superimpose image
Brian Cluff
brian at snaptek.com
Mon Jan 11 11:17:18 MST 2016
Oops, I guess I should have read the whole thread before replying. I
could have saved myself a bunch of typing.
Brian Cluff
On 01/11/2016 10:14 AM, Stephen Partington wrote:
> Cameras are usually good for 50000-300000 actuations if not more (Ie
> mirrorless cameras)
>
> But the issue with using software to do the over/under expose of the
> image you loose the on site expanded dynamic range. Newer cameras can
> have some crazy dynamic range, but if you have an older camera or one
> that just doesn't have it Multiple exposures is about the only way to
> really get the data you need. and ideally you are doing this to expand
> you baseline, and extremes parts of the exposure.
>
> Doing this in software from the same image, even is you do have a raw
> image to work with you are still imited to +/- 5-7Ev in most cases. I
> think sony can push as far as 11 to 14 but i would need to check my
> sources.
>
> With set of images for HDR you move your EV to + and - 3-5 that then
> gives you a huge dynamic range to get details out of the brights and
> shadows.
>
> On Mon, Jan 11, 2016 at 9:48 AM, Michael Havens <bmike1 at gmail.com
> <mailto:bmike1 at gmail.com>> 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 <brian at snaptek.com
> <mailto:brian at snaptek.com>> 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
> <brian at snaptek.com <mailto:brian at snaptek.com>
> <mailto:brian at snaptek.com <mailto:brian at snaptek.com>>> 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?
>
> --
> :-)~MIKE~(-:
>
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