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Motivation:
Demo some powerful Adobe Photoshop Elements 2 effects
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The
before image |
The
after image |
In this photo edit session,
Adobe Photoshop Elements 2 (we shall refer to it hence forth as PhotoElements)
is put to a fairly stringent test - can it help produce some fairly subtle
effects . The shot is from the Bruce Trail Winter2002 series - and the desire
is to
emphasize ther first ice patch on the pond. The goal is to emphasize that while
styling the overall image to a mure luminous look. Let's see if PhotoElements
is up to the task.
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Instead
of Crop or Adjusting colors, sharpening the tendrils of newly formed
ice is the critical first task. Using Filters | Sharpen | Unsharp Mask
will hopefully bring up the new ice formation.
The "unsharp mask" ? The unsharp mask helps to sharpen by
changing the contrast gradient at edge boundaries of an image. But unlike
most other sharpen tools, the unsharp moves colors well beyond the edges
so it has a much more profound effect on the brightness/contrast of
the whole image. So caution is required - lest unintended side effects
predominate.
As can be seen
from the dialog on the left, users can control the amount, radius
and threshold
of the unsharp mask. There is a theory to the "unsharpening"
- but starting with finding the right radius of action and then controling
the amount and threshold settings works well. This tends to minimize
color and brightness shifts. As one progresses in digital darkroom
work one discovers just as in the wet darkrooms some adjustment can
be calibrated and I have seen graphics editors that have built up elaborate
tables of values or presets. More dialogs allow users to save those
prests. But a lot of work is sheer trial and error just like in the
old wet days. The big advantage is that all graphics programs allow
almost unlimited undo capabilities. |
| Using
Unsharp is just one of those tools that requires some trial and error
work to get the precisely correct look.However, I have seen very effective
images produced primaily with the Unsharp
mask
that do the opposite - take advantage of the eerie, unworldly look of
highly unsharped images. The setting as seen in the preview are "close"
to a desirable thin ice enhancement - so we stop. |
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Using
the Lasso tool , the next step masks off the ice so that any filters
will only be applied to the ice - not the rest of the image. Then choosing
Filters | Artistic | Poster Edges brings out the ice in both color and
area.
Now how did we know to use the Poster Edges tool ? Practice. Over time
we have discovered that the following Photo Elements Filters: Artistic
| Cutout, Artistic | Dry Brush, Artistic | Palette Knife and Blur |
Smart Blur smooth or move areas within edges in smooth, nifty ways.
The opposite filters, Artistic | Poster Edges, Artistic | Smudge Sticks,
and the Brush Strokes | Accented Edges emphasize the edge lines and
contours of the image selectively. So from practice one knows the most
effective filters for different situations/ purposes - Accented edges
produces exactly the look we need.
So strictly from practice one builds up a feel for which filters and
effects will be useful in different situtions. Again, it can't be
stressed
enough - trying thing using the Undo/Redo tools allows quick trial
of alternatives and helps build up the photo editing experience curve
. As a bonus those steps can be re-used in programs like PhotoShop,
PhotoPaint & PaintShopPro as macros or actions. |
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The
final steps for our image is to enhance the contrast, sharpen it up
and try some tonal curve corrections. Enhhance | Brightness Contrast
| Brightness Contrast pop up the dialog seen at the left. Note as you
make adjustments the brightness contrast changes for the whole scene.
This is one weakness of PhotoElements. Corel PhotoPaint and Jasc PaintShop
Pro provide both before and after thumbnail previews and the full image
preview option. These different preview modes certainly do cut down
time working on an image. |
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And
to underline the point the last two steps - Filters | Sharpen More and
deciding not to make a tonal correction after all would have gone faster
if the before and after preview thumbnails had been available. Educated
trial and error is speeded up by good preview facilities. |
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