Data for: An automatic recognition system of Brazilian flora species based on textural features of macroscopic images of wood

This dataset is related to the research article entitled "A system of automatic recognition of species of Brazilian flora based on textural characteristics of macroscopic images of wood", by Deivison Venicio Souza, Joielan Xipaia Santos, Helena Cristina Vieira, Tawani Lorena Naide, Silvana Nisgoski and Luiz Eduardo S Oliveira published in the journal Wood Science and Technology (https://link.springer.com/article/10.1007/s00226-020-01196-z). Wood samples were from the collection of the Wood Anatomy and Quality Laboratory (LANAQM) of Federal University of Paraná (UFPR), located in Curitiba, Paraná. The wood samples’ transversal surfaces were sanded with a 120 sandpaper and macroscopic images of 46 species were taken with a Zeiss Discovery V 12 stereomicroscope, with size of 2080 × 1540 pixels and 10× magnification. The captured images have a resolution of 150 dpi. A total of 1,901 macroscopic images were obtained. Of the 46 species used in this study, 7 are on Brazil’s official list of endangered species. More specifically, the species Araucaria angustifolia and Ocotea porosa are classified in the category “Endangered”, Cedrela fissilis, Bertholletia excelsa, Mezilaurus itauba and Swietenia macrophylla are part of the “Vulnerable” group, and Euxylophora paraensis is considered “Critically Endangered”.

本数据集关联的研究论文题为《基于木材宏观图像纹理特征的巴西植物物种自动识别系统》，作者为Deivison Venicio Souza、Joielan Xipaia Santos、Helena Cristina Vieira、Tawani Lorena Naide、Silvana Nisgoski与Luiz Eduardo S Oliveira，发表于期刊《木材科学与技术（Wood Science and Technology）》，链接为https://link.springer.com/article/10.1007/s00226-020-01196-z。

木材样本取自位于巴拉那州库里提巴的巴拉那联邦大学（Federal University of Paraná, UFPR）下属的木材解剖与质量实验室（Wood Anatomy and Quality Laboratory, LANAQM）馆藏。研究人员使用120目砂纸对木材样本的横切面进行打磨，采用蔡司Discovery V12体视显微镜拍摄了46个物种的宏观图像，单张图像尺寸为2080×1540像素，放大倍数为10倍，拍摄所得图像的分辨率为150 dpi。本次研究共获取1901张宏观图像。

本研究涉及的46个物种中，有7种被列入巴西官方濒危物种名录。其中，狭叶南洋杉（Araucaria angustifolia）和香皮檫（Ocotea porosa）被列为“濒危（Endangered）”等级；墨西哥香椿（Cedrela fissilis）、巴西坚果树（Bertholletia excelsa）、伊托巴木（Mezilaurus itauba）以及大果桃花心木（Swietenia macrophylla）属于“易危（Vulnerable）”类群；而巴西黄胆木（Euxylophora paraensis）被评定为“极危（Critically Endangered）”。