The physical properties of materials provide some of the most fundamental information regarding the
material characterization. Porosity is one of the physical properties which affects the unit density, water
absorption, strength, heat and sound insulation of materials. In this study, porcelain tiles with different
thickness were sintered at same temperature, after that the cross-section of tiles were inspected with
Scanning Electron Microscope (SEM). The porosity percentage and pore size of tiles from SEM images
was calculated by using Scandium Image Analysis software. The aspect ratio of pores analyzed using Fiji
Image Analyses Program. The minimum porosity percentage was achieved at average thickness. These
porosity results were compared with total porosity percentage measured with He pycnometer. The
highest percent of spherical pore (aspect ratio equals to 1) was found at the highest thickness but the
smallest pore percentage found at the lowest thickness. It was found that the image analysis programs
were effective tools for material characterization