diff --git a/server/visualdl/lib.py b/server/visualdl/lib.py
index c86fe14643eb8804af102004eb6528a7f87fa80c..e22cd07a7e7f7066f3a43bd65109170bec96a878 100644
--- a/server/visualdl/lib.py
+++ b/server/visualdl/lib.py
@@ -21,6 +21,18 @@ def get_scalar_tags(storage, mode):
     return result
 
 
+def get_scalar(storage, mode, tag):
+    reader = storage.as_mode(mode)
+    scalar = reader.scalar(tag)
+
+    records = scalar.records()
+    ids = scalar.ids()
+    timestamps = scalar.timestamps()
+
+    result = zip(timestamps, ids, records)
+    return result
+
+
 def get_image_tags(storage, mode):
     result = {}
 
@@ -31,16 +43,17 @@ def get_image_tags(storage, mode):
         result[mode] = {}
         for tag in reader.tags('image'):
             image = reader.image(tag)
-            if image.num_samples() == 1:
+            if image.num_samples() <= 1:
                 result[mode][tag] = {
-                    'displayName': mage.caption(),
+                    'displayName': image.caption(),
                     'description': "",
                     'samples': 1,
                 }
             else:
                 for i in xrange(image.num_samples()):
-                    result[mode][tag + '/%d' % i] = {
-                        'displayName': image.caption(),
+                    caption = tag + '/%d' % i
+                    result[mode][caption] = {
+                        'displayName': caption,
                         'description': "",
                         'samples': 1,
                     }
@@ -51,6 +64,7 @@ def get_image_tag_steps(storage, mode, tag):
     # remove suffix '/x'
     res = re.search(r".*/([0-9]+$)", tag)
     step_index = 0
+    origin_tag = tag
     if res:
         tag = tag[:tag.rfind('/')]
         step_index = int(res.groups()[0])
@@ -65,7 +79,7 @@ def get_image_tag_steps(storage, mode, tag):
         query = urllib.urlencode({
             'sample': 0,
             'index': i,
-            'tag': tag,
+            'tag': origin_tag,
             'run': mode,
         })
         res.append({
diff --git a/server/visualdl/run.sh b/server/visualdl/run.sh
index 227f596c4bb273387203d5f333efc3c2da022271..b67a4d339e74d206b0ed3f2d3d123da44a128b3c 100644
--- a/server/visualdl/run.sh
+++ b/server/visualdl/run.sh
@@ -2,5 +2,7 @@
 set -ex
 
 export PYTHONPATH="$(pwd)/..:/home/superjom/project/VisualDL/build/visualdl/logic:/home/superjom/project/VisualDL/visualdl/python"
+export FLASK_APP=visual_dl.py
+export FLASK_DEBUG=1
 
-python visual_dl.py --logdir ./tmp/mock --host 172.23.233.68
+python visual_dl.py --logdir ./tmp/mock --host 172.23.233.68 --port 8041
diff --git a/server/visualdl/visual_dl.py b/server/visualdl/visual_dl.py
index 98b1d87da7715fdf7403e3007b75dbb0d4967cf8..953b0203553c6a4c48d654a14e929d537fa73bcd 100644
--- a/server/visualdl/visual_dl.py
+++ b/server/visualdl/visual_dl.py
@@ -95,7 +95,8 @@ def runs():
 
 
 @app.route("/data/plugin/scalars/tags")
-def tags():
+def scalar_tags():
+    mode = request.args.get('mode')
     is_debug = bool(request.args.get('debug'))
     if is_debug:
         result = mock_tags.data()
@@ -107,7 +108,8 @@ def tags():
 
 
 @app.route("/data/plugin/images/tags")
-def tags():
+def image_tags():
+    mode = request.args.get('mode')
     result = lib.get_image_tags(storage, mode)
     print 'tags', result
     result = gen_result(0, "", result)
@@ -120,39 +122,33 @@ def scalars():
     tag = request.args.get('tag')
     is_debug = bool(request.args.get('debug'))
     if is_debug:
-        result = gen_result(0, "", mock_data.sequence_data())
+        result =  mock_data.sequence_data()
     else:
-        reader = storage.as_mode(run)
-        scalar = reader.scalar(tag)
-
-        records = scalar.records()
-        ids = scalar.ids()
-        timestamps = scalar.timestamps()
-
-        result = zip(timestamps, ids, records)
-        result = gen_result(0, "", result)
+        result = lib.get_scalar(storage, run, tag)
 
+    result = gen_result(0, "", result)
     return Response(json.dumps(result), mimetype='application/json')
 
 
 @app.route('/data/plugin/images/images')
 def images():
-    run = request.args.get('run')
-    tag = request.args.get('tag')
+    mode = request.args.get('run')
+    #tag = request.args.get('tag')
+    tag = request.args.get('displayName')
 
-    res = lib.gen_image_tag_steps(storage, mode, tag)
+    result = lib.get_image_tag_steps(storage, mode, tag)
 
     return Response(json.dumps(result), mimetype='application/json')
 
 
 @app.route('/data/plugin/images/individualImage')
 def individual_image():
-    run = request.args.get('run')
+    mode = request.args.get('run')
     tag = request.args.get('tag')  # include a index
-    index = request.args.get('index')  # index of step
+    step_index = request.args.get('index')  # index of step
     offset = 0
 
-    imagefile = lib.get_invididual_image(storage, mode, tag)
+    imagefile = lib.get_invididual_image(storage, mode, tag, step_)
     response = send_file(
         imagefile, as_attachment=True, attachment_filename='img.png')
     return response
@@ -160,4 +156,4 @@ def individual_image():
 
 if __name__ == '__main__':
     logger.info(" port=" + str(options.port))
-    app.run(debug=False, host=options.host, port=options.port)
+    app.run(debug=True, host=options.host, port=options.port)