TY - JOUR
T1 - Wavelets and Discrete Cosine Transform for Hidden Information into Images
AU - Orea, Izlian
PY - 2009/2/17
Y1 - 2009/2/17
N2 - In this work we use the Discrete Wavelet Transform in watermarking applications for digital BMP images with the objective is to guarantee some level of security for the copyright. We also compare the results with the Discrete Cosine Transform for the same application. Results are obtained from a number of tests, primarily in order to validate the security level and the robustness of the watermark, but also to prove that the original image suffers only very small variations after the watermark is embedded. We also show how to embed the watermark, where to insert it and the capacity supported for inserting an image.
AB - In this work we use the Discrete Wavelet Transform in watermarking applications for digital BMP images with the objective is to guarantee some level of security for the copyright. We also compare the results with the Discrete Cosine Transform for the same application. Results are obtained from a number of tests, primarily in order to validate the security level and the robustness of the watermark, but also to prove that the original image suffers only very small variations after the watermark is embedded. We also show how to embed the watermark, where to insert it and the capacity supported for inserting an image.
UR - https://www.cambridge.org/core/journals/anziam-journal/article/wavelet-and-discrete-cosine-transforms-for-inserting-information-into-bmp-images/1CF04D3972EC784D67DA8D147A9D1A5F
M3 - Artículo
JO - Sampling Theory in Signal and Image Processing
JF - Sampling Theory in Signal and Image Processing
ER -