[mapserver-users] quality of 8bit image in 6.0

[thomas bonfort]

should be fixed in r12767 and r12768, please confirm.

regards,
thomas

On Sun, Nov 13, 2011 at 19:57, Richard Greenwood
<richard.greenwood at gmail.com> wrote:
> Steve,
>
> I put a small test set together at:
>  http://www.greenwoodmap.com/mapserver-image-quality/test.zip
> It has a shape file and two map files, one for mapserver 5 and another
> for mapserver 6. There are a couple zoomed in mapext's in the comments
> of the map5.map file so you can quickly get to a good location at a
> couple representative scales.
>
> PNG8 produces a nice quality image which is about 1/2 the size of the
> default 24bit but still 4x the size of the ugly GIF. The pretty GIF
> produced by mapserver 5.6 is the same size as the ugly GIF created by
> mapserver 6.0.
>
> Thanks!
> Rich
>
> On Sun, Nov 13, 2011 at 10:08 AM, Lime, Steve D (DNR)
> <Steve.Lime at state.mn.us> wrote:
>> Rich: Any chance you could put together a test case? Also, have you tried IMAGETYPE PNG8?
>>
>> Steve
>> ________________________________________
>> From: mapserver-users-bounces at lists.osgeo.org [mapserver-users-bounces at lists.osgeo.org] on behalf of Richard Greenwood [richard.greenwood at gmail.com]
>> Sent: Saturday, November 12, 2011 5:43 PM
>> To: mapserver
>> Subject: [mapserver-users] quality of 8bit image in 6.0
>>
>> I can not achieve the same quality of 8bit images in MapServer 6.0
>> that I was able to in 5.6. I have links to 4 example images
>>
>> 1. MapServer 5.6 8bit gif, I like this and this is generally what I want:
>> http://www.greenwoodmap.com/mapserver-image-quality/mapserv-5.6.gif
>>
>> 2. MapServer 6. 8bit gif. Kind of ragged, center line not in the
>> middle of grey outlines.
>> http://www.greenwoodmap.com/mapserver-image-quality/mapserv-6.0.1.gif
>>
>> 3. I submitted a related ticket 3962 which has been fixed (Thank you!)
>> and the image is slightly better (compare  NW'ly edge of HWY 789 to
>> above image)
>> http://www.greenwoodmap.com/mapserver-image-quality/mapserv-6.0-ticket3962.gif
>>
>> 4. A 24bit png from MapServer 6.0. Beautiful, but 9x larger than the
>> three above.
>> http://www.greenwoodmap.com/mapserver-image-quality/mapserv-6.0.1.png
>>
>> I do not have an OUTPUTFORMAT block defined so I'm using default
>> setting in 5.6 and 6.0. (I've fiddled with OUTPUTFORMAT but I
>> generally seem to make things worse).
>>
>> Any suggestions would be greatly appreciated.
>>
>> Thanks,
>> Rich
>>
>> --
>> Richard Greenwood
>> richard.greenwood at gmail.com
>> www.greenwoodmap.com
>> _______________________________________________
>> mapserver-users mailing list
>> mapserver-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>
>>
>>
>
>
>
> --
> Richard Greenwood
> richard.greenwood at gmail.com
> www.greenwoodmap.com
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