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Image Editing Techniques - I would like to make unhealthy, withered-looking grass a more vibrant green.

Use Color Control Points to make brown, withered-looking grass a more vibrant green.
Before

Before

Image before enhancement.
The grass appears brown and withered.
After

After

Image after enhancement.
The color of the grass is enhanced
to appear a more vibrant green.

STEP1

Position a Color Control Point over the grass portion

1
Select the Color Control Point tool.
2
Position the Color Control Point over the grass portion.



STEP2

Change the enhancement mode to RGB

1
Click BCS and select RGB from the pulldown menu.
2
RGB mode is applied.



STEP3

Enhance green using the G slider

1
Drag the handle on the Color Control Point’s G slider to the right to enhance green.
2
Slide the Color Control Point’s uppermost Size slider to specify the effective range of green enhancement.





STEP4

Duplicate the Color Control Point

1
Duplicate the Color Control Point to enhance the dull color of the green (shorter grass surrounding the hole) on the right side of the image. Position the mouse cursor over the Color Control Point and right click (hold down the CONTROL key and click on a Macintosh). Select Duplicate Control Point from the menu.
2
A new Color Control Point, with the same settings applied as the original Color Control Point, will be placed near the original.
3
Move the second Color Control Point so that it is positioned over the green on the right side of the image.
4
The color of the green becomes more vivid.







STEP5

Remove the effects of the Color Control Point

1
The second Color Control Point enhances the color of not only the green, but also the trees in the background.
2
Color in this portion can be reverted to the original colors by positioning an additional Color Control Point that removes enhancement effects.
3
Adjust the Size slider for the additional Color Control Point to include the range in which enhancements applied with previous Color Control Points will be removed.
4
As many additional Color Control Points as necessary can be positioned over the portions of the background, which should not be enhanced, affected by enhancements applied with previous Color Control Points. We have positioned additional 3 Color Control Points (altogether 4 Color Control Points) over the portions of the background.









STEP6

Check results

The image below shows the results of enhancement. A step is added to the Edit List for each Color Control Point used on the image.

Tip : Another use for Color Control Points—preventing the effects of other Color Control Points

Color Control Points affect all colors similar to the color over which they are placed within the specified range. Therefore, enhancements are sometimes applied to portions that they should not be. To avoid this, Color Control Points, at their default settings, can be positioned over portions that should not be enhanced, as we have shown here. Further, by enabling (checking) the Protect Details option in the Advanced portion of the Color Control Point dialog, operation and enhancement errors can be prevented as enhancement sliders are hidden and only the Color Control Point’s Size slider is displayed.




To confirm the range that is not affected by enhancements with other Color Control Points, enable (check) the Show Selection option in the Advanced portion of the Color Control Point dialog. Portions shown in white indicate the effective range of the current Color Control Point (in this case, the range that is not affected by enhancements with other Color Control Points).