Sony RAW images slow and incorrect brightness

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rra
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Sony RAW images slow and incorrect brightness

Post by rra »

When reading ARW images taken from a Sony DSLR camera
and comparing them with the same (and simultanious) shot JPG image
the ARW image seems way to bright.

Also reading the ARW type image takes for ever,
I know it can be read much faster if I compare it being read with Adobe Photoshop on the same system .

René
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Re: Sony RAW images slow and incorrect brightness

Post by xnview »

Could you send me a sample, please
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Re: Sony RAW images slow and incorrect brightness

Post by Hacker »

Hello Pierre, all
As a happy owner of a new Sony DSLR I have to agree with rra, the ARW file looks much worse than the JPG and it takes a long time to read / process. I have uploaded one sample ARW and the corresponding JPG for testing.
http://thehacker.totalcmd.net/xnview/DSC00015.ARW
http://thehacker.totalcmd.net/xnview/DSC00015.JPG
If you wish, I can upload as many image pairs as you'd like.

BTW: I know about the View - Misc - Camera RAW options, but if possible I would like to see the original ARW in good quality and a bit faster instead of the JPG preview.

Thank you
Roman
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Re: Sony RAW images slow and incorrect brightness

Post by xnview »

Hacker wrote: BTW: I know about the View - Misc - Camera RAW options, but if possible I would like to see the original ARW in good quality and a bit faster instead of the JPG preview.
If you want to view ARW in high resolution, the loading will be slow... (decoding is slow)...
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Re: Sony RAW images slow and incorrect brightness

Post by Hacker »

Pierre,
xnview wrote:If you want to view ARW in high resolution, the loading will be slow... (decoding is slow)...
OK, I can accept that, if there is no faster way, but the image still looks way worse than the JPG image (or the embedded preview). Any way this could be improved?

TIA
Roman
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Re: Sony RAW images slow and incorrect brightness

Post by xnview »

Hacker wrote:Pierre,
xnview wrote:If you want to view ARW in high resolution, the loading will be slow... (decoding is slow)...
OK, I can accept that, if there is no faster way, but the image still looks way worse than the JPG image (or the embedded preview). Any way this could be improved?
Do you use 'Use automatic balance' & 'Automatic brightness'?
Pierre.
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Re: Sony RAW images slow and incorrect brightness

Post by Hacker »

xnview wrote:Do you use 'Use automatic balance' & 'Automatic brightness'?
I tried all 16 combinations of "High resolution", "Use automatic white balance", "Use camera white balance" and "Automatic brightness". Does any combination produce a good image for you?

Roman
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Re: Sony RAW images slow and incorrect brightness

Post by obelisk »

you obviously have no idea what a raw image is.
go read up on it, if you want the raw to look exactly like the camera jpg, use the sony software.

you may be disappointed in what the raw looks like, but sorry, THAT IS what your Sony camera took. If you don't know how to take photos properly, you don't know how to set your camera so it takes correct exposures, you'll get crap. Sony does a lot of processing to BOTH their raw and jpg. See dxo's article on half-baked raws.
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Re: Sony RAW images slow and incorrect brightness

Post by Hacker »

Hello obelisk,
obelisk wrote:you obviously have no idea what a raw image is.
go read up on it, if you want the raw to look exactly like the camera jpg, use the sony software.

you may be disappointed in what the raw looks like, but sorry, THAT IS what your Sony camera took. If you don't know how to take photos properly, you don't know how to set your camera so it takes correct exposures, you'll get crap. Sony does a lot of processing to BOTH their raw and jpg. See dxo's article on half-baked raws.
What kind of processing does Sony to their RAW?
Is XnView not capable of reading out the settings saved in the RAW (like the white balance) and process it in a similar way to "sony software" (you probably mean Image Data Converter SR)?
Can you post a link to the DxO article about half baked RAWs?

Here is what I see in XnView when I look at the RAW image (converted to PNG so we see the same thing):
http://thehacker.totalcmd.net/xnview/DSC00003.PNG
And here is the JPG from the camera:
http://thehacker.totalcmd.net/xnview/DSC00003.JPG

In your opinion, does the PNG contain enough data to make the JPG out of it? You can check the histogram, for instance.

TIA
Roman
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Re: Sony RAW images slow and incorrect brightness

Post by XnTriq »

Hacker wrote:What kind of processing does Sony to their RAW?
Is XnView not capable of reading out the settings saved in the RAW (like the white balance) and process it in a similar way to "sony software" (you probably mean Image Data Converter SR)?
Can you post a link to the DxO article about half baked RAWs?
DxOMark: Half-cooked RAW (10/Mar/2009)
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Re: Sony RAW images slow and incorrect brightness

Post by xnview »

Hacker wrote: Here is what I see in XnView when I look at the RAW image (converted to PNG so we see the same thing):
http://thehacker.totalcmd.net/xnview/DSC00003.PNG
And here is the JPG from the camera:
http://thehacker.totalcmd.net/xnview/DSC00003.JPG
Could you post the RAW file?
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Re: Sony RAW images slow and incorrect brightness

Post by Hacker »

XnTriq wrote:DxOMark: Half-cooked RAW (10/Mar/2009)
Thank you.
xnview wrote:Could you post the RAW file?
Of course.
http://thehacker.totalcmd.net/xnview/DSC00003.ARW

Roman
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Re: Sony RAW images slow and incorrect brightness

Post by xnview »

Right, there is a problem... I'll check with dcraw...
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Re: Sony RAW images slow and incorrect brightness

Post by Hacker »

This seems to be fixed in v1.98 beta 1, even though I could not find the fix being mentioned in the changelog.

Thank you
Roman
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