id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc
3208,PNG transparency of color 0 not working,jake,jake,"The NoDataValue is not interpreted as a transparent color value when it is set to 0 in the PNGCreateCopy function. This applies to both gray scale and RGB images but not images with a palette.

If the image is of type RGB and the MetaItem NODATA_VALUES is set to ""0 0 0"" the transparency value is correctly written to the PNG but not if GDALRasterBand::SetNoDataValue function is used set the nodata value to 0 for the bands.
 
If the image is of gray scale type the NODATA_VALUES is not used at all and GDALRasterBand::SetNoDataValue does not work if the nodata value is 0.",defect,closed,normal,1.7.0,GDAL_Raster,svn-trunk,minor,fixed,png transparency nodata,