diff --git a/configs/test_cam1_face_det_rtsp_server.json b/configs/test_cam1_face_det_rtsp_server.json
index 2c9716f..7d51bf2 100644
--- a/configs/test_cam1_face_det_rtsp_server.json
+++ b/configs/test_cam1_face_det_rtsp_server.json
@@ -24,8 +24,8 @@
           "type": "preprocess",
           "role": "filter",
           "enable": true,
-          "dst_w": 640,
-          "dst_h": 640,
+          "dst_w": 320,
+          "dst_h": 320,
           "dst_format": "rgb",
           "keep_ratio": false,
           "use_rga": true