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John@Field
United Kingdom
13 Posts |
 Posted - Mar 29 2014 : 13:30:57
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I am using the latest version of DCRAW.DLL v1.454 to read a NEF image from a Nikon D7100
Using the CameraRaw Demo the result shows a very green cast.
Is there anything I can do to correct this error?
This is a clip of the NEF File converted to a Jpeg
This is a clip of the NEF file using the CameraRaw Demo.
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w2m
USA
1990 Posts |
Posted - Mar 29 2014 : 15:53:20
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I am not familiar with DCRAW.DLL parameters, which may change the image when it is loaded, you can execute ImageEnView.Proc.AutoEbhance and other procedures to improve the picture. Then you may save the picture with a new filename and file type. The procedures that are automatic are AutoImageEnhance1, AutoImageEnhance2, AutoImageEnhance3, AutoSharp, HistAutoEqualize, WhiteBalance_AutoWhite and WhiteBalance_GrayWorld.
You can also change the colors with other ImageEnProc functions.
By the very nature of raw camera files, the raw files are not processed by the camera like it does does with jpg files. That is why the picture looks like it does. The picture represents exactly what the lens saw when the photograph was taken. Before jpg files are saved to the memory card, software inside the camera automatically processes the picture then saves the picture to the memory card.
Raw images are similar to a negative "similar" to film cameras. That way you can process the file to the way you want it to appear, yet keep the original "negative".
For more information about raw images just google and you will find a lot of information.
This is what your picture will look like after processing with TImageENProc.AutoImageEnhance1.
To make the picture nearly the same as your jpg, you will have to experiment by processing the picture with other procedures in TImageEnProc.
William Miller
Adirondack Software & Graphics
Email: w2m@frontiernet.net
EBook: http://www.imageen.com/ebook/
Apprehend: http://www.frontiernet.net/~w2m/index.html
Custom ImageEn Development |
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Uwe
284 Posts |
Posted - Mar 31 2014 : 09:18:31
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John
quote:
Is there anything I can do to correct this error?
Get the latest sources (v. 1.461) from Dave Coffin's web site and compile
dcrawlib.dll yourself. That'll fix it.
-Uwe |
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xequte
38608 Posts |
Posted - Apr 03 2014 : 16:12:07
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Hi John and Uwe
V1.461 is now available from the Registered Users page.
Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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John@Field
United Kingdom
13 Posts |
Posted - Apr 04 2014 : 12:12:46
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Hi Nigel and Uwe,
Thanks for the information.
I have downloaded V1.461 and now all is well.
The colours are what I would expect.
JWA |
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Problem using DCRAW with a Nikon D7100
