Download the Video!
Download the companion file! (…if there is one…. 
)
This week I start with a short introduction into autostereoscopic images, see two posts below. Then I cover the GEGL operation “c2g”, which converts acouloured image into a monochrome image with a lot of noise or other other effects. It’s a “try out” thing – up to now I have not found documentation. Perhaps one has to look into the source. Be warned – some parameters can kill the program.
Then Joseph tells us. how easy it is to make “HDR” images. It’s not as complicated as I feared. I’ll try it soon myself. The website Joseph pointed me to is here.
The TOC
00:28 Autostereoscopic images
02:10 Petersons image with GEGL c2g
03:30 c2g is used
06:30 Introducing Joseph
07:00 Introduction into HDR photography
09:00 QTPFSGui
10:00 Aligning the images
10:30 waiting….
11:20 Editing tools
12:10 Set the parameters
12:50 Save the image
13:00 Change the EV values
14:30 Tone mapping
15:40 saving in an LDR format (JPEG)
16:20 different effects
18:10 Web site with more info
This work is licensed under a
Creative Commons Attribution-Share Alike 2.0 Germany License.
Thank you Rolf for raining in all those guys’ parade, who intend to keep the color-to-grayscale filter top secret.
I haven’t found any useful documentation either. 
How can I only memorize the name of this interesting HDR-tool? I’m a little bit overfed by all these Photomatix tonemapping excesses but I like the opportunity to create realistic HDRs very much. Thank you Joseph for introducing this great free (how was is called???) gui! The given link reduces danger of spending a complete weekend with exploring all possible settings.
“How can I only memorize the name of this interesting HDR-tool?”
Simply by writing it often enough. I have posted so many questions in forums – since either I am too silly to use it or it is not intuitive enough. Now I can recall the program’s name during my sleep
After seeing this video I can only double this: The tone mapped results were either not realistic (I am a little bit bored by those too obvious HDR images) or they are realistic but don’t have a high range of values (the sky was too bright, the foreground too dark). Those results are easily doable by shooting a single RAW file and play with the curves…
So what I want to say: QTPFSGUI still needs a good and intuitive tone-mapping algorithm.
I should look into the link Rolf mentioned in the end. Maybe I’ll find something there…
Rolf thank you for the great video and thanks Joseph for the great HDR tutorial.
I’m having some problems with GEGL and was hoping if some one can help me.
When I select GEGL operation “c2g” or any other operation, it doesn’t show operation settings in GEGL window.
I have uploaded an image if some one is interested in seeing the problem:
http://s544.photobucket.com/albums/hh360/Nikolicaa/?action=view¤t=GEGLnotshowingoperationsettings.jpg
Miro can’t find 084, it seems to think that 083 (grain) is the latest. Any idea why?
Episode 84 is not showing up on iTunes. 83 is the most recent episode.
Google has acquired Feedburner and is playing, ehhh changing the configuration. I hope it works out – otherwise I will have to make the feed on our server. It’s quite a load on traffic and a pain to get it right.
@Nicola: Absolutely no clue. Perhaps something missing from the install.
here is a gimp plugin for some minor hdr shots
alignment is biggest headache with this script
http://tir.astro.utoledo.edu/jdsmith/exposure_blend.php
someone needs to make a plugin for gimp to use
hugin alignment functions….
@ Bret: I’m currently working on an auto-alignment script. Could take a longer time to deal with it. Look at episode 46! Rolf describes how images can easily be aligned manually.
@ Bert: I’ll look foward to your script
I’m aware of ways to do alignment manually but its time consuming
and I’m lazy, bad combination
I can deal with it but alot of quick hdrs I do are nothing more
than a snapshot so I would rather not waste much more time
then it takes to load the images into gimp
@Nikola:
Hi Nikola,
I do observe the same with the new version of gimp. What version are you using?
The options do not show in gimp 2.6.4 (on an intel mac), but the conversion is carried out (i assume with default settings). Maybe you should try gimp 2.6.3 – at least i can see and set the parameters using my “old” gimp. Maybe something got lost during the update (at least in precompiled versions)
@Peterson:
Hi!
I am using the newest one(2.6.4 win 32).I did try using GEGL on earlier versions and it didn’t work.Other than that GIMP works fine.
The operations are as in your case carried out the same way.
I really don’t know what’s is bugging it!?
Hi!
After uninstalling and cleaning the registry I finally got GEGL working on v2.6.3 of the GIMP and only on that version.
Cheers from Croatia!
FWIW: I filed a bug for this and response was that something got left out when updating to a new version of GEGL. Options settings available now in SVN and GIMP 2.6.5 whenever it gets released.
O.k. That’s good news.
That means there’s a probability will be seeing it by the end of this week.
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