Dynamic Photo HDR

(Maurizio Gaiani) #1
18 Dynamic Photo HDR

3.3 One Image HDR


If you use only one image as your HDR source you will see this dialog:

It will inform you that creating HDR images from single file is not a very good idea because you are
actually not getting more dynamic range.
(In case of RAW file there is a bit more dynamic range even from single file since RAW files are
commonly 14 bits*, but it is still often too low for a normal HDR file)

Additionally it will offer you two options:

Full HDR process
This will continue creating HDR file as if you load more then one images except it will not go to the
aligning process. Then you can Tone-Map this HDR file. Again, the HDR file from a single image is a
very poor representation of a "high dynamic range" image even from single 14bit RAW file.
It is usually better to process single RAW file with this method.

FITYMI process
This will simply fake the HDR tone mapped look on the image without actually going through the HDR
file creation. As you can see in the preview, on a single JPG image the result can be very similar to full
HDR processing on the same single image, but it takes far less time.
As you press OK the process will go directly to the FITYMI Tone-mapping window
It is usually better to process single JPG image with this method.
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