[Config] Support IC15_1811 (#1556)

* [Config] Update IC15 recog cfg

* Update dataset_zoo/icdar2015/textrecog.py

Co-authored-by: liukuikun <24622904+Harold-lkk@users.noreply.github.com>

Co-authored-by: liukuikun <24622904+Harold-lkk@users.noreply.github.com>

dataset_zoo/icdar2015/textrecog.py

@@ -1,3 +1,6 @@
+# This configuration prepares the ICDAR15 1811 and 2077
+# version, and uses ICDAR15 2077 version by default.
+# Read https://arxiv.org/pdf/1904.01906.pdf for more info.
 data_root = 'data/icdar2015'
 cache_path = 'data/cache'
 
@@ -30,7 +33,18 @@ data_obtainer = dict(
             md5='d7a71585f4cc69f89edbe534e7706d5d',
             split=['test'],
             content=['annotation'],
-            mapping=[['ic15_textrecog_test_gt.txt', 'annotations/test.txt']])
+            mapping=[['ic15_textrecog_test_gt.txt', 'annotations/test.txt']]),
+        # 3. The 1811 version discards non-alphanumeric character images and
+        # some extremely rotated, perspective-shifted, and curved images for
+        # evaluation
+        dict(
+            url='https://download.openmmlab.com/mmocr/data/1.x/recog/'
+            'icdar_2015/textrecog_test_1811.json',
+            save_name='textrecog_test_1811.json',
+            md5='8d218ef1c37540ea959e22eeabc79ae4',
+            split=['test'],
+            content=['annotation'],
+        ),
     ])
 
 data_converter = dict(
@@ -40,3 +54,11 @@ data_converter = dict(
     gatherer=dict(type='mono_gather', mapping="f'{split}.txt'"),
     parser=dict(type='ICDARTxtTextRecogAnnParser', encoding='utf-8-sig'),
     dumper=dict(type='JsonDumper'))
+
+config_generator = dict(
+    type='TextRecogConfigGenerator',
+    data_root=data_root,
+    test_anns=[
+        dict(ann_file='textrecog_test.json'),
+        dict(dataset_postfix='1811', ann_file='textrecog_test_1811.json')
+    ])