Andrea Aime created GEOS-4919:
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Summary: Support alpha transparency in png8 output
Key: GEOS-4919
URL: https://jira.codehaus.org/browse/GEOS-4919
Project: GeoServer
Issue Type: Improvement
Components: WMS
Affects Versions: 2.1.3
Reporter: Andrea Aime
Assignee: Andrea Aime
Fix For: 2.1.4
Current PNG8 output cannot handle per palette entry transparency, but only a bitmask approach. Yet png8 is fully capable of having a alpha channel for each palette entry, allowing for translucent images. Improve the quantizer code to support that.
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