If they have a bluish tint, it's because the scanner settings are scanning the drawings in RGB color instead of grayscale (which would yield only black, white and shades of gray, and is best for lineart and pencil drawings.)
As for programs- I use the GIMP, which is *free* and basically does almost everything that PhotoShop does. My review of it + links to download the GIMP and free extras for it is here (http://grouperkun.livejournal.com/78907.html). I prefer it to PhotoShop- and it's really great for tweaking the colors/shades of imported drawings and fixing mistakes in them.
no subject
As for programs- I use the GIMP, which is *free* and basically does almost everything that PhotoShop does. My review of it + links to download the GIMP and free extras for it is here (http://grouperkun.livejournal.com/78907.html). I prefer it to PhotoShop- and it's really great for tweaking the colors/shades of imported drawings and fixing mistakes in them.