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Correcting Color
In Photoshop Elements
There is an automatic feature for correcting color in Photoshop
Elements but it don't work particularly well with this image.
What it did was make the green color cast darker and that is not
particularly good, is it? Maybe the auto feature will work
with some images but what is one to do with an image like this
that appears to be immune to the auto feature?
Easy - do the color correction manually and you know something - it
really isn't particularly difficult.
Correcting Color
With The Average Filter
This is a simple five step procedure to eliminate a nasty color cast
like the one in this image ...
Step One
Duplicate the background layer

Step Two
Go to Filter >
Blur > Average.
There are no settings for
the Average filter so it will be applied immediately.
What you will notice is that the duplicated background is now a really
ugly green color. This is the overall color of the image
which makes sense because of the color cast of the original.
Step Three
On your keyboard press Ctrl-I (Windows) or Cmd-I (Mac) to invert the
color of the Background Copy layer. This creates quite a dramatic color
shift on the Background copy.
This happens because the original color cast has been replaced by its
inverse - the color that is missing in the image.
It may seem strange but stay with it - it will all work out in the end
...
Step Four
Change the Blend Mode
of the Background copy layer to Color.
If you are not sure about Blend Modes you can check them out here.
Anyway - now the image is visible with a new color cast - blue and here
it is ...
Step Five
Lower the Opacity of the Background layer until the you are happy with
the new look of the image. I have found that it starts to
change at around 40% opacity.
This is a big improvement but the image is lacking some punch ...
Tune Up
Here is the Histogram for the adjusted image. The Histogram
is squished toward the shadow end with very few highlights however it
is a vast improvement over the original Histogram, isn't it?
If you are not sure about the Histogram then click here.
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| Original Histogram |
Histogram After Correcting The
Color With
The Average Filter |
With Elements the best method to expand the Histogram is with the
Levels command.
Step Six (Optional
- but a good idea)
Add
a Levels Adjustment Layer above the Background copy layer.
(Click here if
you need to brush up on Levels).
When the Levels dialogue appears move the Highlight slider (the one on
the right) to the left until it is just below the point where the
Histogram starts to rise.
As you move the slider the image will become lighter and the Histogram
will stretch to the right.
Keep an eye on the Histogram - what you want to avoid
is clipping the highlights (a tall spike appearing on the
right end of the Histogram). If you see a spike starting to
climb up the right side back off a bit.
Clipping is not good because it means you have pixels that are pure
white with no detail at all.
Here is the final image after Levels have been applied to the image.
It may be necessary to back to the Background copy layer and fuss about
with the Opacity again if the Levels adjustment causes any color
shifting.
If you are satisfied then simply flatten the image and your correcting
color procedure is done.
Now isn't this an easy and straight forward technique for correcting
color?
Video
The correcting color video was competed with Photoshop, however it
works exactly the same with Photoshop Elements.
Rather than using a Levels Adjustment Layer with the Photoshop
technique, a Curves Adjustment Layer was used and Curves Adjustment
Layers are not available with Elements.
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Page Links
Average Filter
Tune Up
Video
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