Color mapping techniques such as solarizations & posterizations
can turn photographs into artworks. Posterization filters remove
gradations of colors, creating areas of solid colors. The solarization
filter allows us to create the appearance of a negative photographic
image. The effect is very pronounced in color images. Also, some image
manipulation software provide special "pschedelic" filters which apply
colors such as hot pink, bright orange or cyan to the image. We can
use such filters to jazz up your documents whenever the filter style
matches the look of the document.