I have the Picasa photo viewer (PicasaPhotoViewer.exe) set up as my default app for
basic image viewing. It's generally fast, makes it easy to scroll through a
folder full of images, and lets me zoom in and out at lightning speed using the
mouse wheel. All good.
I had a need to clean up some not-so-great scans of photocopies. The pages
included both text and music. This made it a bit tricky to process since the
music had very thin lines. I needed the text darker, but without amplifying the
background noise, and this tended to fade ...