I have created a RGB composite in SAGA GIS using the RGB composite tool. A one band raster is created, which can be visualised in SAGA using the option RGB coded values. When I try to import this raster in QGIS, the image is loaded in grayscale, because the RGB values are stored as a single number, for example "6512354". In SAGA this numbers are recognized, but not in QGIS. Is there any way I can visualise the RGB coded values in QGIS?
When you have RGB(A) composite in SAGA, please remember you are dealing with an image, not a single-band raster.
There is no mention in your post but I think you have exported the file by either Export GeoTIFF or Export Raster command. These commands export a single-band raster, and your composite (multi-band) data will be deteriorated in the process.
Export your composite as an image by Export Image (bmp, jpg, pcx, png, tif) tool.
- From Tool panel, go to
Import / Export | Images | Export Image (bmp, jpg, pcx, png, tif)
>> Grid: your Composite
Image File: your output filename
Coloring: rgb coded values
- Execute the tool. It will output
RGB Tiff image,
Now you should be able to open the Tiff file in QGIS.