[Tilesathome] Lowzoom captions

[spaetz]

On Thu, Aug 07, 2008 at 08:53:32AM +0100, 80n wrote:
> The lowzoom layers are looking better than ever.  The latest version of tile
> stitching is producing nice sharp roads with good contrast.

Thanks, I like them too now. Thanks to jth for finding the right filters in the python imaging library.
 
> However, the captions that are being incorporated seem to have lost their
> white casings, which makes them look a bit thin and weedy.  Was this
> intentional or is there some problem with the compositing of the captions
> onto the tiles?

Yes, there's still a problem actually. Many of the caption tiles are not recognized as transparent PNG files (RGBA) but are loaded as (RBG) instead. In these cases, I just make it transparent, based on the pixel color value (ie it is bright). It's a clumsy workaround, but I haven't found why this would happen yet. Help on this would be much appreciated.
 
spaetz