Yeah, your right... that's what I meant, and what I do.... Brain fart!
Brian Cluff
On 01/11/2016 11:15 AM, Stephen Partington wrote:
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.
On Mon, Jan 11, 2016 at 11:14 AM, Brian Cluff <[email protected]
<mailto:[email protected]>> wrote:
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.
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.
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.
Brian Cluff
On 01/11/2016 09:48 AM, Michael Havens wrote:
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!
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?
On Thu, Jan 7, 2016 at 9:58 PM, Brian Cluff <[email protected]
<mailto:[email protected]>> wrote:
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.
Brian Cluff
On 01/07/2016 05:51 PM, Michael Havens wrote:
thank you so much man. I really appreciate it. I
certaainly will devote
10% of my available brain to these videos tomorrow. Do
you know of any
videos or text teaching how to do exposure blending with
gimp2.8? all
the tuts I've been finding are incomplete or are how to
do it with 2.2!
On Thu, Jan 7, 2016 at 7:37 PM, Brian Cluff
<[email protected] <mailto:[email protected]>
<mailto:[email protected] <mailto:[email protected]>>> wrote:
There's a ton of ways to do what you want. The
biggest thing you
will have to worry about is lighting. For instance,
if you are
putting something that was lit from the left into a
scene that was
lit from the right, then there is little you can do.
No matter how
carefully you add it to your scene your brain will
always tell you
there is something wrong with the picture.
I tend to use a couple of different techniques to put
one image into
another.
If the background is a relatively solid color, I'll
use a technique
similar to this example for cutting out images while
preserving fine
details (hair in this example)... hint, you don't use
ANY of the
selection tools, or copy and past.
https://www.youtube.com/watch?v=AnbxtMCHKV0
or
https://www.youtube.com/watch?v=Jle81ofRLok
or
https://www.youtube.com/watch?v=quAChCnK_Dk
The other way I like combine image is brushing out
the background
using layer masks as demonstrated in this video with
the leg:
https://www.youtube.com/watch?v=hHJAJziWDs0
I usually use a combination of the 2 techniques since
you rarely get
perfect results with either method.
All these methods ultimately use layer masks, which
is a much better
way to combine photos than cutting and pasting since
you can tweak
what is transparent or not back and both without
having to commit to
a certain part of an image like you do with cutting
and pasting.
Brian Cluff
On 01/07/2016 02:58 PM, Michael Havens wrote:
I found a way to super impose an image but it
looks tacky.
The method I learned was to open both files and
then to select the
image you want to put on the other with
fuzzytool. I found that
didn't work so I used the path tool. Well I cut
the image out but
the paste doesn't look good. It is out of scale.
For the purposes
I need WHat ithe best way to cut a house out and
put it on a blue sky?
--
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A mouse trap, placed on top of your alarm clock, will prevent you from
rolling over and going back to sleep after you hit the snooze button.
Stephen
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