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Is there any possibility exporting 16 bit single-bands to 8 bit like in qgis (gdal_translate)? Additionally in SAGA there is no option to save raster with rendering, right?

Thelema
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I believe this question is related to yours previous: Exporting 16 bit single-band to 8 bit in SAGA/QGIS so I'll answer using dataset you probably are working on (if not skip to step 3):

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  1. Bear in mind that no data value is wrong - black area is no data and values there are 0's

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  1. Set proper no data

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  1. After this preparation use Convert data storage type module (Grid --> Values --> Convert data storage type)

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Resulting raster will loose this nice grayscale render due to huge narrowing the dispersion of the values after reducing from 16 to 8 bits.

Answering your second question: as far as I'm concerned in SAGA there is no option of exporting raster rendering.

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jzol
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  • what a pitty. there is no other module or option to write commands like in qgis? if i convert 16 bit to 8 bit in qgis (gdal_translate) the result isnt a huge narrowing. i dont understand this discrepancy. – Thelema Sep 18 '14 at 22:12