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This paper proposes an image steganography for hiding secret images. The objective of the proposed work is to increase the embedding capacity while ensuring the security of the image. This has been addressed using two levels of processing. First is the application of Genetic Algorithm (GA) as ‘before embedding hiding technique’ which tries to identify suitable places in cover image where embedding...
This paper presents a new approach for digital Speech Steganography and watermarking in the speech signal. In the proposed approach, Quantization index modulation is applied on one of the speech signal feature called as line spectral frequency to indicate the pattern of watermark in each frame of the speech signal. Steganographic data or watermarked information is conveyed through the silence part...
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