Live data from Hacker News

Show HN: A simple CLI tool to generate satellite images of a location

github.com

61–69 of 69 posts

Re: Show HN: A simple CLI tool to generate satellite images of a location

#61
Here are some possibilities to add:

- Allow farbfeld output (to stdout)

- Allow specifying your own assignment of bands

- Allow to skip the colour adjustment if you want to do that separately

- Ensure it works correctly with a non-Unicode locale

Re: Show HN: A simple CLI tool to generate satellite images of a location

#62

Here are some possibilities to add: - Allow farbfeld output (to stdout) - Allow specifying your own assignment of bands - Allow to skip the colour adjustment if you want to do that separately - Ensure it works correctly with a non-Unicode locale

Right, thanks a lot for your suggestions.

Points 2, 3 are in the to-do list. Will definitely add 1, 4.

Re: Show HN: A simple CLI tool to generate satellite images of a location

#63
post #13

Earlier quoted context omitted.

Hi, not yet. It searches for all Landsat 8 images on AWS with lowest cloud cover. But even at it's full potential, Landsat 8 gives a temporal resolution of 14 days for a location, iirc.

For a little more effort you could "interleave" the Sentinel 2 images as well, which are of a similar resolution and also have a simple access API.

Oh yes, there are plans to integrate Sentinel images as well, but the data fetch layer has to be worked on to handle auth/AWS config to fetch data from buckets.

So released with Landsat 8 first, and I think sentinel 2 has better resolution, up to 10m, if I am not wrong. So it'd be a lot better if Sentinel 2 integration were in-place.

Re: Show HN: A simple CLI tool to generate satellite images of a location

#66
post #63

Earlier quoted context omitted.

For a little more effort you could "interleave" the Sentinel 2 images as well, which are of a similar resolution and also have a simple access API.

Oh yes, there are plans to integrate Sentinel images as well, but the data fetch layer has to be worked on to handle auth/AWS config to fetch data from buckets. So released with Landsat 8 first, and I think sentinel 2 has better resolution, up to 10m, if I am not wrong. So it'd be a lot better if Sentinel 2 integration were in-place.

There's also this, if you are interested in downloading timeseries as a whole: https://github.com/cmla/tsd

It supports sentinel 1/2/5p, landsat 8 and a few other satellites if you have the required API access identifiers. The idea is to fetch data not from buckets but from the actual sources, so the underlying philosophy is a bit different.

Re: Show HN: A simple CLI tool to generate satellite images of a location

#67
post #63

Earlier quoted context omitted.

Oh yes, there are plans to integrate Sentinel images as well, but the data fetch layer has to be worked on to handle auth/AWS config to fetch data from buckets. So released with Landsat 8 first, and I think sentinel 2 has better resolution, up to 10m, if I am not wrong. So it'd be a lot better if Sentinel 2 integration were in-place.

There's also this, if you are interested in downloading timeseries as a whole: https://github.com/cmla/tsd It supports sentinel 1/2/5p, landsat 8 and a few other satellites if you have the required API access identifiers. The idea is to fetch data not from buckets but from the actual sources, so the underlying philosophy is a bit different.

This is a gold mine, thanks for sharing!

Re: Show HN: A simple CLI tool to generate satellite images of a location

#68
post #31

Earlier quoted context omitted.

> It downloads imagery. At first I thought this was a project to simulate satellite imagery from OSM data or something. Will update the README, thanks for pointing it out. > Landsat is what 30 meters-per-pixel? That's not high-resolution. With the panchromatic band, we can get 15m resolution. But you're right with the fact that one can get images with better resolution on any commercial platforms. But even OpenMapTil…

NAIP has 1 m/pixel imagery, only over US.

Thanks, I'll look into it, and try integrating the data source with the tool.

Re: Show HN: A simple CLI tool to generate satellite images of a location

#69
post #29

Earlier quoted context omitted.

Seems nice but sends you to dependency hell when you try to install on Ubuntu. On 18.04, it can't find the correct openvc On 19.04, same things On 20.04, the repo doesn't include config for 20.04 Would love to try it, but ...

Very weird, can you raise an issue with some logs, I'd love to take a look at them and see what went wrong. Thanks for looking into the tool.

Wont have time to do this, nor do I have a github account anymore since that once welcoming place has been assimilated by the borg.

However, here's a hint: try to install a minimal ubuntu server on a VM and install/run your package.

You'll quickly discover the real transitive dependency set of your software.

Post reply on HN