Update README.md

README.md

@@ -26,15 +26,36 @@ We used SSIM and Optical Flow to select optimal positions for duplication, inser
 
 The dataset consists of zipped video files in either avi, mp4 or mov formats.
 
+From the original untampered videos:
+- Original.zip (133 videos)
+
+7 sets of manipulated videos were derived:
 - EOP-Frame-Deletion.zip (20 videos)
 - EOP-Frame-Duplication.zip (20 videos)
 - EOP-Frame-Insertion.zip (20 videos)
 - Frame-Deletion.zip (260 videos)
 - Frame-Duplication.zip (291 videos)
 - Frame-Insertion.zip (293 videos)
-- Original.zip (133 videos)
 - Spatial-Tampering.zip (10 videos)
 
+The information regarding the number of tampered frames and the location of tampering is embedded in the filename/title of each tampered video.
+For example, consider the following tampered video: **010_Del_021_030_Shop Banners**
+
+The components of the filename represent the following:  
+**10** represents the number of frames deleted.
+**Del** represents the type of tampering, i.e., **Frame Deletion**.
+**021** represents the location of the tampering (Localization).
+Thus, frames **021 through 030**, including both the 21st and 30th frames, were deleted from the original/untampered video to generate the tampered video.
+
+Similarly if the title of video is: **010_Ins_017_026_Slides**
+
+The components of the filename represent the following:
+**010** represents the number of frames inserted.
+**Ins** represents the type of tampering, i.e., **Frame Insertion**.
+**017** represents the starting location of the insertion.
+**026** represents the ending location of the insertion.
+Therefore, the insertion operation starts at the **17th frame and ends at 26th** frame.
+
 ## Citation [optional]
 
 **BibTeX:**