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Corel PaintShop Pro X4 User Guide
Unlike the human eye, digital camera sensors (or film in traditional
cameras), can only capture a limited dynamic range when
photographing scenes with both very bright and very dark areas, such
as an interior with a large window. HDR processing creates a 32-bit
image which has twice as much information, and therefore many more
steps between tones, than an ordinary JPG. This HDR image is then
evenly exposed, resolving details in the darkest areas, without losing
definition in the brightest areas. And when pushed beyond the
“corrective” boundaries, HDR can produce an unreal, plastic, or even
“hyper-real” tone, and as such has become a creative technique in
itself. Typically, an HDR file needs to be converted back to a 16-bit
image format for final output.
The photos along the top were taken with different
exposure levels, then they were combined to create a
single beautifully exposed image.
Taking photos for HDR processing
If you are new to HDR processing, the information below can help you
get started.