Reintam, GeorgTartu Ülikool. Loodus- ja täppisteaduste valdkondTartu Ülikool. Tehnoloogiainstituut2021-06-212021-06-212021http://hdl.handle.net/10062/72653This thesis objective is to provide a robust watermarking algorithm to protect digital images. The proposed algorithm is using wavelet-based watermarking in which we are investigating how embedding in high-frequency subbands and low-frequency subbands would affect the robustness of the watermark while facing typical signal processing attacks.engopenAccessAttribution-NonCommercial-NoDerivatives 4.0 InternationalWatermarkQR DecompositionSVDNon-blindmagistritöödThesis