Root Raw camera

[EarlyMon]

BTW - even though Gimp doesn't handle 16-bit layers doesn't mean that's all there is.

Added -T to get 24 MB TIFF, opened in Mac Preview, made the same exposure, contrast, saturation adjustments, saved without compression.

LOL - you can see the difference.

https://drive.google.com/file/d/0B2MPU5MqABTXVmR1VzFnZ3hlYjg/edit?usp=sharing

 

[EarlyMon]

Wow.

Hi EarlyMon,

I was just working with your raw file. GIMP is assigning the built-in sRGB profile because there is no embedded ICC profile. Your dcraw command line told dcraw to output a linear gamma image ("-4").

Essentially your GIMP curve is counteracting the effect of assigning a regular sRGB profile to a linear gamma image. Your raw file really isn't underexposed at all.

The regular sRGB profile has a more or less perceptually uniform TRC. Your dcraw output assumes a linear gamma TRC.

If the idea of an ICC profile TRC (tone reproduction curve) seems odd, given your background you might find this article the quickest way to assimilate a lot of relevant information, and there's a section on TRCs:

Completely Painless Programmer's Guide to XYZ, RGB, ICC, xyY, and TRCs
http://ninedegreesbelow.com/photography/xyz-rgb.html

I attached a linear gamma sRGB profile for you to experiment with.

Alas 8 bits isn't enough to work with linear gamma images. So either compile GIMP 2.9 from git (easy to do, and Partha maintains a build for Windows and also I think Mac, I can send you the link if you are interested). Or else remove the "-4" from your command line. Or experiment anyway, but you'll see bands in the shadows from posterization.
...

And it goes a long way from there, including not needing -m 40 because there's not a lot of noise in the images to begin with.

Ok - back to the drawing board.

 

[Granite1]

Yeah, that blew my mind!

I'm reading the color article now.

We need to remove -4 until we see Gimp3, thats unless you compile a different version? Don't really know what that was about there.

I'll try and play around today if I can find time. Yesterday was a wash for me.

 

[EarlyMon]

I mentioned that GIMP could only process 8-bit layers, and she responded that I could do better.

I can't believe that I got so lucky on our two pictures but it really was luck.

 

[Granite1]

I'm checking out RawTherapee that defcomg posted up. Seems to be more options than Gimp, still don't know how to use it.

http://rawtherapee.com/blog/rawtherapee-4.1-is-out

I'll read and play around, maybe try to get a new dcraw output edited in that one and see where it ends up.

 

[Granite1]

I did a new dcraw output using these parameters:

dcraw -v -4 -q 3 -m 40 -T -a -r 2.132583 1 1.480864 1 IMAG0003.draw

Here's the pooch photo edited with RawTherapee, 16bit .tiff output.



Here's the full file: https://drive.google.com/file/d/0B1xiIlbIPKFDUm8xU19CajIwSFU/edit?usp=sharing

Still need to read and mess with all of the options (there are a lot of editing parameters!), and learn what I'm doing instead of just moving sliders until it "Looks Good".

Still a little on the dark side, need to mess with the dcraw output to get a more exposed image.

 

[EarlyMon]

Try dropping the -4 the difference is pretty dramatic.

 

[Granite1]

Oh, hell yes!

I was leaving that in there for editing in RawTherapee, but this is much better.

So the -4 assigns a 16bit linear curve, without it we're reduced down to 8 bit. Why does it make the image so dark though? Seems I need to do some more reading, because I'm not understanding entirely.

 

[EarlyMon]

Oh, hell yes!

I was leaving that in there for editing in RawTherapee, but this is much better.

So the -4 assigns a 16bit linear curve, without it we're reduced down to 8 bit. Why does it make the image so dark though? Seems I need to do some more reading, because I'm not understanding entirely.

-4 outputs linear gamma output and 8 bits is not enough to deal with that, and besides, it conflicts with the sRGB model that we're using for post-processing, according to Elle.

Furthermore, she went on to say, when we remove that, we see that the images are not underexposed at all.

 

[EarlyMon]

-6 gives 16-bit layers, Elle said that -m 40 seemed unnecessary given that the images didn't look noisy - I couldn't resist, so I went for 10 iterations on the -m.

Note that -4 = -6 (16 bits) -W (suppress lightening) -g 1 1 (linear gamma)

And -q 3 (AHD interpolation) is the default - which I had stuck in my head wasn't, so just leave that off.

So, I did -

dcraw -v -m 10 -r 2.132583 1 1.480864 1 -6 -T IMAG0003-puppy.draw

Result, with no changes or edits -

Actual tiff - https://drive.google.com/file/d/0B2MPU5MqABTXbWNWdXBJcl9rQmM/edit?usp=sharing

And I believe that you'll find the above is the same as -

dcraw -v -m 10 -r 2.132583 1 1.480864 1 -6 -T -H 2 IMAG0003-puppy.draw

Where -H is the highlight modifier.

 

[EarlyMon]

Here's a recap of the heavily processed photo from post 50, followed by the same using -

dcraw -v -m 10 -r 2.132583 1 1.480864 1 -6 -T -H 2 IMAG0007.draw

I think the additional sky detail makes it pretty obvious that Elle was only 100% right (thank you Elle!).

Here's the full tiff of the second one, no other processing done.

https://drive.google.com/file/d/0B2MPU5MqABTXemRnWHJQdURReWM/edit?usp=sharing

Note - the building was shot with +1 EV because I'd thought from last week's trials it would need that. So, that's why it's a bit overexposed.

 

[EarlyMon]

And the requisite goofing around to remove my +1 EV and just dork with it until it had pleasing contrast and an adjusted red -

 

[Lordvincent 90]

Is there a 32-bit version of dcraw for windows? I'm trying my hand at this with my One SV (using the one s camera) I end up with a .draw file but I can't attempt to decode it since the computer I'm borrowing is old and 32-bit

PS - sorry for hijacking your thread I tried searching the thread(s) but all of my key words aren't long enough

 

[EarlyMon]

Nonsense from last week, followed by the new parameters (and no other editing).

And that ends my playing around with that building (and the crowd goes wild! lol).

Next time - more interesting subjects and I'm going to try my hand at my own color adjustments.

I'll be shooting some white stuff for reference, and just passing through dcraw with the -a param and seeing what r numbers it turns that into.

^Pro tip from Elle, fast way to get zero'd in just a bit until buying an IT8 test card.

 

[EarlyMon]

Is there a 32-bit version of dcraw for windows? I'm trying my hand at this with my One SV (using the one s camera) I end up with a .draw file but I can't attempt to decode it since the computer I'm borrowing is old and 32-bit

PS - sorry for hijacking your thread I tried searching the thread(s) but all of my key words aren't long enough

Do you have access to a compiler on that? I might be able to help you build one if so.

And if not - if you want to lay your draws on me, I'll give them a go for you.

Other option - got a fair sized spare USB stick handy?

How are you with Ubuntu?

The other option is to boot 32-bit Ubuntu from a live USB and go from there. It will be some work and a bit more if you're new to Linux.

PS - no worries on the hijack.

 

[Granite1]

I was studying the dcraw commands this after noon when I got called away. Can you believe they want me to actually work during work hours! Incredulous!

I'll give these parameters a go with the slew of other .draw files I've collected. I'm sure everyone is also tired of seeing the same photo of my pretty puppy.

We could quite possibly tweak the parameters in dcraw to output final quality images, no post editing. Dcraw is actually a more amazing application than I originally perceived.

Mind blown again!

 

[Lordvincent 90]

Yeah, I'm still fairly noobish when it comes to Linux but I am a quick learner.
-no compiler
-PC only has 1gb of ram and a single core 1.6ghz processor ( )
-they have 90+% of the HDD full so dual boot isn't really an option
-I killed my only USB drive recently (by some unknown means)

Soooo... Basically I'm screwed unless I can find a 32-bit version (or finally get the $$ to get a new HDD for my computer)

Here is the link to the .draw

https://db.tt/K9oe2Ebq

Its nothing spectacular. I just wanted to see if it would work for my device. I took the "exact" same pic with my stock camera so I would be able too compare the results

Thanks for the offer to help. hopefully this yields positive results. I would love to be able to use this on my phone

 

[EarlyMon]

Yeah, I'm still fairly noobish when it comes to Linux but I am a quick learner.
-no compiler
-PC only has 1gb of ram and a single core 1.6ghz processor ( )
-they have 90+% of the HDD full so dual boot isn't really an option
-I killed my only USB drive recently (by some unknown means)

Soooo... Basically I'm screwed unless I can find a 32-bit version (or finally get the $$ to get a new HDD for my computer)

Here is the link to the .draw

https://db.tt/K9oe2Ebq

Its nothing spectacular. I just wanted to see if it would work for my device. I took the "exact" same pic with my stock camera so I would be able too compare the results

Thanks for the offer to help. hopefully this yields positive results. I would love to be able to use this on my phone

I need to rebuild my dcraw, your camera is unknown to my copy.

Did you use FreeDCam? Other?

If other, do you have a link to it, or did you mod the camera yourself?

I don't have access to an SV anymore - what's the spec for the image size?

 

[EarlyMon]

We could quite possibly tweak the parameters in dcraw to output final quality images, no post editing.

That's my target exactly.

And I think that last one I did of your puppy pretty much nailed it (I for one am not getting sick of him lol).

Try what I did on your other pics.

Did you synthesize your own -r values?

I'm thinking to do that for mine.

Once we have those down - or figure the best way for each individual to get there - we ought to be off to the races.

 

[Lordvincent 90]

I used the onesraw.apk (the one for the one s)
Link:
http://www.mediafire.com/download/2jv2b6vtf1y3q49/OneSRaw.apk

The camera is a 5 MP, 2592 х 1944 pixels, autofocus

Spoiler

I just figured since i have the One SV, I would give this version a go. I could try camera2 if you'd like

 

[EarlyMon]

Hey Granite - want to see something dramatic with your puppy?

dcraw -v -m 10 -r 2.132583 1 1.480864 1 -6 -T -H 2 -g 2.7 2.5

 

[EarlyMon]

I used the onesraw.apk (the one for the one s)
Link:
OneSRaw

The camera is a 5 MP, 2592 х 1944 pixels, autofocus

Spoiler

I just figured since i have the One SV, I would give this version a go. I could try camera2 if you'd like

Ah - yeah, defcomg has added various cameras into dcraw but only publishes the original source and the compiled Windows.

No worries - I had to fix it for mine, I've shot him a note to get me what I need to fix it for yours.

 

[Granite1]

Hey Granite - want to see something dramatic with your puppy?

dcraw -v -m 10 -r 2.132583 1 1.480864 1 -6 -T -H 2 -g 2.7 2.5

First thing tomorrow morning, I'll give these parameters a go. I left my laptop at work, which happens to have my environment for photo editing.

What I really need to do is get both computers up and running, then I'll be cooking with butter!

 

[EarlyMon]

Ah - yeah, defcomg has added various cameras into dcraw but only publishes the original source and the compiled Windows.

No worries - I had to fix it for mine, I've shot him a note to get me what I need to fix it for yours.

Ok, he got me what I asked for - but - that's not really compatible with your camera, I guess.

Taking a (pretty good) guess based on your spec and file sent, I built the first line - but his supports the second line -

{  6746112,2592,1944, 0, 0, 0, 0, 0,0x61,0,0,"HTC","OneSV" },
{ 10782464,3282,2448, 0, 0, 0, 0, 0,0x61,0,0,"HTC","OneS" },

The first 3 numbers are - raw file size, and x*y size.

So - please see if the other camera will work for you.

 

[EarlyMon]

I think you were off, res = 2592 * 1552 yes?