CustomerGH4
Well-known member
Anybody know if HDR is possible with this camera like it is in Magic Lantern hack for Canon I believe?
https://www.youtube.com/watch?v=fjtGenTSfX8
https://www.youtube.com/watch?v=fjtGenTSfX8
GH4 Any way to get HDR video from gh4?
- Thread starter CustomerGH4
- Start date
Cosimo Bullo
Veteran
Some have been using idymanic with some success, I've heard.
CustomerGH4
Well-known member
Well, I need it for creative purposes. Our skies here are gray and dull. With the dynamic range the HDR method provides Im sure I could give more life for the nature scenes.
can you cut in a better looking sky? "Movie Magic!" Don't be stuck with what you got, make it better. It is YOUR Sandbox 
Inspired by this thread, I just tried to HACK some HDR footage together in Sony Vegas.... I took a track with lots of darks and bights, made two tracks where I brightened the darks a lot in one, and brought down the highs in the other and setup up a good look on each, then tried to ChromaKey merge them. It wasn't pretty, and too embarassing to post here. hahahahaha! but COULD almost work in certain situations.
You can shoot some interesting HD movies in STILL MODE. but looking at these, I'd prefer to shoot 4k and create effects like this in post:
"IMPRESSIVE ART" filter: (kinda does HDR, but blows out highs at the same time)
"HDR" filter -- look at the tree change from dark to light
very dull grey day today
Inspired by this thread, I just tried to HACK some HDR footage together in Sony Vegas.... I took a track with lots of darks and bights, made two tracks where I brightened the darks a lot in one, and brought down the highs in the other and setup up a good look on each, then tried to ChromaKey merge them. It wasn't pretty, and too embarassing to post here. hahahahaha! but COULD almost work in certain situations.
You can shoot some interesting HD movies in STILL MODE. but looking at these, I'd prefer to shoot 4k and create effects like this in post:
"IMPRESSIVE ART" filter: (kinda does HDR, but blows out highs at the same time)
"HDR" filter -- look at the tree change from dark to light
very dull grey day today
Bern Caughey
Veteran
Judicious application of Graduated ND(s), & Attenuator, filters is the traditional method of controlling bright sections of a frame.
Haven't had too much use for Hard Edge Graduated ND(s) but Soft Edge Graduated ND(s) are often indespisanble & I'm a particular fan of Attenuator(s) as their is no edge, rather their density gently increases (blends) across the entire filter, a feature that can be helpful when panning.
http://www.bhphotovideo.com/c/searc...E_2|0&N=4256189536&srtclk=sort&Ntt=attenuator
stoneinapond
Veteran
Have you used these alongside variable NDs, or is the combination too much?
Bern Caughey
Veteran
I haven't.
This was pretty cool from back in the GH1 days...
http://vimeo.com/18038671
http://vimeo.com/18038671
CustomerGH4
Well-known member
Great! Now I know it is possible with the GHs,
So how I do it with gh4? Hacking is the only way?
So how I do it with gh4? Hacking is the only way?
Bern Caughey
Veteran
That's not an example of HDR, instead it's a result of heavy grading, similar to cranking up the Clarity in Photoshop/Lightroom.
Welp, I consider the system an HDR video a success, but my graphics tweaking skills a failure. Would take some skills, time, talent to dial it in well. I think NEAT VIDEO would help.
This does NOT rely on getting bracketed hi/lo ISOs like most HDR requires. Instead, the software processes the images into pseudo-looking HDR from single frames.
I believe shooting somewhat FLAT like CINE-D helps the effect.
1. install free LUMINANCE HDR http://qtpfsgui.sourceforge.net/
2. Export your video to a directory of single images - depends on your editing software
3. In LUMINANCE HDR, open NEW HDR IMAGE, and pull in a single frame to process. You will need to move EV slider a little to hit next
4. tweak image until it looks like a cool HDR - I used MONTIUK06, .3, 1.75, 10.2
* Step 4 is where the creative tweaking happens. There are ton of possibilites and ways to adjust your "HDR Look" in step 4. Take some time and try them all.
5. change RESULT SIZE: in my case, to full UDH 3840x2160
6. Click TONEMAP to create your HDR Image, and see if it looks like you want. Repeat step 4 until you have it looking like you want.
7. under TONE MAP SETTINGS, "Save" your parameters (for use in the batch conversion)
8. goto TOOLS > BATCH TONE MAP and select your INPUT FOLDER with your images
9. click + in the next box to add your TONE MAP SETTINGS you saved in step 7
10. pick output type and folder, hit start and WAIT A LONG WHILE!!!
11. Import back in to your NLE from single images, and color to taste.
I flattened my test with LEVELS 16-235, did WHITE BALANCE, added some contrast back in, lots of color saturation, and a slight vignette.
I am not saying it is good, I'm saying it is a START
This does NOT rely on getting bracketed hi/lo ISOs like most HDR requires. Instead, the software processes the images into pseudo-looking HDR from single frames.
I believe shooting somewhat FLAT like CINE-D helps the effect.
1. install free LUMINANCE HDR http://qtpfsgui.sourceforge.net/
2. Export your video to a directory of single images - depends on your editing software
3. In LUMINANCE HDR, open NEW HDR IMAGE, and pull in a single frame to process. You will need to move EV slider a little to hit next
4. tweak image until it looks like a cool HDR - I used MONTIUK06, .3, 1.75, 10.2
* Step 4 is where the creative tweaking happens. There are ton of possibilites and ways to adjust your "HDR Look" in step 4. Take some time and try them all.
5. change RESULT SIZE: in my case, to full UDH 3840x2160
6. Click TONEMAP to create your HDR Image, and see if it looks like you want. Repeat step 4 until you have it looking like you want.
7. under TONE MAP SETTINGS, "Save" your parameters (for use in the batch conversion)
8. goto TOOLS > BATCH TONE MAP and select your INPUT FOLDER with your images
9. click + in the next box to add your TONE MAP SETTINGS you saved in step 7
10. pick output type and folder, hit start and WAIT A LONG WHILE!!!
11. Import back in to your NLE from single images, and color to taste.
I flattened my test with LEVELS 16-235, did WHITE BALANCE, added some contrast back in, lots of color saturation, and a slight vignette.
I am not saying it is good, I'm saying it is a START
h-munster
Active member
You could do true HDR with two GH4s and a beam-spitting mirror. This example was made before ML's video HDR appeared (and well before ML's dual iso): http://vimeo.com/14821961
Here's an example of conspicuous "graded" HDR (or, more accurately, the tone-mapped "Dragan" effect applied to video): http://vimeo.com/18038671
Here's an example of conspicuous "graded" HDR (or, more accurately, the tone-mapped "Dragan" effect applied to video): http://vimeo.com/18038671
R Hudson
Well-known member
I would seriously doubt that Panasonic would do this. However, a hack may/may not enable this functionality. I would think that the hardware could easily handle the task in 1080 given that it handles internal 4K. It would definitely be interesting. One very practical arena for HDR is for interiors like when doing a real estate walkthrough. I've seen some samples that have worked tremendously well with Canon via ML.