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While you can use software to fake it, it doesn't give you the same
quality as you would get from 3 separate images shot at different F
Stops.<br>
The biggest difference you will see when using a single image is
that the darker parts of your fake HDR image will be very
grainy/noisy and there will also be some noise that spills over to
the rest of the image.<br>
<br>
You can do a lot better if your single image is a RAW image with
it's higher bit-depth instead of it's JPEG equivalent, but even
then, without the longer exposure time that you would get from using
a larger F-stop the data simply isn't there is be able to expand for
HDR (really tonemaped) images.<br>
<br>
Brian Cluff<br>
<br>
<div class="moz-cite-prefix">On 01/11/2016 09:48 AM, Michael Havens
wrote:<br>
</div>
<blockquote
cite="mid:CAFRvunKOMLPWkRY6s3o=vKUqSYxOR0iQj_EnMX6MNB8S5Eo8uA@mail.gmail.com"
type="cite">
<div dir="ltr">I was wondering... would using software to
over/under expose an image be the same as taking 3 images which
have been physically altered? Less wear and tear on the camera
is good!
<div><br>
</div>
<div>Also, I was watching a tutorial on luminance hdr and in his
version the software had a bunch of variation of an hdr which
could be modified. My version doesn't seem to have that. Is
there a setting?</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Jan 7, 2016 at 9:58 PM, Brian
Cluff <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:brian@snaptek.com" target="_blank">brian@snaptek.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Use
LuminanceHDR for exposure blending. GIMP is waaaaaay too
much work to get just one way to blending the images.
Luminance on the other hard offers a tons of different
methods and then you can tweak the settings within each
method. It's all very easy and gives you much better
results.<br>
<br>
Brian Cluff<span class=""><br>
<br>
On 01/07/2016 05:51 PM, Michael Havens wrote:<br>
</span>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex"><span
class="">
thank you so much man. I really appreciate it. I
certaainly will devote<br>
10% of my available brain to these videos tomorrow. Do
you know of any<br>
videos or text teaching how to do exposure blending with
gimp2.8? all<br>
the tuts I've been finding are incomplete or are how to
do it with 2.2!<br>
<br>
On Thu, Jan 7, 2016 at 7:37 PM, Brian Cluff <<a
moz-do-not-send="true" href="mailto:brian@snaptek.com"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:brian@snaptek.com">brian@snaptek.com</a></a><br>
</span>
<div>
<div class="h5">
<mailto:<a moz-do-not-send="true"
href="mailto:brian@snaptek.com" target="_blank">brian@snaptek.com</a>>>
wrote:<br>
<br>
There's a ton of ways to do what you want. The
biggest thing you<br>
will have to worry about is lighting. For
instance, if you are<br>
putting something that was lit from the left into
a scene that was<br>
lit from the right, then there is little you can
do. No matter how<br>
carefully you add it to your scene your brain will
always tell you<br>
there is something wrong with the picture.<br>
<br>
I tend to use a couple of different techniques to
put one image into<br>
another.<br>
If the background is a relatively solid color,
I'll use a technique<br>
similar to this example for cutting out images
while preserving fine<br>
details (hair in this example)... hint, you don't
use ANY of the<br>
selection tools, or copy and past.<br>
<a moz-do-not-send="true"
href="https://www.youtube.com/watch?v=AnbxtMCHKV0"
rel="noreferrer" target="_blank">https://www.youtube.com/watch?v=AnbxtMCHKV0</a><br>
or<br>
<a moz-do-not-send="true"
href="https://www.youtube.com/watch?v=Jle81ofRLok"
rel="noreferrer" target="_blank">https://www.youtube.com/watch?v=Jle81ofRLok</a><br>
or<br>
<a moz-do-not-send="true"
href="https://www.youtube.com/watch?v=quAChCnK_Dk"
rel="noreferrer" target="_blank">https://www.youtube.com/watch?v=quAChCnK_Dk</a><br>
<br>
The other way I like combine image is brushing out
the background<br>
using layer masks as demonstrated in this video
with the leg:<br>
<a moz-do-not-send="true"
href="https://www.youtube.com/watch?v=hHJAJziWDs0"
rel="noreferrer" target="_blank">https://www.youtube.com/watch?v=hHJAJziWDs0</a><br>
<br>
I usually use a combination of the 2 techniques
since you rarely get<br>
perfect results with either method.<br>
<br>
All these methods ultimately use layer masks,
which is a much better<br>
way to combine photos than cutting and pasting
since you can tweak<br>
what is transparent or not back and both without
having to commit to<br>
a certain part of an image like you do with
cutting and pasting.<br>
<br>
Brian Cluff<br>
<br>
<br>
On 01/07/2016 02:58 PM, Michael Havens wrote:<br>
</div>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
<div class="h5">
I found a way to super impose an image but it
looks tacky.<br>
The method I learned was to open both files and
then to select the<br>
image you want to put on the other with
fuzzytool. I found that<br>
didn't work so I used the path tool. Well I cut
the image out but<br>
the paste doesn't look good. It is out of scale.
For the purposes<br>
I need WHat ithe best way to cut a house out and
put it on a blue sky?<br>
<br>
--<br>
:-)~MIKE~(-:<br>
<br>
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-- <br>
<div class="gmail_signature">
<div dir="ltr">
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<div><span style="font-size:12.8000001907349px">:-)~MIKE~(-:</span><br>
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