No, we tried with 80 and it doesn't change anything.
On Mon, Dec 17, 2012 at 5:00 PM, thomas bonfort <[email protected]>wrote: > > > > On Mon, Dec 17, 2012 at 4:49 PM, Cédric MOULLET > <[email protected]>wrote: > >> Hi, >> >> Output formats: >> >> OUTPUTFORMAT >> NAME "png" >> MIMETYPE "image/png" >> DRIVER "AGG/PNG" >> EXTENSION "png" >> IMAGEMODE "RGBA" >> TRANSPARENT TRUE >> FORMATOPTION "INTERLACE=OFF" >> END >> >> OUTPUTFORMAT >> NAME jpeg >> DRIVER "AGG/JPEG" >> MIMETYPE "image/jpeg" >> IMAGEMODE RGB >> > > >> FORMATOPTION QUALITY=100 >> > does changing this to values between 80 and 99 change something ? > > >> EXTENSION "jpg" >> END >> >> URL's: >> >> >> 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 >> >> Thanks in advance for your help ! >> Cédric >> >> >> >> On Mon, Dec 17, 2012 at 4:24 PM, thomas bonfort <[email protected] >> > wrote: >> >>> Can you post the outputformats defined in your mapfile, and the urls >>> used to access each of these images? >>> >>> -- >>> thomas >>> >>> >>> On Mon, Dec 17, 2012 at 4:18 PM, Cédric MOULLET < >>> [email protected]> wrote: >>> >>>> 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 >>>> >>>> >>>> _______________________________________________ >>>> mapserver-users mailing list >>>> [email protected] >>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users >>>> >>>> >>> >> >> >> -- >> 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 >> >> > -- 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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