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17 Apr 2024
@telegram_828989343:t2bot.ioHeinz Vieth I found this:https://wiki.openstreetmap.org/wiki/User:Ff5722/Using_Sentinel-2_imagery 06:11:58
@telegram_828989343:t2bot.ioHeinz ViethBut I can not install QGIS😒06:12:17
@telegram_828989343:t2bot.ioHeinz Vieth https://wiki.openstreetmap.org/wiki/User:Ff5722/How_to_create_and_host_tilesets_from_GeoTIFF_images 06:23:55
@telegram_828989343:t2bot.ioHeinz ViethI do not have the knowledge to use this.😭06:24:30
@telegram_828989343:t2bot.ioHeinz ViethAlso Omkareshwar floating solar parks is visible (the undestroyed part).06:26:20
@telegram_828989343:t2bot.ioHeinz Vieth I looked at : https://apps.sentinel-hub.com/sentinel-playground/ 06:18:16
@telegram_828989343:t2bot.ioHeinz ViethThere the construction of Kutch solar park in GJ is visible!!06:19:03
@telegram_828989343:t2bot.ioHeinz ViethThe only way for me:a) screenshot images of sentinel playground b) using these images in JOSM.06:30:00
@telegram_1772067978:t2bot.ioSreeram K
In reply to Heinz Vieth
https://wiki.openstreetmap.org/wiki/User:Ff5722/How_to_create_and_host_tilesets_from_GeoTIFF_images
If you have the geotiffs.. I can have a go at it.. last time I did an India level tiling it took a day or more on my laptop.. but that was 1:50000 resolution stuff.. sentinel might end up getting done faster because I am guessing it is of lower resolution.
06:54:52
@telegram_707390035:t2bot.ioArun Ganesh
In reply to Heinz Vieth
I do not have the knowledge to use this.😭
An easier way:
1) Download GeoTIFF from https://apps.sentinel-hub.com/eo-browser/ (There's a download image button on the right>Analytical>High Res 16 bit GeoTIFF
2) Load GeoTIFF in JOSM using https://wiki.openstreetmap.org/wiki/JOSM/Plugins/ImportImagePlugin
06:57:35
@telegram_707390035:t2bot.ioArun Ganeshimage.jpeg
Download image.jpeg
06:59:31
@telegram_707390035:t2bot.ioArun Ganeshonly limitation is you can export a max of 2500x2500px image, so need more exports areas if you need more details07:01:18
@telegram_707390035:t2bot.ioArun Ganesh
In reply to Sreeram K
If you have the geotiffs.. I can have a go at it.. last time I did an India level tiling it took a day or more on my laptop.. but that was 1:50000 resolution stuff.. sentinel might end up getting done faster because I am guessing it is of lower resolution.
The file sizes on GeoTIFFs add up quickly. India level at any decent resolution may be TB πŸ™ˆ. In any case cloud cover varies and it's a bit of effort to pick the right imagery for every area. This might only be practical for a small area at which point its maybe easier to upload a GeoTIFF to Mapbox and generate a tms link for free
07:05:35
@telegram_6348460860:t2bot.ioSai Phanindraimage.jpeg
Download image.jpeg
07:22:22
@telegram_828989343:t2bot.ioHeinz Vieth
In reply to Arun Ganesh
An easier way:
1) Download GeoTIFF from https://apps.sentinel-hub.com/eo-browser/ (There's a download image button on the right>Analytical>High Res 16 bit GeoTIFF
2) Load GeoTIFF in JOSM using https://wiki.openstreetmap.org/wiki/JOSM/Plugins/ImportImagePlugin
Yes, that works. But it is difficult to position the image correctly and the resolution is too low to map generators.
07:25:16
@telegram_6348460860:t2bot.ioSai Phanindra Forwarded message from arnalie
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07:22:22
@telegram_707390035:t2bot.ioArun Ganesh
In reply to Heinz Vieth
Yes, that works. But it is difficult to position the image correctly and the resolution is too low to map generators.
Geotiffs are positioned automatically. The file includes position information
08:00:06
@telegram_1383441968:t2bot.ioNilabrata Sanyal
In reply to Arun Ganesh
An easier way:
1) Download GeoTIFF from https://apps.sentinel-hub.com/eo-browser/ (There's a download image button on the right>Analytical>High Res 16 bit GeoTIFF
2) Load GeoTIFF in JOSM using https://wiki.openstreetmap.org/wiki/JOSM/Plugins/ImportImagePlugin
It's quite fun playing around with the combination of bands to find what would be optimal for tracing water-covered areas of a river
08:01:04
@telegram_707390035:t2bot.ioArun GaneshCan you share a particular location. Curious to find out how bad the offset is08:28:49
@telegram_828989343:t2bot.ioHeinz Vieth
In reply to Arun Ganesh
Geotiffs are positioned automatically. The file includes position information
No: either ES and OSM has an offset or the the geotiff has an offset.
08:26:19
@telegram_828989343:t2bot.ioHeinz Vieth I tested here :https://www.openstreetmap.org/#map=14/22.1963/76.2094 08:42:35
@telegram_828989343:t2bot.ioHeinz Vieth And here : https://www.openstreetmap.org/#map=12/28.2651/73.3228 08:43:08
@telegram_828989343:t2bot.ioHeinz ViethThe download is a JPG of PNG image!!08:33:23
@telegram_828989343:t2bot.ioHeinz ViethOK09:14:17
@telegram_828989343:t2bot.ioHeinz ViethMaybe it is different with login??09:13:18
@telegram_707390035:t2bot.ioArun GaneshYes, without login you can only export jpg/png. You need to login to get the geotiff export09:14:04
@telegram_707390035:t2bot.ioArun Ganeshimage.jpeg
Download image.jpeg
09:13:27
@telegram_707390035:t2bot.ioArun Ganeshimage.jpeg
Download image.jpeg
09:15:10
@telegram_707390035:t2bot.ioArun GaneshThis is in JOSM with the GeoTiff at the max resolution of 10m/px. Not seeing any obvious offset09:13:27
@telegram_707390035:t2bot.ioArun GaneshExport settings09:15:10

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