HDR Soft Pro - 3.2 - Macintosh Instrukcja Użytkownika Pobierz pdf (Strona 10)

Photomatix Pro User Manual Page

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applied to the raw sensor’s data. If no profile is available, it uses the tone reproduction curve of

the Adobe RGB color profile.

When the images are scanned films or taken with a compact camera, it may be worthwhile to

check the option “Attempt to reverse-engineer tone curve applied”.

If your source images are 16-bit TIFF files that have been converted from RAW files with a RAW

converter that allow the image to be left in linear space (note: very few RAW converters allow

this), then check the option “No tone curve applied – pixel values are linear”. Only check this

option if you are 100% sure that the tonal values of the images are linear relative to the values

of light captured. Please note that the term “linear” may have a different meaning depending on

the RAW converter. In Adobe Camera Raw, for instance, linear is relative to the Adobe RGB

color space and not to the values of light, so you should never check this option with files

converted with Photoshop or Lightroom.

RAW conversion settings

When your source images are RAW files, the dialog shows options to let you select a white

balance and color primaries.

By default, Photomatix will use the “As Shot” White Balance (read from the EXIF metadata)

when converting the RAW data to HDR. You can adjust the White Balance by selecting a pre-

defined white balance from the drop-down menu, or by specifying the color temperature in

Kelvin. A preview lets you see the effect of the change on the source image.

The RAW data is in a color space specific to the camera. Photomatix will convert the data into a

standardized color space (by default Adobe RGB). You can, however, select sRGB or ProPhoto

RGB instead. Please note that the selected color space is used for the color primaries only, and

not for the tone reproduction curve. Since the HDR image values are in linear space, they do

not have a tone curve. The tone curve of the profile associated with the image will only be

applied during the tone mapping step, and not to the HDR image itself

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HDR Soft Pro - 3.2 - Macintosh Instrukcja Użytkownika Strona 10