Forest dataset composed by visible and thermal images with trunk annotations. The images were acquired in three different portuguese forests and were captured by four different cameras: GoPro Hero6 Allied Mako G-125 FLIR M232 ZED Stereo The images and annotations are stored in two zip files: forest_dataset_original.zip - original dataset forest_dataset_augmented - augmented dataset Also, the subsets that were used to train, validate and test some deep learning models are available in three .TXT files (train.txt, val.txt and test.txt), where each file line corresponds to an image name.