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colin walker
20th of June 2002 (Thu), 08:00
Hi,


I have just programmed a new D60 CRW RAW image converter based on Dave Coffin's code, and here are my results.

The sample is from a very small crop of the original

Both Linear images then had exactly the same workflow applied in Photoshop 7.


As you can clearly see Canon's software blurs & blows highlight detail in its linear output, WHY!

And yes the pubs wall was a light yellow as in my converters output.

Image 1: CRW file converted to Linear Tiff with Canon's RAW Image converter V2.
http://homepage.ntlworld.com/colinwalker/can.jpg

Image 2: CRW file converted to Linear Tiff with my new CRW converter V1.0
http://homepage.ntlworld.com/colinwalker/colin.jpg
colin walker
20th of June 2002 (Thu), 08:01
Click here to view the full sized images.

http://www.pbase.com/colinwalker/crw

I say again, NO sharpening was applied to any image.

Colin
Pekka
20th of June 2002 (Thu), 08:14
colin walker wrote:
Image 1: CRW file converted to Linear Tiff with Canon's RAW Image converter V2.
http://homepage.ntlworld.com/colinwalker/can.jpg

Image 2: CRW file converted to Linear Tiff with my new CRW converter V1.0
http://homepage.ntlworld.com/colinwalker/colin.jpg

The images you show are not linear TIFF's, they are linear TIFF's converted to (8-bit) JPG. So, does your converter convert to linear TIFF or from linear TIFF to 16-bit or 8-bit TIFF/JPG?
colin walker
20th of June 2002 (Thu), 08:23
Hi Pekka,

My converter converts the CRW_RAW file to a 16bit Linear Tiff file.

I then apply my ICC profile in PS7, and then save as 8bit jpeg for web viewing.

It is a 2-part process that involves no canon software.

Colin
psvnyc
20th of June 2002 (Thu), 08:28
Looks VERY interesting. Is your software shareware or do you sell it?
colin walker
20th of June 2002 (Thu), 08:30
Hi,

It is still in Alpha stage, I will post a message on this forum advising when it will be available.


Colin
colin walker
20th of June 2002 (Thu), 09:21
Hi,

I have updated the images on my PBase site to reflect the latest build of my CRW Linear Converter.

http://www.pbase.com/colinwalker/crw

There are now 2 images one without noise reduction and one with.

Changes:-

- Reduced Cyan Halo Around Highlights
- Added Noise Reduction System
- Recalculated WB Coefficients
- Produced new Linear ICC profile to go with the Converter.

Colin
colin walker
20th of June 2002 (Thu), 16:48
Hi All,

I have updated my Pbase gallery to include a couple of model images kindly supplied by: paulandre.com.

Before anyone asks the model was lit with a "Soft Gold Reflector" showing my conversion is more accurate than Canon's feeble attempt!!

http://www.pbase.com/colinwalker/crw

Colin