Image scrambling using sinusoidal transforms for assorted color spaces using Walsh sequency
Tanuja Sarode, Pallavi N. Halarnkar · 2016
Digital images can be secured by using methods of scrambling/encryption. A number of techniques have been proposed to encrypt the digital images. One such technique, which secures the content of the digital image by making it unreadable to the spying eyes, has been proposed in this paper. This paper proposes an image scrambling technique, using transforms for assorted color spaces. A comparison of all the sinusoidal transforms with different color spaces is carried out based on three important parameters Pixel Correlation, Peak average fractional change in pixel value (PAFCPV) and Number of pixel change rate (NPCR).