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Motivation:
Painter 8 takes a novel approach to color adjustments
Software:
Corel Painter 8
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The
before image |
The
after image |
One of the attractions
of Corel Painter 8 its its virtuouso natural painting capabilities. But
the nagging
question prevails - how will Painter stand up in the rough and tumble touch
up business of color photo editing- and specifically color adjustments. Well
as it turn out Painter has all the basic tools for color corrections and
adjustments - Brightness/Contrast, HSV-Hue/Saturation/Value and Equalize.
But as we
discovered - some like Brightness Contrast shouls be tossed out, and others
refined; however on the whole Corel painter has some very useful color correction
options.
We start with an image of a resort near the Applachian trail which has been
under-exposed and needs some color pickup. As noted we looked and passed on
the Effects | Tonal Control | Brightness Contrast as two primitive(it should
have 3 dimensions like Corel PhotoPaint's Brightness/Contrast/Intensity otherwise
drop this command). Instead we use the Effects | Tonal
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| Control command as shown to the left. And
we adjust the Value setting way up to the maximum. And as can
be seen from the thumbnail, there is still room for a slighter lighter
image - but we shall first correct for the overall bluish tinge. However,
check out and compare the standard command dialog preview
features in PaintShop Pro. We find the Painter dialogs sparse in
comparison and simpler than even Corel's own PhotoPaint.
But unlike HSL tools in PhotoShop or PhotoPaint where the Lightness setting
is too flat (its applied as a Uniform Color), the Value setting really
works in Corel Painter 8. |
And this is because the HSV-Hue SaturationValue allows for 5 settings:
- Uniform Color - delivers the same lightness change uniformly across
the image. This matches fairly closely the way Photoshop and PhotoPaint
HSL dialogs work;
- Image Luminance - uses the current image luminance to adjust certain
areas more than others
- Original Luminance - uses the original starting luminance to make non-linear
adjustments;
- Paper - uses the underlying paper assigned by Painter to apply non-linear
adjustments;
- Selected Channel or Layer Mask - to apply non-linear HSV adjustments(black
no adjustment; white complete adjustment; grey equals shaded adjustment).
The result is a very powerful and precisely controllable color adjustment
tool. The downside is that users must master the use of Channels and/or Layer
Masks to
make "some color corrections".
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So in the next step the we need to remove
the light bluish tinge to the image. And using the Effects | Tonal Control
| Color Correction command the correction is easily done. In fact this
is like the Curves tool in Photoshop and PaintShop Pro but with 3 more
modes of operation: 1)simple brightness/contrast changes; 2)dragout curves;
3)freehand draw; and 4)advanced mode. More importantly all of the
above modes work with individual R/G/B colors or with all three colors
at once.
The results is that it is trivial to correct for too much blue. Using
the Freehand mode of the Colors Correction command, the image is restored
to a warmer overall color tone with a little trial and error work.
Visually it is easy to follow. Going below the diagonal line subtracts
Blue and add its compliment, yellow to the image. The lower left represents
the darker shades of blue (or its compliment a deepl yellow gold) where
as the top right is the lightest or most pastel shades of blue(lowest
hue
saturation)
. as you make the corrections they are reflected on the image. Thus
trial and error work is easy to do. So the
next task
is to add a little |
more punch to image. We could do this using the Color Correction with the Master
mode selected instead of the the Blue hues. However, Painter 8 has another
tonal correction command, similar to Histogram Adjustment from PaintShop Pro
that automatically uses the images underlying color histogram to guess at
the best equalized hue saturation correction for the image.
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As always with the automated corrections, the best
guess of Painter's Equalize command is a bit strident. By backing of a bit
- moving the Black point at the left to include bit more of the histogram and
the same for the White Point (move a bit more to the right), the color adjustment
is softened and more pleasing.
Because color adjustments are so hard to do - expect more of these automated,
"best-guess" tools to be appearing more often in graphic editors. PaintShop
Pro already has nearly a half-dozen. I like the approach that Painter has
taken - make the tools simple - and the amending corrections |
obvious to the user. Otherwise, as in the PaintShop Pro's Histoigram Adjustment,
the user can quickly get lost in a complex of color correction controls.
But we stop our color corrections to this image as we have achieved our overall
goal of removing an under exposure while adding a little color pickup. But
it is
useful to that Painter 8 has the usual Posterize, Negative Image, and Brightness
Contrast command. But there is greater richness to be found in the Effects
| Surface Control set of menu commands.
For example, the Dye Concentration command works with Saturation and Value
settings simultaneouly and is a good alternative to the HSV correction just
used above. Likewise the Color Overlay works along the Hue and Saturation
dimensions. But the most interesting command is Apply Lighting. here Painter
has taken the
external lighting bull by the horns and provides about two dozen lighting
presets such as Splashy color, Drama, Side lighting to get users started on
the often
time consuming task of getting the exact lighting right on a subject or image.
However, graphics editors using Painter 8 must remmember every image they work
with has two additional "automatic layers" attached to it - a paper or surface
and a pattern or texture. The trick is to realize that these auto-layers can
play a role not just in how brush strokes appear but also how general color
corrections are applied. This allows for a richness of expression but also a
complexity of control. And this makes Painter's choice of a few basic color
correction tools but with a broad set of basic controls more compelling for
the environ that Painter provides. the bottom line is that Painter's color
corrections tools are again different and compelling enough to bring this graphics
editor back time and again to make color corrections that can't be done as quickly
and effectively anywhere else.
Jacques Surveyer has also written a full review of Painter
8 here.
PhotoFinishes
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