Photoshop will not open raw - RAW Shooting and Processing - CHDK Forum supplierdeeply

Photoshop will not open raw

  • 10 Replies
  • 8959 Views
*

oppy

Photoshop will not open raw
« on: 07 / December / 2007, 00:09:32 »
Advertisements
I have been able to open the raw CRW files from my a710 in picasa and UFRaw, but they will not open in photoshop CS3 camera raw.  Does anyone else have this problem, and any idea how to get photoshop to work with my camera?

Thank you to those who spent the time making my camera better!

Re: Photoshop will not open raw
« Reply #1 on: 07 / December / 2007, 07:32:02 »
Picasa is able to open the original CRW file, but you need to convert it into a DNG before Photoshop can use it.

I personally prefer DNG4PS-2.  It's able to take all the exif data from the jpeg and combine it with the new DNG file.
It also has a lossless compression of raw files.  It takes a 8.5 Mb CRW down to 5-6Mb DNG.  Not a lot, but every little bit helps with storage.

You can find it here

*

Offline hydrogen

  • *
  • 20
  • Canon A570 IS 1.01A
Re: Photoshop will not open raw
« Reply #2 on: 10 / December / 2007, 18:57:05 »
The RAW files from CHDK are a 10-bit format, non-standard. Few programs deal with them well. Read the CHDK FAQ: RAW Files for info on the many ways that you can read and use CHDK RAW files. Personally, I use PhotoLine for my primary editor. It reads all of CHDK's RAW files from all supported cameras just fine with no conversions necessary. It's also a much better editor than PhotoShop.



Is this 10-bit format a limitation of CHDK or the camera hardware?

*

Offline hydrogen

  • *
  • 20
  • Canon A570 IS 1.01A
Re: Photoshop will not open raw
« Reply #3 on: 12 / December / 2007, 13:05:11 »
Is this 10-bit format a limitation of CHDK or the camera hardware?

The limitation of the camera hardware. It's not such a limit when you do the math. Instead of 16,777,216 (16.7 million) colors of JPG files (8-bit RGB data, 256^3), you get 1,099,511,627,776 (1.1 trillion) possible shades and hues out of the RAW file (10-bit RGBG data, 1024^4.) You need more than that?

Ahhh...the question of needs vs wants. :)

Actually the reason I asked was because I was wondering if it is possible for CHDK to pad the extra 2 or 4 bits of information so the RAW files do not require any extra processing before development.


*

Offline Anton

  • *
  • 13
SX 130is - Red-powdered dng-files
« Reply #4 on: 09 / February / 2011, 02:02:34 »
I have made a few RAW (dng) pictures with my SX 130is with CHDK from #173 in SX 130is forum.

Now I have a few questions:

1. Files without dng-Format (and without dng-Extension) can only be opened in Irfan view or Xnview.
But not in Ufraw or any Adobe - Programs.
Other positions in Menue are as delivered.
On Irfan View and Xnview they look as if they would only have colours white and green.
(Similar to b&w) Is this normal?

2. Files in dng-Format (with or without dng-Extension) can be opened on all Programs.
But they look like powered with a lot of red powder.
Blue sky looks horrible....
Is there a solution to avoid "red powder"?

3. When i deliver the files from 2. to Adobe DNG Converter 6.3 (Camera Raw 5.4) they will be resized about 20% each.

Does there anybody know why is it that.

Windows Explorer shows message, that both files are not compressed....

(A dng file on SD-Card uses about 18MB + 3-4MB jpg file each. And I would like to take a lot of them....)

Thanks for answers.
« Last Edit: 09 / February / 2011, 03:08:07 by Anton »

*

Offline Lebeau

  • ***
  • 187
Re: Photoshop will not open raw
« Reply #5 on: 09 / February / 2011, 09:46:37 »
Anton, the chdk raw file contains the byte dump of the sensor and the sensor size is wider than the area of the final photo.

For example, my A650 ten-bits sensor size is 4104x3048 (15 636 240 bytes) and the photo size is 4000x3000. (15 000 000 bytes) just for the sensor information. The sensor oversize is to allow a non-exposed area which could be use to calculate non-exposed noise. DNG overhead add about 700 KB to include thumbnail and photografic information. That means a total of, about 15 716 622 bytes

No magic solution for me to optimize storage since in raw (15 636 240 B) or in dng (15 716 662 B) is about the same thing in term of SD blocks. And there is no option concerning the jpg file, it's still and always there.

P.S.: Concerning the red powder, some day, nearby, someone will deliver a right color profile for the SX130 :)

*

Offline vit40

  • ****
  • 276
Re: Photoshop will not open raw
« Reply #6 on: 09 / February / 2011, 11:11:32 »
Check here, maybe it already exists

http://chdk.setepontos.com/index.php?topic=5709.30

*

Offline PS

  • ***
  • 157
  • A610 1.00f
Re: Photoshop will not open raw
« Reply #7 on: 09 / February / 2011, 12:23:55 »


*

Offline Anton

  • *
  • 13
Re: Photoshop will not open raw
« Reply #8 on: 10 / February / 2011, 03:51:49 »
@vit
I'v already used described profile for SX130.
But there was no better result on "red powder".
I'v made many raw pictures with my old Fuji 6500fd 6MB + xD Picture Card.
There was no color noise (powder).
Maybe there will help another solution?
(Converting RAF to DNG will saving about 40% Place on Computer.
But logical not on Picture-Card inside the Camera.)
Once I planned, that SX 130 will substitute Fuji.....

*

Offline quid

  • **
  • 67
  • SX130IS
Re: Photoshop will not open raw
« Reply #9 on: 10 / February / 2011, 04:48:10 »
DNG files from SX130 are 12-bit. Adobe DNG Converter converts them to 16-bit, but also applies compression - that is the reason for a smaller file size.

Fujifilm FinePix S6500fd has a larger sensor (1/1.7" compared to 1/2.3" in SX130) and lower megapixels, so it's expected that this camera will have lower noise. If you can upload example picture, we can tell you if this amount of color noise is expected on on SX130.


 

Related Topics