HP Scanjet 6200c HP Scanjet 6200C Scanner PrecisionScan Pro - (English) User G - Page 74

Pixel distribution histogram, Adjusting images of, pictures, Book Contents, Index

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Pixel distribution histogram The histogram in the Exposure Adjustment tool is a graph of the distribution of pixels in the selection area. The vertical lines in the histogram show the current settings for Shadows and Highlights. – The magenta line in the histogram represents the current setting for Shadows, the darkest areas in the image. — The red line in the histogram represents the current setting for Highlights, the lightest areas in the image. ˜ The turquoise line appears in the histogram when either eyedropper pointer is positioned over the image. It shows you where the pixels at that place in the image occur in the histogram.  TIP s Changing the settings for Highlights and Shadows does not change the graph in the histogram. s Changing the selection area changes the graph in the histogram. s The Midtones setting is not represented in the histogram. s The graph in the histogram represents pixel distribution in the input image, not in the image that will be output. – Shadows — Highlights ˜ Pixels under the eyedropper pointer È 4 Adjusting images of pictures Book Contents Index È HP PrecisionScan Pro User's Guide 74

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4
HP
PrecisionScan Pro
User’s Guide
74
Adjusting images of
pictures
Book Contents
Index
Pixel distribution histogram
The histogram in the
Exposure Adjustment
tool is a
graph of the distribution of pixels in the selection
area. The vertical lines in the histogram show the
current settings for
Shadows
and
Highlights
.
The magenta line in the histogram represents
the current setting for
Shadows
, the darkest
areas in the image.
The red line in the histogram represents the
current setting for
Highlights
, the lightest areas
in the image.
The turquoise line appears in the histogram
when either eyedropper pointer is positioned
over the image. It shows you where the pixels
at that place in the image occur in the
histogram.
Shadows
Highlights
■
Changing the settings for
Highlights
and
Shadows
does not change the graph in
the histogram.
■
Changing the selection area changes the
graph in the histogram.
■
The
Midtones
setting is not represented in
the histogram.
■
The graph in the histogram represents
pixel distribution in the input image, not
in the image that will be output.
TIP
Pixels under the eyedropper pointer