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Capture One 3.4 HDR feature

eleanorbrown
Could someone in the know please tell me more about how the HDR function works on a single file with high dynamic range in the new version of Capture One 3.4? I'm been hoping for something like this. thanks, Eleanor
http://www.eleanorbrown.com
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4 comments

Date Votes
  • Olivier111
    Hi,

    I'm not sure I understand your question.

    I'm not aware of an HDR tool in C1.

    Technicaly HDR application (ie. photomatix) can generate and HDR file using 3 pictures of the exact same scene (1 proper ex, 1 under ex, 1 over ex)

    In C1, you could use 1 picture properly exposed and generate a 16bits TIFF file then with the same RAW file generate 2 more 16bits TIFF but 1 over ex and 1 under ex.

    The next step is to combine the 3 TIFFs into 1 containing the DR of all 3.

    I don't think that C1 can do this operation but there is other applications designed only for that.

    I hope it helped, otherwise, please rephrase your question.

    Cheers
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  • eleanorbrown
    What I meant was the HDR that is going to be part of Capture One 4.0 next year. In the meantime I have been using Lightroom for my P45 files and my results are absolutely incredible. Lightroom Beta 4 has new high dynamic range capabilities that takes advantage to the Phase One back's huge 16 bit dynamic range. My RAW processing in Lightroom is astounding and saves me from making multiple processes of files (for shadows, highlights, etc) in C1 then all the time spent blending in Photoshop. Lightroom does a better job with these difficultl files to boot!! Lightroom also has some very precise sofisticated curves adjustments that were impossible for me to do in capture one. There are also a lot of other features that makes adjusting RAW Phase One files a breeze with very very precise tonal and color control..... It's going to take a whole lot to get me to change from Lightroom back to Capture One.

    Eleanor
    http://www.eleanorbrown.com
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  • NN8878311
    Since when does Lightroom support the Phase One Raw format??

    //Kristofer
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  • jjlphoto
    [quote="Olivier" wrote:
    Hi,
    Technicaly HDR application (ie. photomatix) can generate and HDR file using 3 pictures of the exact same scene (1 proper ex, 1 under ex, 1 over ex)

    In C1, you could use 1 picture properly exposed and generate a 16bits TIFF file then with the same RAW file generate 2 more 16bits TIFF but 1 over ex and 1 under ex.


    A true 32 bit HDR image must be created from different files exposed differently. Simply taking one file and reprocessing it to different levels will only produce an image with more easily seen detail that was already there to begin with. And how those files are treated will determine if you receive a true 32 bit HDR file, of a standard 16 bit file merely with expanded range.

    From HDR-Soft:
    What are the differences between Exposure Blending and HDR Tonemapping?
    Both processes start from the same source files: differently exposed Low Dynamic Range (LDR) images. And both attempt to produce as final result an LDR image that shows tonal details of the entire dynamic range captured by the different exposures.
    The differences are in the process itself. Exposure Blending consists in combining the differently exposed images in such a way that highlights details are taken from the underexposed photos and shadows details from the overexposed ones. Since the bit-depth does not change throughout this process, the basis of Exposure Blending algorithms is a type of weighted average of the source images.
    The advantage or Exposure Blending is that it is easy to understand and you can see what you are doing. Also, it is rather familiar to photographers who are used to doing this process manually in image editing applications. In Photomatix, the Exposure Blending functions are named "Highlights & Shadows" and are available under the menu "Combine".
    HDR Tone Mapping is composed of two steps. The first step creates an HDR image from differently exposed photos. This HDR image can not be displayed correctly on a Low Dynamic Range monitor, which is why a second step called Tone Mapping is necessary. Tone Mapping consists in scaling each pixel of the HDR image, so that details in highlights and shadows show correctly on monitors and prints (those details are available in the HDR image but not directly visible in both highlights and shadows because of the low dynamic range of the display).
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