IMPLEMENTATION OF IMAGE FUSION METHOD FOR WATERMARK ON COLOR IMAGE USING WAVELET TRANSFORMATION DOMAIN

Along with the development of computer technology, digital data especially data in the form of digital images, which caused new problems that was copyright issues was used. to show the originality of the creators creativity in his work. In order to protect these rights, researchers applied watermarking on digital color images using wavelet transforms. This transformation could divide the image into multiple sub-domains by using low filters and high filters. Part of the low frequency image represented the fine part of the image while the high frequency part. accommodate edge information and image textures. By manipulating the image wavelet coofisien to hide the watermark allows it to be used as a labeling of the copyright of a digital image. This research used 24-bit BMP format image with 128x128 dimension for each parent image and watermark image which used discrete wavelet transform one level from daubechies family to generate watermarked image. The watermarking test consisted of two parts: the visibility test which required that the watermarked image should be slightly changed from its parent image. The equation called similarity was used to know quality of watermarked. The second test was a resistance test that used SNR (Signal to Noise Ratio) which was usually used to assess the noise in the signal but in this research will be used to assess the freshness of the image. According to the similarity test and SNR to the watermarked resistance image of JPEG compression, cropping image and grayscale for the invisible and visible watermarking can be concluded that the watermarking technique in this research is resistant to JPEG Compression, cropping image and grayscale covertion.

1.  UEU-Article-13287-5_0152.pdf - 1057 KB

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