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double subject of sharpening images an
area that is really outside the scope of
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this course but if you want to educate
yourself about what sharpening is how it
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operates from a technical standpoint
that I would like to refer you to the
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lynda.com course by Chris Orwig entitled
photoshop cs3 for photographers
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sharpening he will explain what
sharpening his and all the different
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ways of doing it went to do it when not
to do it now having said that the issue
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of sharpening is a very subjective
issues so I have my take on it chris has
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is and hopefully between the two of us I
think you'll arrive at least with a full
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understanding of what sharpening his and
when and when not to do it so let's go
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ahead and navigate to capture one and we
have this excellent picture of Kelly and
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I love this image and I'm going to just
go ahead and white balance this cuz it's
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like fingernails on a chalkboard look at
it the way it is okay that's much better
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for now but you can obviously see this
image is not in focus can confirm that
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if we look at a hundred percent
magnification definitely not in focus
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that's what's called camera shake let's
go back to full view now
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sharpening at this point in the process
is really contrary to my theories on the
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sharpening process basically less is
more
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now as you look at an image on a
computer screen and you add sharpening
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when it appears on the computer screen
it looks great when you go to print an
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image that you've applied it that much
sharpening on it looks horrible so you
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always have to strike a balance about
number one win to sharpen number two
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what image to sharpen on alert when
you're wasting your time and when you
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can really improve an image with
sharpening and then we're in the process
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to apply all of those things now I love
this shot of Kelly so I want to try to
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make it work as best I possibly can I
don't think this is going to be a
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subject for a print but for use on the
internet I think that it would work so
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let's go ahead with a two-step
sharpening process and show you how we
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would improve this image
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gonna go up here to the Details tab on
the tools bar come down to sharpening a
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nurse three sliders here now the top
slider
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is how much sharpening is going to be
done
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the radius slider tells us how many
pixels adjacent to each other this
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effect is going to apply to so in this
case point eight that's the defaults
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saying I'm gonna go ahead and change the
store on because I think that actually
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works better now
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a hundred and eighty on one pixel with a
threshold and one that's a weird
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combination of sharpening settings at
least for this image now
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threshold is little bit more difficult
to quantify and explain the drop down
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explanation on the slider says
sharpening determines the lower
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threshold or no sharpening his before my
doesn't tell you anything
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threshold means how many pixels out from
a given brightness level does the effect
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of sharpening want to apply itself and
again you can get a greater
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understanding of these technical issues
of sharpening when you look at Chris or
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wigs course in lynda.com but we're gonna
leave the threshold alone because one is
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pretty good but on this image
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keep in mind this is a high-resolution
very large image and we need a lot of
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sharpening in other words the settings
need to be higher on this portion of the
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image that it does when you're finished
with the JPEG so I'm gonna change the
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radius actually 23 and we don't see very
much a change it again before now the
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reasons read right there is because the
program is telling you that's a very
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high member and you do be careful when
you're doing it so it's just kind of a
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warning but I don't care what I want to
do so again enter the figure manually or
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we can use the slider to do the radius
and then the amount watch what happens
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when I really crank this amount now the
images looking sharper on the computer
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screen but when you print this is gonna
look bad so I would say go to radio 2 in
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the amount would be normally not more
than 200 100 to 200 as we're gonna be
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almost images on this one that severely
out
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not afraid to come up to like 430
shoulders worn out when your threshold
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is one or two that eliminates sharpening
the noise if your threshold is zero
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point zero you going to sharpen the
image but you're also going to sharpen
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the noise which is what you don't want
to do it so let's go into a hundred
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percent magnification on this and look
at her eyes that we can see better what
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we're doing so if we go all the way back
to nothing
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this is how the image looks through
gonna go to a radius of to watch what
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happens when we slide this amount if we
go all the way here that's degrading the
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image thing you have to do is kinda
decide for yourself and against all this
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is subjective decide for yourself where
the image looks best and go from there
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now you're not looking for perfection at
this point this is the first of a two
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stage process and sharpening this image
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normally the rule of thumb is you never
sharpened until you get to the very last
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step in your process meaning you've
resized a new crop the image it's ready
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to go on the internet the last thing you
do before you send it on the internet is
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to sharpen the image so we're going to
sharpen it once here and let's go back
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to full view and that is a definite
improvement then when we resize the
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image for the internet we're going to
sharpen it again and I think at that
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point if you do it very very carefully
you'll see that you'll end up with a
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very usable image for the internet again
you're not going to print this very easy
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to use for the internet so sharpening in
capture one should be viewed as the
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beginning of a two-step process actually
sharpening isn't done at the high
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resolution to earth level it's always
done as the finished product now I
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strongly believe that you don't sharpen
your image until the very very in you
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never sharpened high resolution image
and then resize it up and then again in
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most cases where you have a properly
focused image you gonna do nothing but
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destroy the image and you never sharpen
an image that you're going to print
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again are you gonna do is destroy the
image trust me this is the voice of
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experience speaking the best frame of
mind again anytime you approach this
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sharpening is less is more to keep that
in mind you'll never do damage to your
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image so although sharpening is not one
of the primary functions its you want to
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use within capture one it can help you
recover a marginal image very quickly