Image capture
Rendering
process
Photography
Noise
Dynamic range
Colour depth
File formats
Single HDR Multiple HDR
• One image
•
Tone-mapping of the
raw image
• Action photography
possible (moving
scenes)
• Amplification of noise
• 11 f-stops (1:2600)
• 16-bit
• dng, tiff, or jpg
• Several images
•
Combination of under-/over-
exposed images into one HDR
image (raw), tone-mapping of
the raw image (optional)
• Only still photography possible
(no moving scenes)
• No additional noise
• A multiple of 11 f-stops
• 16-bit or 32-bit
• dng, tiff, jpg, hdr or exr
5.4.1 HDR overview
HDR
scene
multiple
scans
single
scan
combination of various
under- and over-
exposed
images in a new 32 bits
raw image
tone-mapping = luminance
adjustment on a single image
dng
Tiff
jpeg
16-bit
dng
Tiff
jpeg
16-bit
hdr
exr
32-bit (in
progress)
HDR
tone mapping
HDR
tone mapping
The graph bellow contains an overview of the different possible techniques when
speaking about HDR photography. However only the multiple HDR solution, mixing
differently exposed images can lead to a 32bit HDR file with extreme dynamic range.
5.4 HDR workflow
Instruction Manual Seitz 6x17 Digital - version 4.05 - May 2013- © by Seitz Phototechnik AG / Switzerland www.roundshot.ch page 78
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