Abstract
In present time, information transmission is becoming increasingly different through digitization. But security is a measure concern between information transmissions. Therefore, the digital watermarking technique gives a better method to prevent illegal access, unlike exploitation and allocation and information about the copyright protection of digitized data. It must be strong; therefore, if one part of this is changed then it will be recoverable. Several different methods are provided for embedding and extracting watermarks from the original image. In proposed paper, watermarking is completed by applying the combined approach of Discrete Cosine Transformation (DCT) and Discrete Wavelet Transformation (DWT). DWT technique is applied on the Red color (or R-channel) component of the color image for embedding the watermark. Once completing the embedding process, DCT technique is applied to 8X8 block of the color image. The results of proposed algorithm strongly maintain image quality and also it is sufficient for general image processing tasks.
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Dhaked, D.K. (2021). Combined DCT-DWT Color Image Digital Watermarking Technique. In: Mathur, R., Gupta, C.P., Katewa, V., Jat, D.S., Yadav, N. (eds) Emerging Trends in Data Driven Computing and Communications. Studies in Autonomic, Data-driven and Industrial Computing. Springer, Singapore. https://doi.org/10.1007/978-981-16-3915-9_13
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DOI: https://doi.org/10.1007/978-981-16-3915-9_13
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