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How do you remove cloud from Landsat images?
As a first approach you can identify clouds, e.g. the Landsat TM/ETM+ Automatic Cloud Cover Assessment (ACCA). An implementation you find here: http://grass.osgeo.org/grass70/manuals/i.landsat.acca.html i.landsat.acca Hello, Imrana Aliyu! As was told, you can try FMASK (not the best option, but). YOu can download it here
What can you do with Landsat image archive?
The Landsat image archive is a great source for time series image analysis and change detection. Using Esri’s multidimensional raster analysis tools, you can explore time series image data to find out when, what, and where changes have happened. But before you can analyze change, you need to get your image data ready for processing.
How does the presence of clouds affect a Landsat image?
But before you can analyze change, you need to get your image data ready for processing. As you can imagine, the presence of clouds and shadow in a Landsat scene will affect the results of change analysis.
How can I identify the pixel values on Landsat 7?
You can use the Identify tool in ArcGIS Pro to click around on the Landsat 7 and Landsat 8 QA products to see which pixel values correspond to land and water vs. cloud and cloud shadow. Now you might be wondering: how do I apply a QA mask for a collection of images?
How to apply cloud mask to Sentinel 2 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 is cloud masking and removal used in remote sensing?
After the proposed cloud masking and cloud removal, cloud-free time series at high spatial resolution can be used to obtain a better monitoring of land cover dynamics and to generate more elaborated products. The method is tested in a dataset with 5-day revisit time series from SPOT-4 at high resolution and with Landsat-8 time series.
How to apply a cloud mask in snap?
I am using SNAP software. and choose Use vector as mask and the corresponding cloud band in the dropdown menu. Thanks for contributing an answer to Geographic Information Systems Stack Exchange!