I want to apply one of the cloud masks in the sentinel 2 file to the sentinel image.

The sentinel 2 image I have downloaded features files concerning cirrus and opaque clouds at 10m, 20m and 60m.

how do I apply one of these masks to the RGB image and cancel out the clouds for future processing?

Is there a specific tool? or equation?

I am using SNAP software.

  • how can I do the same thing with qgis?
    – Rim sleimi
    Jul 22, 2019 at 11:46

1 Answer 1


You can use Raster > Mask > Land/Sea Mask

and choose Use vector as mask and the corresponding cloud band in the dropdown menu.

masking images in SNAP

  • @sineadbrack Consider to mark this as the correct answer if it helped you
    – pLumo
    Jun 2, 2017 at 9:17

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