Richard,
I should have made my initial query clearer. I am trying to output a black and white geotiff. Have split the original (landsat) image into RGB images. When I apply the expression in the capture below, and hit run, nothing is saved to the results directory. I’m assuming that my expression or something else in the raster calculator is wrong? The final product that I’m after is a xyz grid where z is the black-white amplitude…which I think should be relatively easy (?) once I have the black-white image. Chas Sheen 0448017282 From: Richard McDonnell [mailto:richard.mcdonn...@opw.ie] Sent: Wednesday, January 17, 2018 7:13 PM To: Chas Sheen <chassheen...@gmail.com>; qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] Generating black white from RGB landsat using Raster Map calculator? Chas, Two options for splitting RGB into separate images in QGIS. 1. Semi-Automatic Classification Plugin, Preprocessing, Split Raster Bands 2. Grass r-rgb (Processing Toolbox) Any one of these tools will split the Raster for you easy enough Regards, Richard On 17/01/2018 00:48, Chas Sheen wrote: I split the image into R, G, B Worked out in QGIS wher the Raster map calculator is. Run...several times No result foud in Results Directory. It runs quickly then refreshes inputs and logs to blanks. I'm new to QGIS....so have probably left out something basic. Any clues _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org <mailto:Qgis-user@lists.osgeo.org> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user -- Richard McDonnell GIS Specialist PgD GIS AssocSCSI OPW FRM Data Management 52 Stephens Green, Dublin 2. TEL: 01 6476543 <http://www.opw.ie/> Email Disclaimer: http://www.opw.ie/en/disclaimer/
_______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
