The use of image processing technology using the spatial field method in calculating the volume and weight fraction of composite material components (resin / fibers). Journal of the College of Basic Education, [S. l.], v. 21, n. 89, p. 249–264, 2022. DOI: 10.35950/cbej.v21i89.6584. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/6584.. Acesso em: 1 jul. 2024.