A method and system for de-screening an image signal utilizing a bank of
filters to provide several increasingly blurred versions of the original
image signal is disclosed. At any given time, only two of these blurred
versions are created, on a pixel-by-pixel basis. The outputs from the
selected pair of blurred signals are then blended together to create a
variable blending output that can vary smoothly from no blurring to
maximum blurring in a smooth and continuous manner. In addition, the
method provides the capability to enhance text and line art by using a
variable un-sharp masking mechanism with independent post-blur sharpening
control, and the capability to detect and enhance neutral (no-color)
output pixels.