Hi. I'm serving a set of png-files with mapserver, and when I request images as gif or png, the colors become very strange. Colors are fine if I request a jpeg-image, though.
The image shows precipitation on January 4th 1961. as png: http://norgena.met.no/wmsmapserv?SERVICE=WMS&FORMAT=image%2Fpng&SRS=EPSG%3A32633&VERSION=1.1.1&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&REQUEST=GetMap&BBOX=-74000%2C6450000%2C1120000%2C8000000&TIME=1961-01-04&LAYERS=rr&WIDTH=600&HEIGHT=775 as gif: http://norgena.met.no/wmsmapserv?SERVICE=WMS&FORMAT=image%2Fgif&SRS=EPSG%3A32633&VERSION=1.1.1&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&REQUEST=GetMap&BBOX=-74000%2C6450000%2C1120000%2C8000000&TIME=1961-01-04&LAYERS=rr&WIDTH=600&HEIGHT=775 as jpeg: http://norgena.met.no/wmsmapserv?SERVICE=WMS&FORMAT=image%2Fjpeg&SRS=EPSG%3A32633&VERSION=1.1.1&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&REQUEST=GetMap&BBOX=-74000%2C6450000%2C1120000%2C8000000&TIME=1961-01-04&LAYERS=rr&WIDTH=600&HEIGHT=775 Original image: http://norgena.met.no/klima/rr/1961/01/rr_1961_01_04.png Does anyone know what I can do to get colors that are as close to the original image as possible? This is what my mapfile looks like: --8<-- MAP name klimawms imagetype png extent -75000 6450000 1120000 8000000 size 1195 1550 units meters imagecolor 255 255 255 transparent on DEBUG off WEB METADATA "wms_title" "Metno Klima WMS" "wms_onlineresource" "http://norgena.met.no/wmsmapserv?"; "wms_srs" "EPSG:32633 EPSG:32634" END END # Web Interface Options PROJECTION "init=epsg:32633" END LAYER NAME "rr" DATA "../klima/rr/%year%/%month%/rr_%year%_%month%_%day%.png" TYPE RASTER STATUS ON OFFSITE 255 255 255 METADATA "wms_title" "Nedbør siste døgn" END END LAYER NAME "tam" DATA "../klima/tam/%year%/%month%/tam_%year%_%month%_%day%.png" TYPE RASTER STATUS ON OFFSITE 255 255 255 METADATA "wms_title" "Temperatur siste døgn" END END END # map --8<-- -- Trond Michelsen
