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Clip 'n ship tool downsamples the source imagery #112

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sbsimo opened this issue Oct 26, 2017 · 6 comments · Fixed by #115
Open

Clip 'n ship tool downsamples the source imagery #112

sbsimo opened this issue Oct 26, 2017 · 6 comments · Fixed by #115
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@sbsimo
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sbsimo commented Oct 26, 2017

The image obtained after clipping the ortho_images has a lower spatial resolution than the original data source. Can the downsampling ratio be set to any value? In such case which setting should be modified?

@AndreaAjmar
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The bug must be solved ASAP as we have an official presentation tomorrow morning 9 am (Haiti time, i.e. UTC/GMT -4) and this is really crucial for the presentation!

@gmtoglia
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Please check also the procedure on the DEM files.

@sbsimo
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sbsimo commented Oct 27, 2017

The #115 was checked and merged; it is operational on the dev server.

The clipped files (both ortho_images and DSM) now have indeed the original resolution.
They are also correctly geo-referenced in the source reference system.

There's still an issue with the number of bands, one more than the original source; i.e. the ortho_images clipped file has 4 bands rather than the original 3; lidar has 2 bands rather than the original 1 (see screenshot below).
Not sure whether to keep this issue open or close it and opening a more specific one on the bands (@gmtoglia and @AndreaAjmar please suggest).

image

@gmtoglia
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What's the size increase because of this 4th/2nd band (in percentage)?

@sbsimo
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sbsimo commented Oct 31, 2017

  • 100% increase for lidar (the 2nd band is currently the same size as the 1st)
  • 33% increase for the orthoimages

@gmtoglia
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Ok, in this case it's better to keep it open :)

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5 participants