Update README.md

README.md

@@ -116,7 +116,7 @@ size_categories:
 
 Dataset for the paper: https://opg.optica.org/abstract.cfm?uri=pcAOP-2023-JTu4A.45
 
-Data is measured at 30 cm (except for the in-the-wild mug measurement which is measured at 12 cm), as shown below.
+Data is measured with a computer monitor at 30 cm as shown below (except for the in-the-wild mug measurement which is measured at 12 cm).
 
 ![DigiCam setup](setup.png)