Export values from Sentinel 2


#1

I have an image corrected with sen2cor from Sentinel 2 and i am trying to extract the pixel value. However when i do that i don t have any result files. Why is that?


#2

Please describe how you extracted the pixel value. What is your overall aim? Maybe there is another way to achieve it.


#3

Just by using the export->expart pixel values. Another solution that i was thinking is to resample the atmospherically corrected data to 60m (since all of them have already a resolution of 60m from sen2cor).
What do you think?
Any other ideas?


#4

Sorry for asking again - do you need the spectral values of a single pixel or a larger region? Necessarily as a text file?


#5

Imagine i have several images and i want the pixel values at specific lon,lat and from specific bands . I don t care if there are in a text file or not.


#6

you should test the time-series tool then.

Besides that, the EO Browser delivers a very easy method for that:


#7

But imagine that i have them at very different locations and time periods around the Mediterenean Sea so i cannot choose a specific polygon or location. I copy an image of my points


#8

This helps me understand.
Have you considered the pin manager to place pins at these locations and extract the values from there?

Have a look at marpets explanations here: How to extract value from sentinel 3 OLCI maps for a specific point.?


#9

This is the tool that i was originally using describbed How to extract value from sentinel 3 OLCI maps for a specific point.?.

But it doesn t give any output if you give sentinel 2 corrected images with sen2cor.


#10

I still don’t see the problem.


Any option in SNAP to measure amounts between two points
#11

But in order to have this output you have resampled and subsetted the original image?


#12

Currently, the extract pixel operator does not support the multi-size products, so you have to resample the S2, but in the next version of SNAP, this support will be added.


#13

2 posts were split to a new topic: Microwave penentration depth?