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Re: [Geoserver-users] How to improve rendering quality WMS output from geotiff input
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From: Alexandre G. <ale...@gm...> - 2024-05-17 07:17:07
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Hello, It was finally the interpolation mode which was not good enough. By setting it to bicubic, I got a better result now. Regards Alexandre Le mer. 15 mai 2024 à 15:47, Alexandre Gacon <ale...@gm...> a écrit : > Hello all, > > My goal is not to view the WMS on QGIS, I just used it to compare the WMS > output to the original file. I have the same issue with the OL client. > > I will check the overviews. > > Alexandre > > Le mer. 15 mai 2024 à 15:20, Andrea Aime < > and...@ge...> a écrit : > >> Fair point. There is a QGIS plugin that allows to match exactly a cached >> tile layer zoom layer. >> E.G., https://plugins.qgis.org/plugins/lockzoom/ (works for common tile >> matrix sets, not sure if it does for custom ones too). >> >> Regards, >> >> Andrea Aime >> >> >> == >> GeoServer Professional Services from the experts! >> >> Visit http://bit.ly/gs-services-us for more information. >> == >> >> Ing. Andrea Aime >> @geowolf >> Technical Lead >> >> GeoSolutions Group >> phone: +39 0584 962313 >> >> fax: +39 0584 1660272 >> >> mob: +39 339 8844549 >> >> https://www.geosolutionsgroup.com/ >> >> http://twitter.com/geosolutions_it >> >> ------------------------------------------------------- >> >> Con riferimento alla normativa sul trattamento dei dati personali (Reg. >> UE 2016/679 - Regolamento generale sulla protezione dei dati “GDPR”), si >> precisa che ogni circostanza inerente alla presente email (il suo >> contenuto, gli eventuali allegati, etc.) è un dato la cui conoscenza è >> riservata al/i solo/i destinatario/i indicati dallo scrivente. Se il >> messaggio Le è giunto per errore, è tenuta/o a cancellarlo, ogni altra >> operazione è illecita. Le sarei comunque grato se potesse darmene notizia. >> >> This email is intended only for the person or entity to which it is >> addressed and may contain information that is privileged, confidential or >> otherwise protected from disclosure. We remind that - as provided by >> European Regulation 2016/679 “GDPR” - copying, dissemination or use of this >> e-mail or the information herein by anyone other than the intended >> recipient is prohibited. If you have received this email by mistake, please >> notify us immediately by telephone or e-mail >> >> >> On Wed, May 15, 2024 at 3:03 PM Georg Weickelt < >> geo...@ib...> wrote: >> >>> Hello Alexandre, >>> >>> I have a similar picture when I display tiles from wms-c. If you do not >>> exactly match the scale of the predefined grid set, QGIS stretches or >>> compresses the tiles. >>> If it is only WMS, this should not happen. >>> >>> Georg >>> >>> Am 15.05.2024 um 08:40 schrieb Alexandre Gacon: >>> >>> Hello there, >>> >>> I still have an issue on how to configure the best GeoServer to server >>> my geotiff files correctly, i.e. without quality loss. >>> >>> I have done some tests by working directly with the provided data, with >>> an image stored directly in the data_dir and published alone, without any >>> reprojection. >>> >>> As you can see below, when I put together in QGIS the WMS output from >>> GeoServer (the red square) and the original files for the remaining area, >>> there is a difference in quality. >>> >>> How could I improve this? >>> >>> [image: image.png] >>> >>> >>> -- >>> Alexandre Gacon >>> >>> >>> _______________________________________________ >>> Geoserver-users mailing list >>> >>> Please make sure you read the following two resources before posting to this list: >>> - Earning your support instead of buying it, but Ian Turton: http://www.ianturton.com/talks/foss4g.html#/ >>> - The GeoServer user list posting guidelines: http://geoserver.org/comm/userlist-guidelines.html >>> >>> If you want to request a feature or an improvement, also see this: https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer >>> >>> Geo...@li...://lists.sourceforge.net/lists/listinfo/geoserver-users >>> >>> _______________________________________________ >>> Geoserver-users mailing list >>> >>> Please make sure you read the following two resources before posting to >>> this list: >>> - Earning your support instead of buying it, but Ian Turton: >>> http://www.ianturton.com/talks/foss4g.html#/ >>> - The GeoServer user list posting guidelines: >>> http://geoserver.org/comm/userlist-guidelines.html >>> >>> If you want to request a feature or an improvement, also see this: >>> https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer >>> >>> >>> Geo...@li... >>> https://lists.sourceforge.net/lists/listinfo/geoserver-users >>> >> _______________________________________________ >> Geoserver-users mailing list >> >> Please make sure you read the following two resources before posting to >> this list: >> - Earning your support instead of buying it, but Ian Turton: >> http://www.ianturton.com/talks/foss4g.html#/ >> - The GeoServer user list posting guidelines: >> http://geoserver.org/comm/userlist-guidelines.html >> >> If you want to request a feature or an improvement, also see this: >> https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer >> >> >> Geo...@li... >> https://lists.sourceforge.net/lists/listinfo/geoserver-users >> > > > -- > Alexandre Gacon > -- Alexandre Gacon |
