Yarc : A RAW converter for G1, too

It's easy to answer:

preliminary selection.

Before I start processing of my CRWs, I've to know, what to process. TIFFs consume a lot of space. That's the first reason.

The other, of course, indexing before burning CD. I try to store CRW + JPEG, rather than TIFFs

I rarely do batch CRW to TIFF conversion. I work on every picture personaly, sometimes it needs to apply Custom White Balance.

Yarc users: I noticed that some of my Yarced JPG files (I use the -j option only on extraction) don't have the EXIF information attached to them, but some do.
Mmm... I can't seem to find a pattern as to why some do, and some don't. Could I be doing something wrong?

The EXIF info doesnt' show up in ACDSee, or Exif.exe, or any other EXIF viewer that I have access to (EXIF read and EXIF reader).

Any suggestions?

Otherwise, Yarc is a god-send.

cheers.

gandini,

>I noticed that some of my Yarced JPG files (I use the -j
>option only on extraction) don't have the EXIF
>information attached to them, but some do.

Check to see if you have matching THM files (with the same root file name) in the same directory with the CRWs. The EXIF comes from the THM and gets attached to the JPG.

If this is not the problem, send me an example CRW and THM and I'll see if I can see what's wrong.

regards, Bruce

Bruce, I think you hit on the problem. It only happens on my "old" files, for which I had separated the THM and CRW files (I actually realized this was a mistake, and so have them together again in the same directory). Anyway, I batch processed all my old files when I got Yarc, so that would explain why recent files have the EXIF info and old files don't. I'll rerun Yarc on the newly reunited files/directories, and it should work just fine.

btw. I am running Windows 2000, and the batch processing instructions you provide in your readme file:

"If you create a shortcut to Yarc on your desktop, you can do right click, Properties|Shortcut and add your favorite switches to the end of the Target field. This trick only works in Win2000 and WinME. In Win98 and WinNT/4 you can do more or less the same thing by making a .bat file and putting the switches in it. "

don't work for me. I don't get a target field. Also, can I specify the destination folder in the swiches if I get the target thing to work?

cheers,

gandini,

>...add your favorite switches to the end of the Target
>field....don't work for me. I don't get a target field.
>Also, can I specify the destination folder in the swiches
>if I get the target thing to work?

As I don't have Windows2000, the suggestion is second hand. Some with Win2K have reportedly been able to make it work. I'm not sure why you don't get a Target field. Nevertheless, you can accomplish the same thing if you create a yarc.ini file in your Yarc installation directory. Just make a normal text file with one switch group per line - for example:

Yarc.ini
---------------
-jtl
-oc:\images\incoming\ti​ffs
---------------

Yarc.ini will be read and applied (before any command-line switches) each time you run Yarc. In this example, each CRW files you drop on the shortcut will get preview JPGs and TIFFs extracted to the c:\images\incoming\tif​fs folder along with a log file containing the EXIF data as text.

regards, Bruce

BTW, you have some very nice images on your site.

Hi Bruce,

Yup, I get your points and motivation for the way you design your program.......and I noticed that yarc already has feature no 2 which I suggested in the earlier thread...... cool!

it works very well for me with feature no 2 in place.....there are still a few mixed-light shots for which I would prefer to pick a custom white point rather than doing it in Photoshop (firstly, i'm not tat good in PS yet; secondly, i find it MUCH easier to do it with RawConverter).

And as you said, the jpeg thumbnail HTML page works great for judging whether an image is worth the extra work or not!

thanks!

I tried Yarc with images from my G1. Looks great, compared to zoom browser.

But I'm getting 8 bit TIFF, not 16. I understand G1 files are internally 10 bits per channel. Is there any way to get all 10 bits in a 16 bit TIFF?

thanks,
Richard Wolfson

Richard Wolfson,

>I understand G1 files are internally 10 bits per
>channel. Is there any way to get all 10 bits in a 16 bit
>TIFF

Sorry - if Canon's software only gets 8 bits, so does Yarc. It uses Canon's DLLs. Where did you see that the G1 is 10 bits internally?

Bruce

Bruce Henderson,

> Sorry - if Canon's software only gets 8 bits, so
> does Yarc. It uses Canon's DLLs. Where did you
> see that the G1 is 10 bits internally?

I couldn't remember, so I did a search. Here's some links to what I found:

http://www.imaging-resource.com/PRODS/G1/​G1A11.HTM says:
"Finally, any modifications or tweaks you make on these files with ZoomBrowser begin with the full 10-bit data that the camera captured. This means that fewer image artifacts will result from your adjustments."

Canon press release at
http://www.powershot.c​om/powershot2/G1/press​.html
says: "Additionally, the G1 is capable of capturing enhanced color depth up to 30 bits in RGB mode at full resolution due to a new RAW mode developed for the camera. The biggest advantage of RAW mode is that it preserves maximum image quality, since data is recorded to the memory card directly from the CCD without degradation. "

Wish List for G1's Firmware Updates
Compiled By Pekka Saarinen at
http://studio-on-the.net/photography/G1​/wishlist.html
in item No. 11 wishes for:
"Ability to use the full 10-bit of info in the RAW format, in order to be able to use 3rd party software (such as Adobe Photoshop) to adjust the curves and white balance in full 16-bit mode (with 10 bits of info, the rest being 0)."

So, I take it the 8-bits-out limitation is part of Canon DLLs. Too bad. If you splurge for a D30, they let you have high bit data. A little like flying first class, I guess.

thanks,
Richard

Richard Wolfson,

>Finally, any modifications or tweaks you make on
>these files with ZoomBrowser begin with the full 10-bit
>data that the camera captured

Well - that's a new one on me! This says clearly that ZoomBrowser is able to read all 10 bits. Is anyone with a G1 (shooting RAW) able to confirm this? If true, Yarc may be able to do the same.

Bruce

The first 'stable' release of Yarc (Yarc1.5) has been posted at http://www.roava.net/~​henderbc/yarc.htm .

This version has some minor improvements over Yarc1.4.9b.

1) Problems with renamed CRWs whose root name didn't have 4 numeric digits at the end are now fixed. You can rename your files however you like. Note, however, that if you want to use the range selection syntax (ie: Yarc -jt CRW_1234..1244), the last 4 characters of the name must be numeric.

2) Yarc now properly extracts CRW files which have been rotated in ZoomBrowser.
Note however, that rotation will have no effect on the files Yarc extracts. This is because ZoomBrowser doesn't really rotate either the JPG or the CRW. It merely marks the file so it knows to display it rotated the next time you view it.

regards, Bruce