Hi, How about making a new layer through coverage view https://docs.geoserver.org/latest/en/user/data/raster/coverageview.html? A grayscale image from RGB might get better if different weights are applied to input bands but I do not know if it is possible with coverage views.
-Jukka Rahkonen- Lähettäjä: Jon Britton [mailto:[email protected]] Lähetetty: 8. tammikuuta 2019 10:59 Vastaanottaja: [email protected] Aihe: [Geoserver-users] SLD for styling RGB raster as grayscale Hi, We need to be able to provide a grayscale version of one of our map layers, however there isn’t an obvious way to do this. It easy to produce a single-band grayscale image, e.g.: <RasterSymbolizer> <Opacity>0.6</Opacity> <ChannelSelection> <GrayChannel> <SourceChannelName>1</SourceChannelName> </GrayChannel> </ChannelSelection> </RasterSymbolizer> However I need to include all bands. Is there a way to do this using an SLD without pre-processing the data? The image is RGB. Thanks, Jon Jon Britton Software Engineer, Delivery Team 0121 232 8007 07920101956 [email protected]<mailto:[email protected]> [Dotted Eyes Logo]<http://www.field-dynamics.co.uk> [Twitter]<https://twitter.com/field_dynamics> [LinkedIn]<https://www.linkedin.com/company/field-dynamics-consultancy> T: +44 (0) 121 232 8050 | E: [email protected]<mailto:[email protected]> | W: www.field-dynamics.co.uk<http://field-dynamics.co.uk> Field Dynamics is a trading name of Dotted Eyes Solutions Ltd. Registered office: 67-71 Northwood Street, Birmingham, B3 1TX. Company registration number: 9506624. This message may contain confidential and privileged information. If you are not the intended recipient, please accept our apologies. Please do not disclose, copy or distribute information in this email or take any action in reliance on its contents: to do so is strictly prohibited and may be unlawful. Please inform us that this message has gone astray before deleting it. Dotted Eyes Solutions Limited have taken precautions to minimize the risk of transmitting software viruses, however we advise you to carry out your own virus checks on any attachment to this message.
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