Frage von Blackeagle123:
Hey,
I did a bit about HDRI read. So far I know only that the recordings are, where the contrast is at least 1:10000.
To produce such images, you need pictures with different exposures. But how does it then next,
how to create HDR Picture? What software you need? Does synonymous with Photoshop or freeware?
Many greetings,
Constantin
Antwort von Axel:
You've apparently already at Wikipedia geguckt, where is that since it is Photoshop CS2. As the sample pictures on the page show the resulting images are very beautiful, but surreal synonymous. How hand stitches. Use just the Photoshop Help.
Antwort von Blackeagle123:
Hey,
Thank you. Have unfortunately not yet a Photoshop CS2. But I have a trial version of Photo Pro Matrix downloaded.
Let's suppose I have a slightly underexposed picture photographed. It is easier to underexposed digital bodies visible, as overexposed. So I digitally changing the brightness of the image. Make the picture so bright that there is a normal value, then digitally even brighter that it is overexposed.
Is it possible in this way, a digitally created image of HDR-get, or is it significantly worse quality?
What would you advise me how I adjust the exposure times should be? (Which intervals)
Many greetings,
Constantin
Antwort von Axel:
Let's suppose I have a slightly underexposed picture photographed. It is easier to underexposed digital bodies visible, as overexposed. So I digitally changing the brightness of the image. Make the picture so bright that there is a normal value, then digitally even brighter that it is overexposed. It would be very nice if the contrast range of a digital (or analog synonymous) Image only for an average exposure would not see, but nonetheless the information in the description of the individual pixels would be repealed. That would namely, the technique could be readily transferred to video (as with stills or motion control is still with restrictions, but with exposure bracketing).
Sadly lacking in the underexposed Picture mids and lows, a normal picture exposed to extreme depths and heights, and one overexposed Picture the mids and highs. An exposure series, there would have the logic of her at least three shots - perforce Stilleben - exist. A Tonwertspreizung with underexposure leads only to a brighter picture, not HDR.
Somewhere there were times the idea of an HD video Resolutionvon in favor of HDR Resolutionzu sacrifice. For CMOS chips theoretically each pixel is individually defined, so why not the Resolutiondritteln neighboring chips and an exposure series can make?
The answer is that it (despite the advertising of plasma TVs with contrast 1:10000 scale, the spread is only one) had no playback device, which represents the dynamics synonymous. What perhaps feasible by Compression again, well, compressed.
Antwort von Aljoscha.Niko:
Hi!
when I still in 3ds Max autos've modeled, I needed many synonymous HDRI's. However panoramas, ie 360 ° views. I have my own HDRI's with my previous 350d shot, but it is broken. Here is a wonderful tutorial of a true professional in design and photo:
http://www.cg-cars.com/forum/showpost.php?p=33955&postcount=28
it is in English, but the next is not so tragic, I think.
Antwort von roller247:
@ Blackeagle123
You have but you downloaded Photomatix. There is a beautiful Instructions here.
Set your camera on a tripod and on A (perture) = Fixed Aperture. If available do you BKT = batch image recording, then depending on the camera 3 or 5 images shot. It changes the camera auto exposure gradually with typically 1 or 2 EV. If the camera has no BKT EV or smaller than plus or minus two, you have the Picture of Picture of manual settings. For a full HDR Picture, you need 3 images, one each with 0 EV, +2 EV and -2 EV. If you is not what A, BKT and EV, it is with the safety instructions in the Camera.
Lad of the three images into Photomatix and follow the instructions-Photomatix.
Photoshop is synonymous, but is significantly complicated. Photomatix is currently the best HDR program s.Markt.
Antwort von Blackeagle123:
Hey,
the extent that I understood everything. The program is very simple, the color correction synonymous.
But how big should I use the exposure intervals s.Stillimage choose?
What exactly is meant by 1 eV?
Many greetings,
Constantin
Antwort von wasy2:
EV = Exposure Value = Exposure value
Example:
The Picture is for example Aperture 5,6, Exposure 1 / 60 sec good and true.
Then is -1 EV Aperture 5.6 and 1 / s +1 EV and Aperture 5.6 and 1 / 120 sec
1 eV corresponds to a doubling (-) or one half (+) the exposure time at the same aperture. Therefore the Camera to A (Aperture) are, therefore, the fixed aperture (fixed).
So now here and show a decent HDR-Picture :-)
Antwort von Blackeagle123:
So, you wanted to have a nice HDRI, please:
zum Bild So in the worst times, the digital SLR, my uncle now. I am right then HDRI photographs. Currently I'm just s.rumprobieren with my digital camera.
Is there a program / plugin that works similarly in videos?
Example: One slightly underexposed films and the program continues to be dark much lighter car bodies, etc. (fully digital!)
Many greetings,
Constantin
Antwort von Blackeagle123:
Picture this, you can retrieve (small):
http://upload.wikimedia.org/wikipedia/commons/2/22/New_York_City_at_night_HDR.jpg
Antwort von Joyo:
Dear Constantin
Such a program as you describe it, there are of course not.
You should maybe a little more with the operation of the HDR-Progz or the idea behind this deal then you will understand why the only way and no other way. And certainly not with moving images.
For the three for an HDR-Picture required 0, -2 and +2 EV Photos need not synonymous reflex, which can be with most digital pocket Knipsen easily make.
With software like with many other things: not the one who can click on the buttons is the king, but the one who understands what happens after the click :-)
Antwort von Blackeagle123:
Hello,
I have very well understood how the technology that lies behind HDRI works. Anyone who mitliest here knows the synonymous, so I must now synonymous not explain again. (see Wikipedia)
To my theory for movies a bit more detail: Theoretically, it is easier for a picture so underexposed to grow something that you recognize. A Picture überbeichtetes saving is virtually impossible (white is now white)!
So I can shut synonymous slightly underexposed image record that the bodies which under normal circumstances would be overexposed, even normally are exposed!
Then I
DIGITAL s.Computer elucidate the complete picture on several occasions, most expensive, good colors to it to recognize. So long, until eventually some places are totally overexposed, but others still good to see. (Result of course not the same as when you record with different exposures, the limits you realize when you
stark contrast due to exposures of 1''and at the same time, 1 / 60 has)
Then I invite all digitally created images in the program. Synonymous comes out "a kind of" HDR image, which I then export as a tif, which is a TV can display. The result does not look bad in pictures, where the contrast range is not too extreme. 1:10000 creates so anyway.
That I do with all the images in my film, so 1000000th .. times ;-)
Then I import into Premiere just my frame sequence.
Because I place no later than s.dieser notice that each picture is different, because the contrast times here or there is not quite right, everything looks silly little from.
So again the question of whether it is a program that I am "a kind of" HDR-film digitally create it? Many greetings,
Constantin
PS: I Fotographieren longer synonymous and know that I do not need Spiegelrefles. So I try now synonymous with my small digital camera 'around. But would like s.Ende artistic photographs in high resolution so that I would be synonymous something can begin!
Antwort von Joyo:
So again the question of whether it is a program that I am "a kind of" HDR-film digitally create it? No, there is at best a program that you "like a" film can create. This is called Thumb Cinema (see Wikipedia). :-)
Antwort von Axel:
exposures at the same time can make. Inventor before!
Antwort von Joyo:
Oh, such a program, there is apparently yet http://forum.slashcam.de/real-feel-cinema-tool-macht-aus-schlechten-aufnahmen-kinoahnliche-bilder-vt50830.html
Antwort von Joyo:
It should be a camera built to at least two exposures at the same time can make. Inventor before! A stereo camera? ;-)
Antwort von Bernd E.:
... apparently .... Not apparently, but apparently ;-) Read the linked thread times through, and you'll quickly realize that the whole thing not be taken seriously.
Gruß Bernd E.
Antwort von levis0208:
... apparently ....
Not apparently, but apparently ;-) Read the linked thread times through, and you'll quickly realize that the whole thing not be taken seriously.
Gruß Bernd E. I've not only read but then my part, synonymous to the "exposure" contributed :-)
But there are still lots of other software believers "who believe that we can nullify the physics.
The stop is just in its own "brain movies" ala "Real Feel Cinema"
Antwort von Blackeagle123:
Two exposures are still nearly synonymous. You can digitally superimposed images set. Even if a 3 cm camera was right next than the other ...
Stereo cameras are designed to rotate 3d movies, right? Accordingly, the distance synonymous standardized and you can probably reduce it even more!
HDRI Special cameras are probably not. Well, I'll just an invention! ^ ^ At the same time the patent attorney to call:)
Liebe Grüße,
Constantin
PS: I do not want "movie pictures" with minimal effort and Cheap Camera! I want to achieve an artistic effect, which is called HDR images ;-)
Antwort von Axel:
Two exposures are still nearly synonymous. You can digitally superimposed images set. Even if a 3 cm camera was right next than the other ...
Stereo cameras are designed to rotate 3d movies, right? Accordingly, the distance synonymous standardized and you can probably reduce it even more! Man, Constantin, the werd'ich try. Two identical parallel Cams. Thus both the exact same record, one would have to build a mirror intent. Sounds crazy, but exciting.
50 frames, intraframekomprimiert, HD, and HDR with mocking cheap 200 GB memory cards. Except for the last two points, there's a yes. We must dream times.
Antwort von levis0208:
I want to achieve an artistic effect, which is called HDR images ;-) Nothing else I've expected. Finally, Art of Can.
Antwort von Blackeagle123:
Hey,
na, then we put it out together and catch s.zu Save ;-)
But I would be really interested to know how this video looks. One must indeed feel like a computer game, or 3D film, just in incredible Resolutionund ... Reality!
That I imagine it can not afford, it is clear to me synonymous, but the irony was (I hope) synonymous rauszuhören! ;-)
Liebe Grüße,
Constanitn
Antwort von Akira:
Hey,
HDR in the movie sounds interesting.
Generally, one in the photo area so three differently exposed images, or alternatively a Raw. If you get the frames exportierst You probably (as you already said) a Tif, therefore, would be the raw thing died. By Tif, you can still simulate HDR's. It remains uncertain whether imitation is worth something, but there are a few pages about something, and even download free Photoshop actions. Would read:
Single-> Batch processing with the Actions-> movie as a download> voilà!
The problem with the different look could perhaps directly from the Create Action-counter (Bildton correct)?
Jetzt mal ne totally stupid question:
Would it not be a "normal" exposed clip possible loss abzufilmen, once each in under-and overexposed in?
And if I now continue spinne: these three clips, but as an individual would not for the HDR-production requirements, so what then? With transparencies, masks and filters to fight each other on all three clips manière made to look like?
Stay tuned.
Liebe Grüße
Akira
