Image and Colour
The artwork can consist of just about anything, providing it is two-dimensional: paintings in either acrylic, watercolour, oil or pastel, silk painting, pencil drawings, pen and ink drawings, etchings, screenprints, photographs, digitally created artworks or even textiles and fabrics.
Open your scanned artwork into an image manipulation program (e.g. Photoshop) on your computer. Such programs will allow you to alter the image in a number of ways such as cropping, rotating, resizing, adding text and changing both the contrast and colour balance. It is a good idea to always work on a copy of the scan, in case you make any errors.
If you have a good scan all you should need to do is crop any furry edges from the scan, unless you wish to dabble with the image and make some extra changes. It is advisable at this stage to print the image as a guide to see what results you get - what you see on the monitor is rarely a true representation of what will print.
Always be aware that:
a) Printers and inks will have different colour ranges or gamut. Different printers will print the same image differently.
b) Monitors have different colour configurations and will represent the image differently
Scanners will scan in RGB mode, and for inkjet printing it is best to keep working within this colour mode, as it has a broader range of colours. You should not need to work in CMYK unless you are creating images for four colour offset litho.