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Recently (April, 2010), I purchased a FujiFilm HS-10.
This camera
will shoot Raw images, and comes supplied with a Raw
File Converter (RFC). This is 'powered' by SilkyPix, and
is similar to the SilkyPix Developer Studio, albeit with
a little less functionality. Still, it is very usable.
I normally use other applications for processing
Raw files. At present (May, 2010), RFC, and SilkyPix
Developer Studio (or Pro), are the only
applications which will support the HS-10 Raw files.
The HS-10
delivers beautiful Jpeg images, if it is used correctly.
If shooting Raw, much more control can be had over the
resultant output. Particularly in terms of exposure,
contrast, sharpening and, perhaps most importantly,
noise control.
Processing
raw images can seem a little daunting, and confusing,
for a first time user. So, I have put together some
notes about a set of process steps which can be used to
get good results from RFC.
In the illustrations
below, I will describe the typical step by step process which I use for
converting, and adjusting, a Raw file from the HS-10
using RFC.
The original
Raw file, I have used in this example, is available
here if you wish to
download and play with it yourself.
Have fun.
Note : I have kept this
first example fairly straightforward, as it is designed
to help as much with familiarisation with RFC, as the actual processing of an image.
Also, I have chosen a particular image, for this first example, as
it has fairly even exposure and much foliage. I will add
more examples over time.
For a second RFC
process example - Click
here
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Step One -
Opening and displaying the image
As with all
applications, simply select File/Open, and then select
the Raw file you wish to work with in RFC.
Once the file is open, right click on the image and select
the display size you wish to work in. To start, I normally select the size as 25%, and then enlarge the
image to comfortably fit the display.
Once a size
is selected, the 'magnify' icon can be used to easily
move the image around the display area.
This is
particularly useful when working at larger
magnifications.
Note : If
you select 'Fitted Display', you cannot move the image
within the display. This is why I use the other option.
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Step Two -
Checking for any highlight/shadow exposure issues
Here, I have
enlarged the image to 32%, to comfortably fit in my
display area, and have positioned it to the left of the
display.
At this
point, I select 'View/Display warning/Enable both
Highlight/Shadow warning'. This will present a flashing
warning to show any areas which have highlights which
are 'clipping', or shadows, which are 'blocked'.
Note :
Clipping simply means that an area in an image has been
over exposed. Either for all the colour channels (RGB),
or for some. Blocked means that an area in an image is
under exposed to the point where nothing has been
captured. Again, either in all the colour channels, or
for some.
For a
more detailed understanding of exposure, clipping, and
blocked, have a look
here (Cambridge In
Colour). In my opinion, some of the very best tutorials,
and attendant examples, for photographers, available on
the web. And, they're free !!
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Step Two
(continued) - Checking for any highlight/shadow exposure issues
Now that I
have turned on my 'warnings', the image
below shows areas of the image which are clipping, and
are blocked. I have set a pointer to the clipped
highlight areas, but there are also some blocked shadow
areas at lower right, and upper left. These show up as
bright white 'spots'.
In reality,
and for this image, none of the 'warning' areas give me
any cause for concern. Overall, the exposure is quite
good.
Note : I
use the warning simply to show me where any 'clipped'
areas may be. Once I have an understanding, I click
'View/Display warning/Disable warning', to turn it off.
Otherwise, it will flash continuously and be very
distracting. Leave it on and see what I mean.
As I
process the image, I may turn it on again, from time to
time, to see how my process steps are affecting these
areas.
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Step Three -
Fine tuning white balance
This is the
first step of the actual processing stage. It is best to
do this step first, as other adjustments can affect the
overall 'balance' of colours in the image.
Overall,
with this image, I am fairly comfortable with the default white balance
(WB). However, as with most images, I wish to adjust the
WB slightly.
In this case, I want to 'warm' the image a
little, and without affecting the overall green feel of
it.
To do this,
I simply open the WB options and adjust my values to
suit.
Note : Many
HS-10 images, when first opened in RFC, seem to have
slightly incorrect WB.
This should
always be the first step when working with an image in RFC. If you are comfortable with the white balance, when
you open your own image, you can omit this step. If not,
do this before moving on to other adjustments. You can
always come back and fine tune the values, as you go.
Tip : If
you get the WB totally messed up, simply click where it
says 'Manual' and then select Fine (5200K) to go back to
the default settings.
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Step Four -
Contrast adjustment prior to noise reduction and
sharpening
This is my
next step in the work flow.
This is a
simple preliminary step before we move onto noise
reduction (NR) and sharpening.
For this
step, we simply click where it says 'Average contrast'.
This will display a set of preset contrast options.
Here, I will
select 'A little low contrast'.
Note :
Increased contrast also increases noise. It can be
tempting to do your contrast adjustments at this point,
however, lowering the contrast here, performing any NR,
and sharpening, and then coming back to the contrast
adjustments, will ensure a cleaner finished image.
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Step Five -
Turn off all sharpening and noise reduction controls
To
effectively control the sharpening and noise levels,
first we need turn them all off.
To do this,
click the sharpness, and then the noise reduction icons
and set all levels to zero. All of them.
Note : At
this point, I have enlarged the image to 65%
magnification. You can work at any size desired. For me
this is a good balance as it is showing the image at an
equivalent print size of about 18 x 24". This is far in
excess of most normal printing activity.
When I
downsize later, I can be confident that an image printed
at, say, 12 x 16" will stand up to close scrutiny.
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Step Six
- Apply noise reduction to any colour noise in the image
After
setting all Sharpness and Noise reduction values to
zero, reselect the Noise reduction icon, and adjust the
'False color ctrl' slider to suit.
I have found
that you can be very heavy handed here. I have even used
100% for some images.
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Step
Seven - Apply sharpening to the image
Reselect the
Sharpness icon and adjust the values to suit. As a
starting point, you can simply reapply the default
values by clicking on the inverted arrows above each
slider.
Here, I have
applied values of 65, 85, 40.
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Step
Seven (continued) - Apply sharpening to the image
At this
point, let's quickly review what we have done.
I applied a
slight adjustment to the WB, negated all NR controls and
then reapplied some colour noise NR. I also negated all
sharpening controls, and reapplied sharpening levels.
So, if we
now set the image magnification back to 32%, this is how
it looks.
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Step
Seven (continued) - Apply sharpening to the image
At this
point, I wish to jump back and do a quick check of what
is happening with my clipped highlights, and blocked
shadows.
This is how
it looks. Black areas are over exposed highlight
warnings, and white areas are blocked shadow areas.
Reality, not
enough to worry about.
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Step
Eight - Reapply contrast to the image
I'm
comfortable with the little noise there is in the image,
the level of sharpness, etc. Now I wish to give the
image a little 'pop'. To do this, I am simply going to
adjust the contrast settings.
Here, I have
increased the Contrast and Black Level controls. I have
also shifted the Contrast center to the right, and
raised the Gamma value to keep some overall lightness in
the image.
Note :
Remember that the more you apply contrast, the more you
will accentuate any noise in the image. Whilst I am
working at 32% magnification for the purpose of this
exercise, I often jump to higher levels to check my
adjustments
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Step Nine
- Saving the image
Well, that
is all I am going to do. It may seem like a lot of
steps, really it is few.
All I have
really done is to 'warm' the image very slightly, get
the sharpness and NR under my control, and add some
contrast.
Now I am
going to save the image.
To do this I
simply select the Development icon and the 'Save As'
options window will open. I have also clicked the
'Preview button so I can preview any steps I take here.
I am using the file
format of DSCF3349 RFC Final.jpg. This is so I know that
it has been developed in RFC, and this is my final
version.
I have also elected
to add a very small amount of extra sharpening in this
step. Here I have applied the values of 20, 0.3, 3.
That's about it. So,
I will simply click the Save button.
Below this
illustration, I have put the image as first opened in
RFC, and then followed by the final image.
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Below is an example
of the image as first opened in RFC, followed by the
final image I saved.
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The image as opened
in RFC, and with the RFC default settings.
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The image as
finished using the RFC adjustments as described in the
process steps above.
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For a second RFC
process example - Click
here |
www.pixplanet.biz |
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