diff --git a/hgdriver/hgdev/image_process.cpp b/hgdriver/hgdev/image_process.cpp
index 9777e00..d2b35e2 100644
--- a/hgdriver/hgdev/image_process.cpp
+++ b/hgdriver/hgdev/image_process.cpp
@@ -554,6 +554,7 @@ namespace hg_imgproc
 				catch (const std::exception& e)
 				{
 					LOG_INFO(LOG_LEVEL_FATAL, e.what());
+					throw(e);	// 继续抛到上层处理。
 				}
 			}
 			buffs.clear();