Fix colorful image window level and window width bug.

src/src/QDicomViewer.cpp

@@ -1001,6 +1001,7 @@ void QDicomViewer::openDICOMFromPACS(int err, std::string dirName)
 	}
 }
 
+//TODO: 覆盖逻辑和增加逻辑待补充
 void QDicomViewer::openAndDrawDICOM(const std::string& dicomName, SeriesOpenMode openMode) {
 
     displayThumbnailBar(true);

src/src/base/infinitiViewer.cxx

@@ -1216,6 +1216,11 @@ void infinitiViewer::initCornerInfo(ExtendMedicalImageProperties* pSeries)
 		m_cornerInfo.win_level = (int)wwwl[1];
 		m_cornerInfo.win_width = (int)wwwl[0];
 	}
+	// no preset or color image
+	else{
+        m_cornerInfo.win_level = 128;
+        m_cornerInfo.win_width = 256;
+	}
 
 	char buffer[sizeof(long) * 8 + 1];
 	const char* s = ltoa(pSeries->GetFileNames()->size(), buffer, 10);