocr/data/imaug/rec_img_aug.py b/ppocr/data/imaug/rec_img_aug.py
index 3f002173d105130f90ebac7e33d2bad9f081f1c1..c5d8a3b2fd773a1877a788401a926d7fbca07adf 100644
--- a/ppocr/data/imaug/rec_img_aug.py
+++ b/ppocr/data/imaug/rec_img_aug.py
@@ -274,6 +274,7 @@ class SPINRecResizeImg(object):
 
     def __call__(self, data):
         img = data['image']
+        img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
         # different interpolation type corresponding the OpenCV
         if self.interpolation == 0:
             interpolation = cv2.INTER_NEAREST
@@ -294,12 +295,9 @@ class SPINRecResizeImg(object):
         img = np.expand_dims(img, -1)
         img = img.transpose((2, 0, 1))
         # normalize the image
-        to_rgb = False
         img = img.copy().astype(np.float32)
         mean = np.float64(self.mean.reshape(1, -1))
         stdinv = 1 / np.float64(self.std.reshape(1, -1))
-        if to_rgb:
-            cv2.cvtColor(img, cv2.COLOR_BGR2RGB) 
         img -= mean
         img *= stdinv
         data['image'] = img
diff --git a/test_tipc/configs/rec_r32_gaspin_bilstm_att/rec_r32_gaspin_bilstm_att.yml b/test_tipc/configs/rec_r32_gaspin_bilstm_att/rec_r32_gaspin_bilstm_att.yml
index 3999ecda8bfca5d1c92daa198bdedc9cd4f9732e..a08efe579642e3dc959a568a7ca40c8ca3f8614c 100644
--- a/test_tipc/configs/rec_r32_gaspin_bilstm_att/rec_r32_gaspin_bilstm_att.yml
+++ b/test_tipc/configs/rec_r32_gaspin_bilstm_att/rec_r32_gaspin_bilstm_att.yml
@@ -76,7 +76,7 @@ Train:
     data_dir: ./train_data/ic15_data/
     label_file_list: ["./train_data/ic15_data/rec_gt_train.txt"]
     transforms:
-      - NRTRDecodeImage: # load image
+      - DecodeImage: # load image
           img_mode: BGR
           channel_first: False
       - SPINAttnLabelEncode: # Class handling label
@@ -99,7 +99,7 @@ Eval:
     data_dir: ./train_data/ic15_data
     label_file_list: ["./train_data/ic15_data/rec_gt_test.txt"]
     transforms:
-      - NRTRDecodeImage: # load image
+      - DecodeImage: # load image
           img_mode: BGR
           channel_first: False
       - SPINAttnLabelEncode: # Class handling label
diff --git a/tools/export_model.py b/tools/export_model.py
index afecbff8cbb834a5aa5ef3ea1448cf04fbd8c3bb..4855c53a978706c52feaebeb7b3649a71bd66b8e 100755
--- a/tools/export_model.py
+++ b/tools/export_model.py
@@ -91,7 +91,7 @@ def export_single_model(model,
         ]
         # print([None, 3, 32, 128])
         model = to_static(model, input_spec=other_shape)
-    elif arch_config["algorithm"] == "NRTR":
+    elif arch_config["algorithm"] == "NRTR" or arch_config["algorithm"] == "SPIN":
         other_shape = [
             paddle.static.InputSpec(
                 shape=[None, 1, 32, 100], dtype="float32"),
diff --git a/tools/infer/predict_rec.py b/tools/infer/predict_rec.py
index 7f9aea09d4269b80d4eb4136824499ccc80e23b8..5a8cb84f758c9a364fba17500318fa1a93283c0e 100755
--- a/tools/infer/predict_rec.py
+++ b/tools/infer/predict_rec.py
@@ -81,7 +81,6 @@ class TextRecognizer(object):
                 "character_dict_path": args.rec_char_dict_path,
                 "use_space_char": args.use_space_char
             }
-
         elif self.rec_algorithm == "SPIN":
             postprocess_params = {
                 'name': 'SPINAttnLabelDecode',
@@ -362,6 +361,8 @@ class TextRecognizer(object):
                     norm_img_batch.append(norm_img)
                 elif self.rec_algorithm == 'SPIN':
                     norm_img = self.resize_norm_img_spin(img_list[indices[ino]])
+                    norm_img = norm_img[np.newaxis, :]
+                    norm_img_batch.append(norm_img)
                 elif self.rec_algorithm == "ABINet":
                     norm_img = self.resize_norm_img_abinet(
                         img_list[indices[ino]], self.rec_image_shape)