Effect of Protan Recoloring Algorithm on Inserted Watermark in Presence of the Superimposed AWGN
| Autor: | MILIVOJEVIC, Zoran, PRLINCEVIC, Bojan |
|---|---|
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Volume: 21, Issue: 116-124 The Eurasia Proceedings of Science Technology Engineering and Mathematics |
| ISSN: | 2602-3199 |
| DOI: | 10.55549/epstem.1224991 |
| Popis: | In this paper, the effect of the protan recoloring algorithm on an image with an inserted watermarkis analyzed. In addition, the effect of degradation of the quality of the recolored image due to the insertion ofwatermarks and superimposed AWGN was also analyzed. In the first part of the paper, the effect of color visiondeficiency, as a consequence of anomalies in L cones, which is designated as protanomaly (protanopia), isdescribed. People with protanopia do not see a wide range of colors because the colors from the L channel aremissing. After that, the recoloring algorithm, which performs recoloring of the image, so that, in protan persons,the visible spectrum of colors is expanded, is described. Then, the algorithm for inserting a watermark, in orderto protect copyrights, is described. In the second part of the work, the Experiment, in which the quality of therecoloring image was tested, as well as the quality of the extracted watermark, was described. The results of theexperiment are shown with pictures and tables. By applying a comparative analysis of the results of theexperiment, using objective (MSE, PSNR, NC and SSIM) and subjective (visual inspection) methods, theinsertion factor of the watermark, α, which preserves the quality of the recoloring image as well as the quality ofthe extracted watermark, was determined. Visual inspection determined the SNR at which visible imagedegradation and watermarks occur. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|