Lentil Classification Dataset: Polished and Unpolished

Realizing the increasing demand for quality data in food quality testing, agricultural research, and retail research, the dataset was created to record fine visual variations between polished and unpolished lentils. It is centered on five major varieties of lentils commonly eaten in India: Chana, Masoor, Moong, Toor, and Urad. The dataset includes a total of 1097 high-resolution images (3005 × 3005 pixels) of these lentils, which were captured specifically to differentiate between their polished and unpolished states. Each picture is systematically titled: for unpolished specimens as lentilname_UP_001 and for polished ones as lentilname_P_001, where "lentilname" indicates the lentil variety (Chana, Masoor, Moong, Toor, Urad), "UP" indicates the polish status ("UP" for Unpolished and "P" for Polished), and the number indicates the sequence of the pictures. All images were taken from nearby retail shops under standardized light conditions and identical background settings to ensure consistency and guarantee high quality of inspection.鉴于食品质量检测、农业研究与零售研究领域对高质量数据的需求日益增长，本数据集旨在记录抛光与未抛光扁豆之间的细微视觉差异。数据集聚焦于印度常见食用的五大扁豆品种：恰娜（Chana）、马苏尔（Masoor）、穆恩（Moong）、图尔（Toor）、乌拉德（Urad）。本数据集共计1097张分辨率为3005×3005像素的高分辨率图像，均针对这些扁豆的抛光与未抛光状态拍摄，以实现二者的有效区分。所有图像采用系统化命名规则：未抛光样本的文件名为"lentilname_UP_001"，抛光样本则为"lentilname_P_001"。其中，"lentilname"指代扁豆品种，具体为恰娜、马苏尔、穆恩、图尔、乌拉德五大品类，"UP"表示抛光状态（UP代表未抛光，P代表抛光），末尾数字为图像的序列编号。所有图像均在标准化光照条件与统一背景设置下，于当地零售商铺内拍摄，以确保数据一致性与检测质量。