Co-registration with SNAP
From AWF-Wiki
(Difference between revisions)
| Line 1: | Line 1: | ||
* Start SNAP Desktop | * Start SNAP Desktop | ||
| − | * {{mitem|text=File --> Open Product...}} Browse and mark UAS ortho | + | * {{mitem|text=File --> Open Product...}} Browse and mark UAS ortho mosaics. \geodata\uas\clip_ebee_ortho_align.tif is the reference image and \geodata\uas\clip_mavic_ortho_align.tif is the image to be registered to the reference image. {{button|text=Open}} or drag and drop marked files from Windows File Explorer into the SNAP '''Product Explorer''' tab. |
| − | * Mark the | + | * Mark the image to be registered ''clip_mavic_ortho_align.tif'' in ToC. {{mitem|text=Raster --> Subset --> Band Subset}}. Check only '''band_1'''. |
[[File:snap_specify_band_subset_band_1.png|300px]] | [[File:snap_specify_band_subset_band_1.png|300px]] | ||
| − | * Repeat this step for band_2 and band_3 creating separated single bands of the | + | * Repeat this step for band_2 and band_3 creating separated single bands of the image to be registered . |
* {{mitem|text=Raster --> Geometric operations --> GeFolki Co-registration}}. | * {{mitem|text=Raster --> Geometric operations --> GeFolki Co-registration}}. | ||
* Define I/O Parameters and Processing Parameters: | * Define I/O Parameters and Processing Parameters: | ||
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* Check '''Save as''' and select GeoTIFF from drop downlist | * Check '''Save as''' and select GeoTIFF from drop downlist | ||
[[File:snap_datatype_io.png|400px]] [[File:snap_datatype_params.png|400px]] | [[File:snap_datatype_io.png|400px]] [[File:snap_datatype_params.png|400px]] | ||
| − | * Load ''clip_ebee_ortho_align.tif'', ''clip_mavic_ortho_align.tif'' and ''collocate_Cnv.tif'' into QGIS and check the geometric quality of the | + | * Load ''clip_ebee_ortho_align.tif'', ''clip_mavic_ortho_align.tif'' and ''collocate_Cnv.tif'' into QGIS and check the geometric quality of the co-registration. |
[[Category:SNAP Tutorial]] | [[Category:SNAP Tutorial]] | ||
[[Category:Tutorials]] | [[Category:Tutorials]] | ||
Revision as of 10:23, 5 November 2020
- Start SNAP Desktop
- File --> Open Product... Browse and mark UAS ortho mosaics. \geodata\uas\clip_ebee_ortho_align.tif is the reference image and \geodata\uas\clip_mavic_ortho_align.tif is the image to be registered to the reference image. Open or drag and drop marked files from Windows File Explorer into the SNAP Product Explorer tab.
- Mark the image to be registered clip_mavic_ortho_align.tif in ToC. Raster --> Subset --> Band Subset. Check only band_1.
- Repeat this step for band_2 and band_3 creating separated single bands of the image to be registered .
- Raster --> Geometric operations --> GeFolki Co-registration.
- Define I/O Parameters and Processing Parameters:
- Click Run.
- Repeat this step for band_2 (subset_1) and band_3 (subset_1). Adjust processing parameters for each band, accordingly.
- Create a stack of all coregistered single bands. Raster --> Geometric operations --> Collocation
- Raster --> Data Conversion --> Convert Datatype
- Check Save as and select GeoTIFF from drop downlist
- Load clip_ebee_ortho_align.tif, clip_mavic_ortho_align.tif and collocate_Cnv.tif into QGIS and check the geometric quality of the co-registration.
