modify screenshot for ubuntu installation

README.md

@@ -52,7 +52,7 @@ https://user-images.githubusercontent.com/35001605/211560039-367f27d7-63ab-4342-
 
 ### For Windows
 
-2. Download [YOLOLabel_20211130_v1.1.1](https://github.com/developer0hye/Yolo_Label/releases/download/v1.1.1/YoloLabel_v1.1.1.zip)
+2. Download [YOLOLabel_v1.2.1.zip](https://github.com/developer0hye/Yolo_Label/releases/download/v1.2.1/YoloLabel_v1.2.1.zip)
 
 3. Unzip
 
@@ -60,6 +60,27 @@ https://user-images.githubusercontent.com/35001605/211560039-367f27d7-63ab-4342-
 
 ![image](https://user-images.githubusercontent.com/35001605/111152300-e74b5680-85d3-11eb-8df7-178148548c12.png)
 
+### For Ubuntu 22.04
+
+2. Download [YOLOLabel_v1.2.1.tar](https://github.com/developer0hye/Yolo_Label/releases/download/v1.2.1/YoloLabel_v1.2.1.tar)
+
+3. Unzip and download libraries
+```
+tar -xvf YoloLabel_v1.2.1.tar
+sudo apt update
+sudo apt-get install -y libgl1-mesa-dev
+sudo apt-get install libxcb-*
+sudo apt-get install libxkb*
+```
+
+4. Run YoloLabel.sh
+```
+./YoloLabel.sh
+```
+
+![image](https://user-images.githubusercontent.com/35001605/212230332-7e62bc50-7440-45c8-afc3-faebc0b31318.png)
+
+
 ### For macOS
 
 2. Clone or download the source code of this repository

label_img.cpp

@@ -80,7 +80,6 @@ void label_img::init()
 {
     m_objBoundingBoxes.clear();
     m_bLabelingStarted              = false;
-    m_bVisualizeClassName           = false;
     m_focusedObjectLabel            = 0;
 
     QPoint mousePosInUi = this->mapFromGlobal(QCursor::pos());