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A Symbiotic Digital Signage system based on display to display communication

Digital signage (DS) has become a phraseology for recent technology, is gaining massive acceptance to the technology-dependent world. Though the development of DS includes the essence of advertisement purposes, the fusion strategy makes it promising for communication technology. This paper demonstrates a Symbiotic Digital Signage (SDS) system in which one display of DS can be used to communicate with other displays of DS. Data are transmitted to the displays using the steganography process which encircles the display to display communication using the camera on display during the video broadcasting simultaneously. The data hidden in video images are retrieved by analyzing the temporal sequential frame of the same image. The steganography process combines data in images in which the discrete time cosine transform (DCT) is used rather than wavelet transform (WT) because of its obvious advantages over the WT. The performance analysis has been shown with respect to the structural similarity (SSIM) of image, peak signal to noise ratio (PSNR), mean square error (MSE) of combined RGB color and MSE of the RGB color separately.