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Author Topic: Does anyone have a catch all filter to use as a start point?  (Read 14506 times)
Fred A
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« Reply #15 on: June 11, 2014, 01:44:18 PM »

Quote
So when you say "Another item is the NOISE.   Open the Editor Raw options, and move the NR slider to the right for your camera.
Then you wont have to deal with it with noise filters." that is only applicable if you have one of the cameras at the bottom of this page where there is quite a short Qimage Ultimate profile list.

Not so Tony,
That noise reduction in the Raw Options works on specific cameras, with no connection to the Camera profiles.
The settings for Noise Reduction and default setting for Sharpening are camera specific. That means that you can have different settings for different cameras, and Qimage will use the saved setting for the correct camera when it sees a Raw image from that camera.
The camera profile is for a corrected color space... if you don't have one, AdobeRGB is used.

The NR slider is adaptive. It adds more Noise filtering as it reads your ISO numbers being high.
If you find that a lot of your pictures call for high ISO and you find that you need more Noise reduction before you print, MOVE that slider in the Raw Option box to the right.
This will set the threshold for the Noise reduction to apply more sooner.
Experiment!
Move your NR slider all the way to the right, and then rebuild the thumbs for that folder.
Check the images,,,,   too soft? Back the slider off.

Just set it right, and then forget it.
Don't forget to rebuild the thumbs between experiments

Fred


« Last Edit: June 11, 2014, 01:45:54 PM by Fred A » Logged
tonygamble
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« Reply #16 on: June 11, 2014, 01:51:18 PM »

Thanks Fred,

I'll do some experimenting.

Quite a lot of new stuff to try. But all in the right direction.

By the way. That long list on that RAW page includes the DP1m and DP2m. The next time someone alters that page it would be worth removing them. Sadly QU does little more than turn them into underwater shots. An interesting effect but not all that kind on flesh tones Cry

Tony
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Terry-M
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« Reply #17 on: June 11, 2014, 05:16:24 PM »

Tony,
Quote
Then you wont have to deal with it with noise filters." that is only applicable if you have one of the cameras at the bottom of this page where there is quite a short Qimage Ultimate profile list.
That is not correct.  Roll Eyes
You can apply the raw NR settings whether you have a camera raw profile or not.
You can save your raw preferences for a particular camera, make sure a raw thumb is selected before you do and then QU will pick up the Exif name for that camera.
See screen shots attached.
Terry
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tonygamble
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« Reply #18 on: June 11, 2014, 05:46:57 PM »

Thanks Terry,

Glad I re-surfaced the thread. I hope it is as useful to others as it has been for me.

Tony
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tonygamble
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« Reply #19 on: June 12, 2014, 09:46:38 AM »

I have tried that NR slider on a sequence of higher ISO shots, 1600, 3200, 6400

None then two thirds.

I cannot see any difference in the converted Tifs of each pair.

Any clues please?

Tony
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Fred A
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« Reply #20 on: June 12, 2014, 09:51:29 AM »

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I have tried that NR slider on a sequence of higher ISO shots, 1600, 3200, 6400

None then two thirds.

I cannot see any difference in the converted Tifs of each pair.

Any clues please?

Did you use version 234? Did you rebuild the thumbs of the images you are looking at?

Send me the noisiest.

Fred
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tonygamble
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« Reply #21 on: June 12, 2014, 11:48:39 AM »

Thanks Fred,

Yes and Yes.

I am only using the RAW slider - not the tick boxes in the edit screen.

Files on their way.

Tony
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Fred A
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« Reply #22 on: June 12, 2014, 04:40:03 PM »

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I am only using the RAW slider - not the tick boxes in the edit screen.

Sorry I took so long but Thursday is lunch with the photogs day.

Ok, your images are just plain silly to use those as examples of noise!!

   ISO 25,600 to shoot something that is equivalent to taking a picture of the sky at 25,600 ISO.
You are intentionally creating noise by shooting a gray... plain gray... like shooting a blue sky and sharpening it with Unsharp Mask 10/5000.
Same thing!
Nevertheless, Qimage coped with it with two clicks.
Leaving the Noise reduction slider in middle default position.
.. and since that really isn't Luminance noise but Chroma grain, I used the Chroma filter which filtered it out.

I am glad that you sent the images so I know why you were unhappy.
Thank you for the extra effort.

Fred

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tonygamble
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« Reply #23 on: June 12, 2014, 04:54:26 PM »

Fred,

I thought we were considering this:-

"I have tried that NR slider on a sequence of higher ISO shots, 1600, 3200, 6400

None then two thirds.

I cannot see any difference in the converted Tifs of each pair."


You have my 6400 and the 1600 and 3200 are on the way.

Yes, I got the image clean with that tick box in edit. What I was trying to do was to find the right setting for the slider - by doing the experimenting you asked for on this message thread yesterday.

If altering the slider makes no difference then I apologise for wasting anyone's time.

Tony


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Fred A
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« Reply #24 on: June 12, 2014, 05:05:57 PM »

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If altering the slider makes no difference then I apologise for wasting anyone's time.

It makes no difference on those images because the "noise" really isn't noise for a noise filter.
It is a specific type of digital graininess attributed to underexposure and extreme ISO.   The Noise reduction filter is not designed for that problem.
That's like taking a knife to a gun fight!
It certainly was not a waste of time. It was ab opportunity to address any misconception that all noise is the same and a single filter works on all noise.
Thanks,
Fred
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tonygamble
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« Reply #25 on: June 12, 2014, 05:11:55 PM »

Ok, Fred.

So that plain disk is no good.

Tell me what shot to take and I'll do it. That camera is pretty noise free up to 1600 - but I'll shoot what you want and you can show me the slider working.

Tony
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Fred A
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« Reply #26 on: June 12, 2014, 05:26:05 PM »

Tony,
I just looked over the new batch you sent.
See how much cleaner they are?
But also notice how you start at F 3.2 @ 1/125,  and then next one is F 4.0 @ 1/160, and the 4.5 @ 1/250
You change the ISO and float the exposure, so the higher the ISO, the noisier the image gets... I guess you have a reason.

I set my Aperture priority locked in on F 6.3, and the shutter varies with the light. I want a decent shutter speed to freeze birds and action.... so just a glance at the shutter speed in the eye piece tells me that I need a higher ISO. So I kick it 2 clicks to 800 and recheck my shutter... OK it's 1/.400 or faster.
But I never let both aperture and shutter float!
Fred
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tonygamble
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« Reply #27 on: June 12, 2014, 05:41:20 PM »

But I never let both aperture and shutter float!

It is what happens on my camera if you use the P setting.

Back to my question.

Experiment!
Move your NR slider all the way to the right, and then rebuild the thumbs for that folder.
Check the images,,,,   too soft? Back the slider off.


Tell me what shot to send you so you can show me the slider working, please.

Tony

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Fred A
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« Reply #28 on: June 12, 2014, 07:01:29 PM »

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Tell me what shot to send you so you can show me the slider working, please.
I wish I had some high ISO shots to send to you. I only have one at1600 which I posted in the 2014.234 thread..
I am hoping that Terry will have some. He takes a lot of low light insect macros.
Patience...
Fred
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tonygamble
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« Reply #29 on: June 12, 2014, 07:39:07 PM »

Thanks Fred,

I'd much rather send you one of mine so I can see what I am doing wrong with QU.

Tony
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