id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_s7s7uwa7qfbffcltbrcznpprve	Ho Seok Moon	Expert system for low frequency adaptive image watermarking: Using psychological experiments on human image perception	2007	13	.pdf	application/pdf	6902	693	65	This paper proposes a new system for low frequency adaptive image watermarking based on the statistical data from psychological In order to reduce the degrading of image quality, the new approach determines the strength of watermark according to local image characteristics such as brightness and contrast. between the watermark strength and the different levels of image brightness and contrast information. Keywords: Blind image watermarking; Discrete wavelet transform; Psychological experiments; Human image perception; Edge mask In this paper, we propose a new watermarking technique that is not only applicable to images, but also easily expandable to other host controlling the watermark strength with the data associated with brightness and contrast as local image characteristics, without sacrificing the robustness of images. Such a prediction indicates that the impact of embedded watermark on the fidelity of images can vary by the level of brightness and higher level of average brightness and contrast are discerned even at the same strength of watermark embedded.	./cache/work_s7s7uwa7qfbffcltbrcznpprve.pdf	./txt/work_s7s7uwa7qfbffcltbrcznpprve.txt