Create stack
From AWF-Wiki
(Difference between revisions)
(→Create a new multiband raster file (single bands to multiband)) |
(→Build a virtual stack) |
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* Set Resampling algorithm to {{typed|text=Bilinear}} | * Set Resampling algorithm to {{typed|text=Bilinear}} | ||
[[File:Qgis_virtual_raster.png|400px]] | [[File:Qgis_virtual_raster.png|400px]] | ||
− | * Click {{button|text=Run | + | * Click {{button|text=Run}} |
= Create a new multiband raster file (single bands to multiband) = | = Create a new multiband raster file (single bands to multiband) = |
Revision as of 09:54, 9 November 2020
Build a virtual stack
A VRT (Virtual Dataset) is a list of links to input raster datasets. This has the advantage that no additional physical copy of the original files is necessary which saves storage capacity.
- Click Raster --> Miscellaneous --> Build Virtual Raster.
- Input files: Click Select and click the checkbox of several single raster band files in the Multiple Selection window. Take care on the order of the files selection: etermines the rank of bands in the resulting multiband file. The rank of files can be changed by drag and drop in the Multiple Selection window.
- Output Converted file: Click ... Save to file ..-and choose a new file name.
- Check the checkbox on Place each input file into a separate band (see screenshot below).
- Set output Resolution to highest.
- Set Resampling algorithm to Bilinear
- Click Run
Create a new multiband raster file (single bands to multiband)
A multiband file stores several single raster layers in one file.
- Click Raster --> Miscellaneous --> Merge.
- Input files: Click Select and click the checkbox of several single raster band files in the Multiple Selection window. Take care on the order of the files selection: it determines the rank of bands in the resulting multiband file. The rank of files can be changed by drag and drop in the Multiple Selection window.
- Output Converted file: Click ... Save to file ..-and choose a new file name.
- Check the checkbox on Place each input file into a separate band (see screenshot below).
- Click Run in background