A command-line tool for rendering to TIFF any image from Google Static Maps
tiffany
downloads, georeferences, and labels any satellite image from the
Google Static Maps (API). You can use this to prepare labeled data for
downstream tasks such as in computer vision (object detection, semantic
segmentation, etc.)
- Download Google Static Maps Images straight from the command-line
- Automatically georeference downloaded GSM images (SRID:
EPSG:4326
) - Create training labels for the images by clipping an ESRI Shapefile
With a single command,
$ tiffany 14.546943935986324 121.01974525389744
you can generate the following outputs for an image centered at (14.54694524, 121.0197543253)
.
Note that the --with-labels
flag requires an input ESRI Shapefile preferably
from OpenStreetMap (OSM).
Original image | Georeferenced | With labels |
---|---|---|
--without-reference |
default | --with-labels |
You can obtain the latest binaries from our Releases tab. Make sure to download the one compatible to your system. As of now, we only compile on amd64 architectures:
Linux (amd64) | Darwin (amd64) | Windows (amd64) | |
---|---|---|---|
Latest | tiffany-latest-linux-amd64 | tiffany-latest-darwin-amd64 | tiffany-latest-windows-amd64 |
Nightly | tiffany-nightly-linux-amd64 | tiffany-nightly-darwin-amd64 | tiffany-nightly-windows-amd64 |
Alternatively, you can compile tiffany
from source. You need
go1.11 and
GDAL>=2.0.0 to create successful builds. First, clone
the repository and enter it:
$ git clone git@github.com:thinkingmachines/tiffany.git
$ cd tiffany
Then get the dependencies and build the project:
$ go get
$ go build .
Optionally, you can also install tiffany
inside your system
$ go install
Tiffany requires a Google Static Maps API
Key. For large amounts of requests, Tiffany also requires a Secret Key to sign the url.
Generate store them inside an .tiffany.env
file in your project directory:
# .tiffany.env
API_KEY="<your API key here>"
SECRET_KEY="<your Secret key here"
To get images, simply call tiffany
, and pass it your latitude and longitude:
$ tiffany 14.546943935986324 121.01974525389744
You can supply the .tiffany.env
file by passing the filepath to the --env
parameter. By
default, it's searched from your project root:
$ tiffany 14.546943935986324 121.01974525389744 --env=path/to/.tiffany.env
The command above will generate a directory, tiffany.out
where a *.png
and
its corresponding *.tiff
file is located.
In case you don't want georeferenced images and prefer plain-old PNG images,
then simply pass the --without-reference
flag:
$ tiffany 14.546943935986324 121.01974525389744 --without-reference
Lastly, you can clip labels for your geo-referenced image from an ESRI Shapefile. This is useful for downstream tasks such as in machine learning:
$ tiffany 14.546943935986324 121.01974525389744 --with-labels=path/to/gis_osm_buildings_free_1.shp
Rather than invoking a for-loop, it is also possible to get multiple images by
passing a CSV file containing the latitude and longitude of the
points-of-interest in the batch
command. This method is more efficient and
relatively faster:
# coordinates.csv
latitude,longitude
14.546943935986324,121.01974525389744
14.438494843958949,121.84324983413455
14.879847197948529,121.81851791571952
And then,
$ tiffany batch coordinates.csv
Simply fork this repository and make a Pull Request! We're open to any kind of contribution, but we'd definitely appreciate:
- Implementation of new features
- Writing documentation
- Testing
Also, we have a CONTRIBUTING.md and a Code of Conduct, so please check that one out!
- OSM data copyright OpenStreetMap contributors and licensed under Open Database License
- Use of Google Static Maps is governed by its Terms of Use and Additional Terms of Service. You still need to acquire an API key in order to use this service.
- The tiffany logo was inspired by the Twitch logo, and was based from the font type created by MaxiGamer. The color is based from Gopher Blue (
#00ADD8
) based from the Golang Brand book
MIT License (c) 2019, Thinking Machines Data Science