Microtek 35t plus User Guide

The Shadows and Highlights tool lets you change the shadow and highlight
points of an image.

By using this tool, you can manipulate shades so that the Shadow point
becomes the new darkest value and the Highlight point becomes the new
lightest value. Shades that are darker than the shadow then become black,
and shades lighter than the highlight become white. For example, if you set
the highlight point to 200, all points in the image with a value greater than
200 will be mapped to a value of 255, since 255 represents the "whitest"
white.

The Shadows and Highlights tool can be used for both grayscale and color
images. If you have a limited range of grays between your lightest and
darkest point, using shadows and highlights will have the effect of extend-
ing the range of grays and make more detail in the image visible. This tool
is not available for use with line art or halftone scan modes.

To change the shadow
and highlight points of
an image.