Lecture 08: HDR Photography

Lecture 08: High Dynamic Range Photography from Grant Adams on Vimeo.

Lecture exploring high dynamic range (HDR) photography. Covers basic techniques and software packages and includes numerous examples.

Lecture 08: High Dynamic Range Photography (Part 2) from Grant Adams on Vimeo.

Demonstration of Photoshop techniques in processing High Dynamic Range Photography. Demonstration includes using masks to selectively apply adjustment layers to specific areas of the photograph.

To view the lecture slides or to download a .pdf of the lecture, click one of the links below.

Lecture Notes for Lecture 8: HDR Photography

HDR Photography

High Dynamic Range

  • A set of techniques that allow a greater dynamic range of luminances between the lightest and darkest areas of an image
  • Image: http://www.oreillynet.com/

High Dynamic Range

  • A set of techniques that allow a greater dynamic range of luminances between the lightest and darkest areas of an image
  • Image: www.studioshadowlight.com

Why?

  • To more accurately represent the wide range of light intensity levels found in real scenes
  • To mimic how the human eye sees a scene (which cannot be captured in traditional photographs)
  • Image: www.jamie-katz.com

Tone Mapping

  • Reduces overall contrast to facilitate display of HDR images on devices with lower dynamic range
  • Can be applied to produce images with preserved or exaggerated local contrast for artistic effect.
  • Image: www.illiteratewithdrawal.com

Tone Mapping (continued)

  • Reduces the dynamic range, or contrast ratio, of the entire image, while retaining localized contrast (between neighboring pixels)
  • Image: www.hdrsoft.com

Software Choices

  • Photoshop
    • Merge to HDR automated action
    • Post processing necessary to get desired results (curves, levels, masking,etc.)
    • No built in tone mapping Available on lab computers PC/Mac
  • Photomatix
    • Considered to be gold standard in HDR tone mapping
    • Plugins for Photoshop, Lightroom, Aperture or Standalone Application
    • $100-$200 (depending on version, but academic pricing (60% off) for students)
    • PC/Mac
    • Image: prolineimagery.blogspot.com
  • Essential HDR (community edition)
    • Great tone mapping Free to use
    • Limited size (resolution) of output unless you pay
    • PC only
    • Image: imagingluminary.com

Examples

Links

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