superimpose image
Stephen Partington
cryptworks at gmail.com
Mon Jan 11 11:21:25 MST 2016
We are human, therefore....
:-D
On Mon, Jan 11, 2016 at 11:18 AM, Brian Cluff <brian at snaptek.com> wrote:
> 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 <brian at snaptek.com> 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 < <brian at snaptek.com>
>> 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>> 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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>>>>
>>>>
>>>> --
>>>> :-)~MIKE~(-:
>>>>
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>>
>>
>> --
>> :-)~MIKE~(-:
>>
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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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--
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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