Figure 3. Images from Sobel directional filters. A) N-S direction; B) E-W direction; C) NE-SW direction and D) NW-SE direction

From

Lineament and Lithological Mapping of Meta-Sediments and Granitoids of Goz-Beïda (Eastern Chad) Based on Semi-Automatic Processing of Landsat 8 Oli/Tirs Images

Félix Nenadji Djerossem, Ngarbagne Rirabé, Gustave Ronang Baïssemia, Moussa Ngarena Klamadji, Malik Hisseine Malik

Journal of Geosciences and Geomatics. 2024, 12(4), 80-86 doi:10.12691/jgg-12-4-1