Example of one pair of calcareous algae samples.

Abstract

<p>In the top row the original images recorded at T2, T5 and T9 are shown. In the middle row the segmentation results are highlighted and in the lower row the live calcareous algae relative size () and hue (), starting from 10 (slightly orange red) to 0 (red), are presented. The samples were exposed to (a partially covered sample), and .</p