Histogram
Histograms analyze image color composition.
Pressing "H" on
your keyboard will toggle the Histogram Window open or closed.
The Histogram Window doesn't do anything in and of itself, but
rather is a a tool designed to help you decide what you
need to do to improve your image. The histogram window displays
a graph of the color values of the active window in RGB and
luminance. Full luminance is white while zero luminance is black.
The numbers at the top of the window display the number of pixels
that match the histograms max., min., and average values.
The spectrum for a color is on the horizontal axis while the
portion of the image's color that matches that spectrum is displayed
on the vertical axis. The check boxes at the bottom allow you to
turn off the graphing of certain colors or the luminance.
The Histogram Functions modify an image or a selection within
that image based upon its luminance histogram.
There are two Histogram Functions within Paint Shop Pro,
the Equalize Function and the Stretch Function. These functions are
located on the menu bar under the Color dropdown menu or can
be applied with keystroke Shift+E for Equalize or Shift+T
for Stretch.
The Stretch and Equalize functions may be applied to a selection within
an image or to the entire image. The Equalize Function smooths or
evens out the Histogram resulting in
an averaging of the image or selection brightness while the Stretch
Function will adjust the luminance so that the entire spectrum is
encompassed..
Color Palette
Introduction to Paint Shop Pro 5 : Table of Contents
Toolbar & Tool Palette
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