Figure 9

Results obtained for a sample tattoo image. Figure a) shows a sample hyperspectral image for k = 300. Figure b) shows reference waveforms obtained based on the spread spectrum curves known from the literature which are the pattern. Figure c) shows a graph $L_D^I\left(i\right),L_D^{\mathit{II}}\left(i\right),L_D^{\mathit{III}}\left(i\right)$ for each i-th pixel. Figure d) shows the results of segmentation performed based on the algorithm described in the paper.