A Secured Frame Selection Based Video Watermarking Technique to Address Quality Loss of Data: Combining Graph Based Transform, Singular Valued Decomposition, and Hyperchaotic Encryption
Algorithm 1
Frame selection algorithm.
Input: T ⟵ No. of Frames, K ⟵ Mean(T), S ⟵ Std Deviation
Kb ⟵ K + αS
FDk ⟵ Frame difference
Output-Selected T
(1)
for i ⟵ 1 to T
(2)
Read (T) and store in variables
(3)
Compute the difference amongst frames and group them in different groups and store in FDk.
(4)
if (FDk > Kb)
(5)
Select and group them
(6)
Apply random key amongst frames from different groups and write them to disk
