wildtreetech / sentinel2-bot

🛰📷🌏 Tweeting pictures taken by the Sentinel 2 satellite.
https://twitter.com/sentinel2bot
MIT License
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Different top end clip for high cloud images #33

Open betatim opened 5 years ago

betatim commented 5 years ago

For images with a lot of clouds the ground is very dark. For example: t47pnn_20190127t034021_rgb

You could improve this by using a larger top end clip for scenes that have a lot of cloud.

As an example: the same image as above but by hand clipping a lot more at the top:

t47pnn_20190127t034021_rgb_small

The clouds get clipped and you lose details there but you can see the ground.

To do: experiment with what a good clip value is. MGRS code for the example image: T47PNN_20190127T034021_rgb_small.jpg

cc @ozjtigger1

Jeffery-Thompson commented 5 years ago

Nice! that's a bit improvement

Jeffery A. Thompson RIS HPC Geospatial Analyst Research Informatics Solutions Minnesota Supercomputing Institute jathomps@umn.edu

On Feb 11, 2019, at 5:36 PM, Tim Head notifications@github.com wrote:

For images with a lot of clouds the ground is very dark. For example: https://user-images.githubusercontent.com/1448859/52601029-da406400-2e5d-11e9-869a-3da46c06e763.jpg You could improve this by using a larger top end clip for scenes that have a lot of cloud.

As an example: the same image as above but by hand clipping a lot more at the top:

https://user-images.githubusercontent.com/1448859/52601133-11167a00-2e5e-11e9-944d-e87ae6693da5.jpg The clouds get clipped and you lose details there but you can see the ground.

To do: experiment with what a good clip value is. MGRS code for the example image: T47PNN_20190127T034021_rgb_small.jpg

cc @ozjtigger1 https://github.com/ozjtigger1 — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/wildtreetech/sentinel2-bot/issues/33, or mute the thread https://github.com/notifications/unsubscribe-auth/ATupluN02DpVPZcTKnyebs83oCZyANzgks5vMf6JgaJpZM4a1SGD.