CZU combination dataset (exact cropped and normal cropped)

The CZU dataset, collected from the Czech University of Life Sciences, Prague (CZU) campus in 2022, consists of 772 images in the exact cropped dataset and 386 images in the normal cropped dataset. To create the combination dataset, both of these were merged. The dataset focuses on European beech (Fagus sylvatica L.), large-leaved linden (Tilia platyphyllos), Norway maple (Acer platanoides), and Scots pine (Pinus sylvestris L.). It includes photographs of tree stems taken from multiple angles, with a minimum of ten images per tree, highlighting the bark structure and patterns.