Autotek autocad raster design 2010 사용자 설명서
NOTE The preview reflects the image as it was read from the disk. If you
have made any display-only adjustments to the image using the AutoCAD
IMAGEADJUST command, then those adjustments are not displayed in the
image preview. If you make adjustments to the image using the Histogram,
the adjustments made with IMAGEADJUST are no longer applied to the image;
instead the new settings are applied.
have made any display-only adjustments to the image using the AutoCAD
IMAGEADJUST command, then those adjustments are not displayed in the
image preview. If you make adjustments to the image using the Histogram,
the adjustments made with IMAGEADJUST are no longer applied to the image;
instead the new settings are applied.
4 If you selected a color image, then select a color channel to equalize. You
can equalize the combined RGB channels, or you can select a single
channel (Red, Green, or Blue).
channel (Red, Green, or Blue).
5 To adjust the scale in the histogram window, move the slider up and
down. Moving the slider up increases the scale such that low frequency
values become more visible and the highest frequency values become
truncated by the top of the window.
values become more visible and the highest frequency values become
truncated by the top of the window.
6 Click Apply to equalize the image(s).
7 If you specified a sub-region in step 2, select an option from the Apply
Changes To section:
■
Sub-Region applies the changes to the sub-region only.
■
Entire Image applies the changes to the selected image.
8 If the sub-region is associated with an 8-bit color image, select a palette
option from the Sub-Region Options drop-down list:
■
Retain Current Palette applies your changes to the sub-region by
mapping to the closest colors from the current palette. This option
maintains the current palette and will not affect pixels outside the
selected region.
mapping to the closest colors from the current palette. This option
maintains the current palette and will not affect pixels outside the
selected region.
■
Rebuild Palette With All Colors creates a new palette to best
accommodate all colors in the entire image. Because this image
changes the palette, pixels inside and outside the sub-region may be
affected by this option.
accommodate all colors in the entire image. Because this image
changes the palette, pixels inside and outside the sub-region may be
affected by this option.
■
Rebuild Palette With New Colors also creates a new palette, but this
option guarantees that colors in the sub-region are included in the
palette by giving preference to those pixels over pixels outside the
sub-region. Because this image changes the palette, pixels outside the
sub-region may be affected by this option.
option guarantees that colors in the sub-region are included in the
palette by giving preference to those pixels over pixels outside the
sub-region. Because this image changes the palette, pixels outside the
sub-region may be affected by this option.
9 Click Close to exit the Histogram dialog box.
Adjusting Images with the Histogram | 97