Microscopy Images oMicroplastics in Photovoltaic-Covered Irrigation Pond Water

This dataset contains 71 optical microscopy images of suspected microplastic particles collected from water stored in a photovoltaic-covered irrigation pond in Salamanca, Spain, during sampling campaigns conducted between 2024 and 2026. The images include scale references of 100, 200 or 400 µm and show particles with different shapes, sizes and orientations. They were used for manual particle-length measurement and for developing and validating an AI-assisted image-analysis workflow based on automatic scale recognition, SAM2 segmentation, morphological skeletonization and length estimation. Some images contain portions of the grid printed on the filtration membrane, which may interfere with automatic particle segmentation.本数据集包含71帧光学显微图像，拍摄对象为从西班牙萨拉曼卡一处覆盖光伏板的灌溉池塘蓄积水体中采集的疑似微塑料颗粒，采样工作于2024年至2026年间开展。图像均配有100、200或400微米的比例尺参照，展示了不同形状、尺寸与取向的颗粒。该数据集被用于人工颗粒长度测量，以及开发、验证一套基于自动标尺识别、SAM2分割、形态学骨架化与长度估计的人工智能辅助图像分析流程。部分图像包含滤膜上印刷的网格区域，可能会对自动颗粒分割造成干扰。