Raster exports sharpness depends weirdly on export size
Hi gm team. GM13: My source is a IGN Spain 1:25k raster tile (8bit tif&tfw, UTM30, ED50, about 5000x4000 pixel). I load a tile, set interpolation to bicubic, reproject to Transverse Mercator WGS84. It looks perfectly sharp on screen. I export to 8bit geotiff image optimized palette using current screen pixel size. When I export just a very tiny "all data visible on screen", the result is perfectly sharp and fine and virtually indistinguishable from what I see on screen. So far so good. However, when I export a bigger "all loaded data" (all other settings equal!), the resulting image is unsharp and fuzzy. I tried plenty of different formats, 8bit/24bit, geotiff/ecw/etc, the results are always the same: All is fine when I export "all data visible on screen". But as soon as I go for bigger exports (either draw a box or all loaded data), things get unsharp and fuzzy. I dont really understand whats going on here. How does the dimension of the exported data set influence an exports image quality? PS: The forum kills all line breaks?!