“…So far, several research works have applied CNN for PI visual classification using wound images as inputs (Abubakar et al, 2020; Ay et al, 2022; García‐Zapirain et al, 2018; Liu, Christian, et al, 2022; Wang, Jiang, et al, 2021; Zahia et al, 2018). Some of them tried to present images into binary classes such as normal versus pressure injured (Wang, Jiang, et al, 2021) or erythema versus non‐erythema (Liu, Christian, et al, 2022). Others divided PI images into multi‐classes mainly as granulation/slough/necrosis (García‐Zapirain et al, 2018; Zahia et al, 2018), as healthy/burn/PI (Abubakar et al, 2020), or depending on the severity of damage as extensive/moderate/limited necrosis (Liu, Christian, et al, 2022).…”