I realize that links have been sent and not pictures Here are reachable links for the three cases: 1. https://picasaweb.google.com/lh/photo/j_OClw5fGOeQE7K1wiimytMTjNZETYmyPJy0liipFm0?feat=directlink 2. https://picasaweb.google.com/lh/photo/3q52h52EwOp9JzZm3KAWbNMTjNZETYmyPJy0liipFm0?feat=directlink 3. https://picasaweb.google.com/lh/photo/GTAThw7AOVMK-j-7DWAabtMTjNZETYmyPJy0liipFm0?feat=directlink Cédric
On Mon, Dec 17, 2012 at 4:11 PM, Cédric MOULLET <[email protected]>wrote: > Hi, > The following issue has been observed with MapServer 6.0.3: > > 1. Very good quality for a PNG with RESAMPLE=BILINEAR and > OVERSAMPLE_RATIO=16: > [image: > http://wms-bgdi.bgdi.admin.ch/?lang=xx&LAYERS=ch.swisstopo.pixelkarte-grau-pk100_bazl&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&SRS=EPSG%3A21781&BBOX=513184,143152,519840,149808&WIDTH=256&HEIGHT=256] > > 2. Less good quality for a PNG or JPEG with default resampling settings: > [image: > http://wms-bgdi.bgdi.admin.ch/?lang=xx&LAYERS=ch.swisstopo.pixelkarte-grau-pk100_original&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&SRS=EPSG%3A21781&BBOX=513184,143152,519840,149808&WIDTH=256&HEIGHT=256] > > 3. Awful quality for JPEG with RESAMPLE=BILINEAR and OVERSAMPLE_RATIO=16: > [image: > http://wms-bgdi.bgdi.admin.ch/?lang=xx&LAYERS=ch.swisstopo.pixelkarte-grau-pk100_bazl&FORMAT=image%2Fjpeg&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&SRS=EPSG%3A21781&BBOX=513184,143152,519840,149808&WIDTH=256&HEIGHT=256] > > Any idea why the OVERSAMPLE_RATIO affects heavily the quality of JPEG > images ? > > Thanks in advance for your help, > Cédric > -- Political blog: http://cedricmoullet.blogspot.com/ Welcome to my world: http://www.cedricmoullet.com/ My Linked In profile: http://www.linkedin.com/in/cedricmoullet Twitter: http://twitter.com/cedricmoullet Home sweet home: http://map.geo.admin.ch/?crosshair=bowl&zoom=11&X=185241.24219&Y=561288.90625&bgOpacity=0&selectedNode=node_ch.swisstopo.fixpunkte-lage1
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