Work with multiple images

[ouyuanzheng]

I want to use S2P to process multiple images covering the same area, I would like to ask how to set the "roi" parameter in the JSON file. "roi" in the example : "roi" : { "x" : 150, "y" : 150, "w" : 700, "h" : 700 }, how do I get the x and y parameters? What system coordinates are x and y? Can you give me some advice? Thank you so much!

[carlodef]

Hi @ouyuanzheng, the x and y parameters are pixel coordinates of the top-left corner of your Area of Interest in the first image raster.

[carlodef]

For defining the AOI with geographic coordinates instead of pixel coordinates, you can use roi_geojson instead of roi.

roi_geojson expects a geojson polygon dict.

[ouyuanzheng]

I get it, thank you very much for your reply！

[ouyuanzheng]

Hello, is there a limit to the size of W and H values in roi? I use W=2000, H=2000, and I get the following error: s2p tests/data/input_trillet-WV3/config_geo.json WARNING: ignoring unknown parameter skip_existing. WARNING: ignoring unknown parameter utm_bbx. WARNING: ignoring unknown parameter triangulation_mode. tile size: 318 286 total number of tiles: 147 (7 x 7) x 3 pairs

discarding masked tiles... done 47 / 49 tiles Traceback (most recent call last): File "/home/oyz/.local/bin/s2p", line 33, in sys.exit(load_entry_point('s2p', 'console_scripts', 's2p')()) File "/mnt/d/Envirnment-S2P/s2p/s2p/cli.py", line 25, in main s2p.main(user_cfg, start_from=args.start_from) File "/mnt/d/Envirnment-S2P/s2p/s2p/init.py", line 547, in main tiles = initialization.tiles_full_info(tw, th, tiles_txt, create_masks=True) File "/mnt/d/Envirnment-S2P/s2p/s2p/initialization.py", line 390, in tiles_full_info timeout=cfg['timeout']) File "/mnt/d/Envirnment-S2P/s2p/s2p/parallel.py", line 102, in launch_calls outputs.append(r.get(timeout)) File "/usr/lib/python3.6/multiprocessing/pool.py", line 640, in get raise TimeoutError multiprocessing.context.TimeoutError