@article{IJAMCS_2018_28_2_a13, author = {Ahmed, F. and Kabir, M. H.}, title = {Facial expression recognition under difficult conditions: {A} comprehensive study on edge directional texture patterns}, journal = {International Journal of Applied Mathematics and Computer Science}, pages = {399--409}, publisher = {mathdoc}, volume = {28}, number = {2}, year = {2018}, language = {en}, url = {http://geodesic.mathdoc.fr/item/IJAMCS_2018_28_2_a13/} }