<div dir="ltr"><div class="gmail_default" style="font-family:trebuchet ms,sans-serif">Careful about using multiple F-Stops. it can alter your depth of field and give you really weird hazing. it is usually better to alter shutter speed if anything. so the depth of feild and ISO noise is the same.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jan 11, 2016 at 11:14 AM, Brian Cluff <span dir="ltr"><<a 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">
<div text="#000000" bgcolor="#FFFFFF">
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.<span class="HOEnZb"><font color="#888888"><br>
<br>
Brian Cluff</font></span><div><div class="h5"><br>
<br>
<div>On 01/11/2016 09:48 AM, Michael Havens
wrote:<br>
</div>
<blockquote 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 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><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>
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 href="mailto:brian@snaptek.com" target="_blank"></a><a href="mailto:brian@snaptek.com" target="_blank">brian@snaptek.com</a><br>
</span>
<div>
<div>
<mailto:<a 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 href="https://www.youtube.com/watch?v=AnbxtMCHKV0" rel="noreferrer" target="_blank">https://www.youtube.com/watch?v=AnbxtMCHKV0</a><br>
or<br>
<a href="https://www.youtube.com/watch?v=Jle81ofRLok" rel="noreferrer" target="_blank">https://www.youtube.com/watch?v=Jle81ofRLok</a><br>
or<br>
<a 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 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>
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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