Water quality assessment by image processing

We deal with a water quality assessment using an image processing methods in this article. Our suggested method for measurement of the water quality uses two well-known biological organisms sensitive to water toxicity. Their names are Daphnia magna and Lemna minor and they are frequently used for a water analysis from an ecotoxicology point of view. In our design, these two organisms are continuously scanned in separated vessels by two cameras and acquired images are then processed autonomously. There are employed methods of a colour-space transformation and analysis and a motion analysis in an image processing stage. Finally, an indicator of a relative water quality is computed on a basis of extracted features from the acquired images.

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