Manual

June 2004 Isis® Sonar User's Manual, Volume 2 84
Table E-5. Enhance functions in the Enhance dialog box
Option / Area Meaning
Histogram
(area)
•
Initial (check box): Graphs the dynamic range
distribution of the image’s colors for the current image
(enhanced or not). Thereafter, each instance of a
modified image is graphically superimposed (layered)
in the histogram window if
Initial remains checked. If it
is unchecked, then the histogram just shows the latest
enhancement performed.
Colors in the histogram can be red, green, and/or blue.
•
G (green): This represents the original color as loaded
from disk before any processing enhancements are
applied (same as “original” column of histogram).
•
R (red): This represents the image after all processing
steps are applied.
•
B (blue): When blue is present, it represents the
intersection of red and blue colors. Therefore, it defines
the area of the image where original and processed
colors completely overlap.
• To the right of the histogram are two columns labeled
Original and Current.
Original means those values that
are present in the original image before any processing
occurs in Enhance/ELT.
Current means those values
that are present in the current image based on the
enhancements performed so far on the thumbnail.
Appendix E: Using the Target Utility