Orthophoto of the Czech Republic - Tanvald 7-3

Digital seemingly seamless orthophoto of the Czech Republic in a 8-bit color scale. The pixel of the raster image Ortofota ČR displays 0.200 m (band „East), resp. 0.125 m ("West" zone) of the area in the middle plane of the terrain. The orthophoto of the Czech Republic is constantly improving its positional accuracy characterized by a mean positional error, this error ranged from 0.20 to 0.21 m in the years 2019 - 2020. The evaluation of the accuracy of the orthophoto of the Czech Republic in 2021 has not yet been completed. Orthofoto ČR is distributed in graphic raster formats JPG in dispensing units with a size showing 2.5 x 2 km of terrain in the SM 5 clade.本数据集为捷克共和国数字化近乎无缝的8位色彩深度正射影像（Orthophoto）。其栅格图像（raster image）捷克正射影像（Ortofota ČR）的地面采样距离分别为：东部波段0.200米，西部区域0.125米，对应地形中平面的地面范围。该捷克正射影像的位置精度以平均位置误差为核心衡量指标，且精度持续优化；2019至2020年间，其平均位置误差区间为0.20至0.21米。2021年度该捷克正射影像的精度评估工作尚未完成。捷克正射影像（Orthofoto ČR）以JPG图形栅格格式分发，所有分发单元均采用SM 5分幅等级（SM 5 clade），每个单元对应2.5×2千米的地面范围。