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Improvement of the Watermark Detector Perfomance Using Image Enhancement Filters (CROSBI ID 585998)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Poljičak, Ante ; Mandić, Lidija ; Strgar Kurečić, Maja Improvement of the Watermark Detector Perfomance Using Image Enhancement Filters // PROCEEDINGS IWSSIP 2012 / Rupp, Markus ; Wistawel, Bernhard (ur.). Beč, 2012. str. 74-77

Podaci o odgovornosti

Poljičak, Ante ; Mandić, Lidija ; Strgar Kurečić, Maja

engleski

Improvement of the Watermark Detector Perfomance Using Image Enhancement Filters

In this paper we consider the influence of some image processing techniques on the watermark detection rate. Even today’s state of the art watermarking methods are still very sensitive to complex degradation attacks such are JPEG compression, or printscan process, so the detection rate of a watermark method decreases considerably after such attacks on a watermarked image. To improve the detection rate we reduce the degradation of the image by using unsharp, Laplacian or deconvolution filter. For the experiment dataset of 1000 images were watermarked and then compressed or printed and scanned. Degraded images were enhanced using unsharp, Laplacian and blind deconvolution filter. The watermark detection rate before and after enhancement was measured and compared. The results show that the enhancement filtering improves the watermark detection rate for almost 10 % for print scan attack and 8 % for JPEG compression.

Image Watermarking; unsharp filter; deconvolution; PS process; watermark detection rate

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Podaci o prilogu

74-77.

2012.

objavljeno

Podaci o matičnoj publikaciji

PROCEEDINGS IWSSIP 2012

Rupp, Markus ; Wistawel, Bernhard

Beč:

978-3-200-02588-2

Podaci o skupu

19th International Conference on Systems, Signals and Image Processing, IWSSIP 2012

predavanje

11.04.2012-13.04.2012

Beč, Austrija

Povezanost rada

Grafička tehnologija