Dear list, I'm trying to convert an orthoimagery ESRI mosaic dataset for into an image pyramid served by Geoserver. As for storage capacity reasons I want to reuse all images of the mosaic dataset for the image pyramid. The image granules are compressed with JPEG compression algorithm. The pyramid as well as all overviews are defined in CRS EPSG:25832. For the level 0 the granules are in different/heterogenous projections.
So far I could reuse all images and create an image pyramid served by Geoserver. My actual problem is, that I'm seeing compression artefacts for the no data areas in the overviews. That means I'm seeing some pixels of the no data area as they are having a slightly different value as the no data value. Also I'm having white and black areas at the edges of the image mosaic within the source images (level 0) with actually no data. So my guess was to create a footprint shape clipping the images. That worked very well for the overview levels. Unfortunately when viewing the WMS at level 0 no image at all is shown. The footprint shape has the same CRS as the index shape (EPSG:25832). So my question is, does the footprint shape actually work with image granules in different/heterogenous CRS? Another question: Is there an alternative way to remove the no-data compression artefacts at the edges in the overviews without reprocessing the images? Kind regards, Dirk _______________________________________________ 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 Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
