@article{article6bfdd3e0,
title   = {Proportional convolution filters: an alternative technique for non-distorted image enhancement},
author = {Branco, Fábio Cardinale and Almeida, Teodoro Isnard Ribeiro de and Souza Filho, Carlos Roberto de},
year = {2012},
doi = {10.22564/rbgf.v30i1.66},
journal   = {Revista Brasileira de Geofísica}
}