Orthophoto of the Czech Republic - Ostrava 4-2

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位色彩深度的捷克共和国近乎无缝数字正射影像（orthophoto）。该栅格图像（Ortofota ČR）的像素在地形中平面内，分别对应0.200平方米的地面范围（东带）与0.125平方米的地面范围（西带）。捷克共和国正射影像的位置精度持续提升，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至0.21米之间。2021年度捷克共和国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，每个分发单元对应2.5×2千米的地面范围，遵循SM 5分类标准。