Orthophoto of the Czech Republic - Kraslice 3-9

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.本数据集为采用8位色彩模式的捷克数字化近乎无缝正射影像（orthophoto）。捷克正射影像（Ortofota ČR）的栅格图像像素对应地形中间高程面上的实地范围，其中东波段的地面采样分辨率为0.200米，西带则为0.125米。该正射影像的位置精度持续优化，以平均位置误差作为精度表征指标：2019至2020年间，该误差值介于0.20米至0.21米之间。2021年捷克正射影像的精度评估工作暂未完成。捷克正射影像（Orthofoto ČR）以JPG图形栅格格式进行分发，其分发单元符合SM 5分幅标准，对应实地范围为2.5千米×2千米。