Merge pull request #299 from LDOUBLEV/cpu_opt

modify normalization of db_process to speed up

ppocr/data/det/db_process.py

@@ -194,8 +194,12 @@ class DBProcessTest(object):
         img_std = [0.229, 0.224, 0.225]
         im = im.astype(np.float32, copy=False)
         im = im / 255
-        im -= img_mean
-        im /= img_std
+        im[:, :, 0] -= img_mean[0]
+        im[:, :, 1] -= img_mean[1]
+        im[:, :, 2] -= img_mean[2]
+        im[:, :, 0] /= img_std[0]
+        im[:, :, 1] /= img_std[1]
+        im[:, :, 2] /= img_std[2]
         channel_swap = (2, 0, 1)
         im = im.transpose(channel_swap)
         return im

ppocr/data/rec/img_tools.py

@@ -360,7 +360,7 @@ def process_image(img,
         text = char_ops.encode(label)
         if len(text) == 0 or len(text) > max_text_length:
             logger.info(
-                "Warning in ppocr/data/rec/img_tools.py:line106: Wrong data type."
+                "Warning in ppocr/data/rec/img_tools.py:line362: Wrong data type."
                 "Excepted string with length between 1 and {}, but "
                 "got '{}'. Label is '{}'".format(max_text_length,
                                                  len(text), label))