Show HN: A simple CLI tool to generate satellite images of a location • Hacker News Board

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

#31

Post by plant99 » Sat, Jul 25, 2020, 3:39 PM UTC

kingofpandora wrote: post #19

A couple of comments... > TL;DR: Generate JPEG earth imagery from a location's name/coordinates It downloads imagery. At first I thought this was a project to simulate satellite imagery from OSM data or something. > This tool is for a sentient being who wants to view high-res satellite imagery of earth Landsat is what 30 meters-per-pixel? That's not high-resolution.

> 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 OpenMapTiles renders at 15m, I feel. Still have to look into some docs though, I'm curious.

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

#32

Post by ykevinator » Sat, Jul 25, 2020, 4:01 PM UTC

This is great, thanks for building this

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

#33

Post by hoyd » Sat, Jul 25, 2020, 4:11 PM UTC

doersino wrote: post #17

This is neat! I’ve built something similar, although my tool can pull its data from any service that supports tile indexing via the Web Mercator Transform (e.g. Google Maps, OSM, basically every online mapping service): https://github.com/doersino/aerialbot Its original purpose is the creation of Twitter bots like the ones liked below, but it works well for grabbing detailed satellite maps of arbitrary areas. https:/…

Love this, and the bots. I had one running myself for a while, but I missed the part that grabbed the satellite imagery, do I did that in bulk ahead and had a folder of them.

https://twitter.com/FiveEarthColors

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

#34

Post by kanobo » Sat, Jul 25, 2020, 4:26 PM UTC

https://imgur.com/a/dKc2OlG - The example images for those who don't have want to download a 40mb image or don't use google drive

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

#35

Post by kylebarron » Sat, Jul 25, 2020, 4:34 PM UTC

plant99 wrote: post #13

bobwernstein wrote: post #6

is it live? Like can a get a pic of a place made at day light in the last 24 hours?

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.

Landsat 8 has a 16 day repeat cycle

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

#36

Post by plant99 » Sat, Jul 25, 2020, 4:37 PM UTC

kylebarron wrote: post #35

plant99 wrote: 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.

Landsat 8 has a 16 day repeat cycle

Yess, thanks for the correction.

"The satellite has a 16-day repeat cycle with an equatorial crossing time: 10:00 a.m. +/- 15 minutes." from USGS website.

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

#37

Post by klohto » Sat, Jul 25, 2020, 4:44 PM UTC

ur-whale wrote: post #23

plant99 wrote: post #2

Felicette is a dead-simple CLI tool which searches, downloads, generates, and visualizes satellite imagery in the form of RGB jpegs, taking inputs in the form of location's name or coordinates. It also has options to visualize CIR vegetation data.

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 ...

Update your pip and you should be fine. Or modify the package requirements. It worked even with older versions for me.

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

#38

Post by sn41 » Sat, Jul 25, 2020, 4:47 PM UTC

ComodoHacker wrote: post #12

Where the data are coming from? Can't find a word about it in README.

It uses Landsat, as far as I can gather from the code.

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

#39

Post by enriquto » Sat, Jul 25, 2020, 4:55 PM UTC

plant99 wrote: post #13

bobwernstein wrote: post #6

is it live? Like can a get a pic of a place made at day light in the last 24 hours?

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.

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

#40

Post by ducktective » Sat, Jul 25, 2020, 5:00 PM UTC

plant99 wrote: post #30

prennert wrote: post #25

Looks like a great tool, but its dependencies are sufficiently complex to warrant a Dockerfile. This way it would be very clear what the dependencies are independent of how the host system is configured.

Thanks for the feedback, I agree with you on this. I'll add this to the to-do list.

[pipx](https://pipxproject.github.io/pipx/) is a nice way to download python CLI apps in a separate contained virtual env. But I couldn't install your app with it:

https://pastebin.com/syUPRDCp