IMAHE [ Image processing device for Microplastic Assessment and High quality Evaluation of Water ]



  1. David Elijah Corsini C. Atup
  2. Josefino Nino O. Ligan
  3. Chesyne Danielle G. Pepito

The Philippines


The contamination of microplastics in our environment is considered a global threat to the biodiversity of life. These particles less than 5mm in size are potential health hazards when ingested. To address this issue, we developed an innovative device to initially assess microplastic sizes on-site setting. IMAHE (Image processing device for Microplastics Assessment and Highquality Evaluation of water) has an integrated pocket microscope and Raspberry Pi camera to take images of the samples and use image processing to detect the approximate sizes of microplastic particles in the picture. IMAHE includes a setup of three-layer stackable filter disks functioning as the filtering mechanism and sample container for the microplastic particles. The device components are inside a 3Dprinted casing measuring 99.5 mm in height, 68.5 mm in width, and 34 mm in length. IMAHE’s program utilizes a conversion factor of 1 mm: 680 pixels from the diffraction grating calibration experiment to accurately depict the pixel length of the image and convert it to the particles’ corresponding size in micrometers. The samples used in data collection were verified to be microplastic according to FTIR and SEM analyses data. IMAHE was able to detect microplastics ranging from 29.4- 30.3 µm. Data revealed that IMAHE could successfully detect the approximate sizes of microscopic debris. With the data that IMAHE can collect, it can provide valuable information to researchers in this field, cut short expenses for lab testing, and help educate and raise awareness about plastic dispersion and the environmental effects of microplastics in our environment.