Fig. 1 illustrates the two main components of the proposed mobile platform for estimating the amount of chlorine in water. The first part is a portable closed chamber with an opaque bottle cover.
It is simply designed in order to provide a fixed illumination, an object holder, and a reference scene at a fixed distance from the 2D detection plane.
Due to the opaque bottle cover, this module inherently eliminates the unwanted effect from the variations in the environmental illumination.
The second part is a smart mobile device, either a smart mobile phone or a tablet, embedded with our color analysis algorithm. Inside the first part of our mobile platform contains white light sources, a sheet of white diffuser, a flat reflective surface, an ON/OFF switch, and a set of batteries. On the top cover of the first part, there are an object holder and an observing window.