RAW processing: "standard" editor vs "RAW" editor?

(5 posts)
  • pyarnall
    Member

    I would be grateful if someone could help me understand the elemental difference in what AC is doing when working with a RAW file in the two editing environment choices, the RAW processor (ctrl-alt-E) vs the standard editing space, (Ctl-E). I understand and appreciate the specific capabilities of RAW processing, I am curious about what AC is doing when I simply edit a RAW with out specifically using the RAW processor first. I get very satisfactory results for 90% of my images, usually intended for electronic presentation only, by simply going to the editor making my adjustments and 'saving as' to the desired file format and name. Perhaps another way of asking the question is how is the standard editor generating its starting image on the screen? Doesn't the RAW have to be "interpreted" in both cases?

    Re the RAW processor....I am impressed with the RAW processing in Pro2 but wish I could have the 'Advanced' light curve tool instead of 'EQ'. I only use the 'Advanced' in the shadow highlight tool in the standard editor... it's incredible! Wish it was also in the RAW processor.

    Thanks to anyone able to provide insight to the above.

    Posted On September 20, 2007 - 10:22 AM (2 years ago) (Permalink to this post)
  • Erin
    Developer, ACD Systems

    Paul,

    When you enter the standard Editor with a RAW image, the starting image is the RAW image with all the default processing applied. You would see similar results if you were to convert a RAW image to a 48 bit TIFF and then enter the editor with that image.

    In the RAW processor you are able to apply processing that the camera usually does before producing a JPG(such as white balance). When you are in the standard Editor with a RAW image, all this processing has already been done.

    Does this answer your question?

    Thank-you for the suggestion regarding adding the 'Advanced' light curve tool to the RAW processor - we'll keep it in mind when deciding on new features.

    Posted On September 20, 2007 - 12:07 PM (2 years ago) (Permalink to this post)
  • pyarnall
    Member

    Erin... thanks very much. First, what I think I hear you saying is that working with the standard editor out of the gates is not compromising the image quality at all,i.e., not like starting with a jpg where 20% of the file info is gone before you start. Correct? Basically then, it is just a matter of needing / wanting the capabilities of the RAW processor not otherwise available in the standard editor.

    While I have your 'ear'.... a small issue has been bugging me through many versions of ACDsee... the default sharpening values. They are, for my tastes, FAR too extreme. I have a number of presets that I use, but I still have to go throught the pointing and clicking to get to them. When processing a lot of files the repitition is tiresome. Sure wish there was a way for us to define our own default.

    Posted On September 20, 2007 - 12:48 PM (2 years ago) (Permalink to this post)
  • Marc Sabatella
    Moderator

    Paul Y said:

    Erin... thanks very much. First, what I think I hear you saying is that working with the standard editor out of the gates is not compromising the image quality at all,i.e., not like starting with a jpg where 20% of the file info is gone before you start. Correct? Basically then, it is just a matter of needing / wanting the capabilities of the RAW processor not otherwise available in the standard editor.

    Although you say you are aware of the basic differences between RAW processing and standard image editing, I'd just like to point out for anyone unclear on this that the main difference in this respect has to do with workflow. With the standard image editor, in order to commit your changes, you need to save them to another format. If you wish to tweak those settings, you have to either start over with the original RAW and figure out what you did last time, or accept that the processing you did the first time around may have made some further processing impossible. For instance, if you oversharpen the first time, there is no backing this off - you've got to start over. Whereas with RAW Processing, next time you enter the tool, you'll find all settigns right where you left them, and you can easily back them off. FWIW, I also find the RAW processor loads faster than the image editor on the same RAW file.

    BTW, Erin - you say that sending a RAw file to the editor is the equivalent of first converting to 48bit TIFF. But I'm assuming that is still demosaiced - that is, rather than (say) 12 million pixels each with a single 12-bit value that is either R, G, or B, you've got 4 million pixels each with a 48-bit RGB value, and that decisions have already been made as to which of the original 12 million pixels get collapsed into the 4 million RGB pixels. Thus, some operations - like sharpening - might not be able to work quite as well as they could have in RAW processing. No?

    While I have your 'ear'.... a small issue has been bugging me through many versions of ACDsee... the default sharpening values. They are, for my tastes, FAR too extreme. I have a number of presets that I use, but I still have to go throught the pointing and clicking to get to them. When processing a lot of files the repitition is tiresome. Sure wish there was a way for us to define our own default.

    Me too, although I find it interesting that in Pro 1, the most common complaint was that default sharpening was not nearly enough.

    Posted On September 20, 2007 - 05:16 PM (2 years ago) (Permalink to this post)
  • Erin
    Developer, ACD Systems

    Marc,

    If your original RAW image has 12 million pixels each with a single 12-bit value that is either R, G, or B
    the image will get demosaiced but the resulting image will still contain 12 million pixels each with a 48-bit RGB value. The sharpening should work just as well in the editor as it does in RAW processing.

    Thanks for the suggestion regarding the ability to customize default filter values in the editor.

    Posted On September 21, 2007 - 12:15 PM (2 years ago) (Permalink to this post)

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