Smart_pH is a smartphone-based colorimetric analysis system powered by Artificial Neural Networks (ANNs) for fast, accurate, and universal estimation of pH values from indicator strips. The app integrates image processing, machine learning, and a multi-source dataset to ensure robust predictions under diverse lighting and camera conditions.
Open the app and either take a photo of your pH indicator strip using your camera or upload an existing image from your gallery.
Manually drag and position the four color selection boxes to align precisely with your indicator blocks for accurate RGB extraction.
Press “Predict” to analyze the colors via the trained ANN model. The predicted pH value will be displayed with a confidence indicator.