i used paint.net to try and blur a background round a yellow rose, and this was the result:
yellow rose by
alexharrison101, on Flickr
nasty haloing. how can i avoid this? (apart from using a wider aperture to naturally blur the background more anyway).
i don't have elements, i'm afraid, so general tips please. i used a gaussian blur after selecting the rose and inverting the selection. i did play about with the settings on the blur function, but all seemed to create this halo...is it just the high colour contrast between the yellow and the green that is affecting things?
this is the shot before the blur (just a bit of sharpening and noise reduction):
yellow rose 2 by
alexharrison101, on Flickr
maybe it's better without the blur anyway(!)...