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DPChallenge Forums >> Tips, Tricks, and Q&A >> How to tone map 1 photo in PM
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04/04/2008 09:43:22 AM · #1
Is it possible, I THINK Bear showed me. I have tried several times to do this but can not. any suggestions?
04/04/2008 09:46:00 AM · #2
Yes - Open the RAW image in PM and then tonemap

Originally posted by JulietNN:

Is it possible, I THINK Bear showed me. I have tried several times to do this but can not. any suggestions?
04/04/2008 09:51:12 AM · #3
You see that is what I am talking about.

It was the simplist of things to do, but I had no idea how to do it.

The people from DPC, didnt mind that it was a simple question and right away within 1 min I got an answer that I could do straight away.

Thankyou, for not making me feel stupid when I ask these simple questions.

Especially thank you Bass, as you have pretty much always answered any question here that I have posted adn you are not bored with doing so.

04/04/2008 09:53:08 AM · #4
No worries - There are many many people that are always happy to help. No question is really stupid, especially when you are trying to learn. I just hope my response helped you out!

Originally posted by JulietNN:

You see that is what I am talking about.

It was the simplist of things to do, but I had no idea how to do it.

The people from DPC, didnt mind that it was a simple question and right away within 1 min I got an answer that I could do straight away.

Thankyou, for not making me feel stupid when I ask these simple questions.

Especially thank you Bass, as you have pretty much always answered any question here that I have posted adn you are not bored with doing so.
04/04/2008 10:00:25 AM · #5
It did, I went straight away to PM and did it.

I am just so impressed with people wanting to help others here. It is easy to say"oh for gawds sake nto again" when a simple question is asked. More experienced photographers step up to the plate and help those that don't know.

That is not as common as you may think it is, in real life or in cyber world.

So big pat on the backs to everyone !
04/04/2008 10:14:18 AM · #6
Originally posted by JulietNN:

It did, I went straight away to PM and did it.

I am just so impressed with people wanting to help others here. It is easy to say"oh for gawds sake nto again" when a simple question is asked. More experienced photographers step up to the plate and help those that don't know.

That is not as common as you may think it is, in real life or in cyber world.

So big pat on the backs to everyone !


how about posting your results as thanks ;)
04/04/2008 10:44:47 AM · #7
crap they are not that good LOL

when I have finished I shall and honour it to Bass lol, (lets pray it is a good one lol)
04/04/2008 11:13:58 PM · #8
PM?
04/04/2008 11:25:34 PM · #9
photomatix

adn the single exposures just arent coming out that well, come to that, the single exposures and doing diff stops arent coming out that well either. Just the 3 stop photos. Even at 16bit tiff, hmmmmm now i am stuck
06/11/2008 02:14:13 PM · #10
You don't suck.

You cannot do true HDR work w/ 1 exposure. Here is the visual example I read that really made sense.

Think of a slinky 10 feet long as the complete tonal range of the scene. You need to fit that slinky into a 6 foot long box which is your monitor display or print.

A regular single exposure clips the ends the slinky to fit in the box. (highlights/shadows). To capture the whole slinky you need multiple exposures.

Tone mapping compresses the entire slinky to fit the box w/o clipping it. YOu can do global compression which compresses the slinky evenly throughout or local compression which allows you to pick and choose which parts get compressed.

1 image HDR is just stretching the slinky to cover a tonal range that was never actually captured. You cannot get highlight detail from an area that was completely blown out and you cannot get shadow detail from an area that was completely black. The only way to get this info is from bracketed exposures. This is demonstrated by extreme amounts of noise or artifacts. Im guessing you are getting strange colors and tons of noise.

Some scenes can be tone mapped with good results as with some single image HDR. Usually it depends on teh scene you are shooting. For medium to low contrast scenes you can get nice results. The problems usually arise from high contrast scenes.

For great results on high contrast scenes you should bracket exposures. I like 3 shots 2EV apart or 5 shots 1EV apart.
06/11/2008 02:24:41 PM · #11
Originally posted by JulietNN:

You see that is what I am talking about.

It was the simplist of things to do, but I had no idea how to do it.


The next thing you do, if you are Bear, is take all the sliders and crank them all the way to the right...

(haha, just busting on you Robert... ;))
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