Update README.md

README.md

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 This toolbox implements a simplified image color correction algorithm in MATLAB Guide...
 No need for deep knowledge of MATLAB programming to run the App.
 
-To Run the GUI;
+
+**To Run the GUI;**
 - use MATLAB command "cd ColorCorrectioGUI_directory"
 - run command "color_calib_UI"
 
-The user can be load a standard color-checker image, use standard char values to compute a color correction matrix, then save or use the color correction matrix to correct any image taken under similar lighting condition with the same camera settings.
-This repository was inherited from QiuJueqin's color-correction-toolbox, https://github.com/QiuJueqin/color-correction-toolbox. Please follow the link above for further description.
-Important toolboxes for smooth running of toolbox;
+User can load a standard color-checker image, use standard chart values to compute a color correction matrix, then save or use the color correction matrix to correct any image taken under similar lighting conditions with the same camera settings.
+
+![Screenshot 2021-07-14 005431](https://user-images.githubusercontent.com/49397327/125485044-9b6f5724-e2ad-4c67-a55c-d57ffdf01948.png)
+
+
+This repository was inherited from **QiuJueqin's** _color-correction-toolbox_, https://github.com/QiuJueqin/color-correction-toolbox. Please follow the link above for further description.
+
+
+**Important** toolboxes for smooth running of toolbox;
 - image processing toolbox
 - optimization toolbox
 
-Future plans
+**Future plans**
 - Auto detect color checker and respective number of patches.
 - Consideration for other color spaces besides 'xyz' and 'sRGB'.