OUTLINE OUTLINE • What is Photography? What is Photography? • What is ‘The Photographic Signal’? What is ‘The Photographic Signal’? • Perfecting Film-Like Photography: Perfecting Film-Like Photography: Old Problems, New Approaches Old Problems, New Approaches • Photography Beyond Film: Photography Beyond Film: New Goals, Methods, Expressions New Goals, Methods, Expressions
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OUTLINEOUTLINE What is Photography? What is Photography? What is ‘The Photographic Signal’? What is ‘The Photographic Signal’? Perfecting Film-Like Photography:
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OUTLINEOUTLINEOUTLINEOUTLINE
• What is Photography? What is Photography?
• What is ‘The Photographic Signal’? What is ‘The Photographic Signal’?
• Perfecting Film-Like Photography: Perfecting Film-Like Photography: Old Problems, New ApproachesOld Problems, New Approaches
– A more expressive, controllable displayed result,A more expressive, controllable displayed result,
from transformed, merged, decoded sensor datafrom transformed, merged, decoded sensor data
What What isis Photography? Photography?What What isis Photography? Photography?
• A ‘bucket’ word: a neat container for messy notionsA ‘bucket’ word: a neat container for messy notions(e.g. aviation, music, comprehension)(e.g. aviation, music, comprehension)
• A record of what we see,A record of what we see,or would like to see,or would like to see,in tangible form.in tangible form.
• Does ‘film’ photography Does ‘film’ photography always capture it? always capture it? no.
• So, what do we see?So, what do we see?Harold ‘Doc’ Edgerton 1936Harold ‘Doc’ Edgerton 1936
DisplayDisplayRGB(x,y,tRGB(x,y,tnn))
ImageImageI(x,y,I(x,y,λλ,t),t)
Light &Optics3D Scene3D Scene
light sources, BRDFs,shapes,
positions,movements,
…
EyepointEyepoint position,
movement,projection,
…
PHYSICALPHYSICAL PERCEIVEDPERCEIVED
What What isis Photography? Photography?
Exposure Exposure Control,Control,
tone maptone mapSceneScenelight sources,BRDFs,shapes,positions,movements,…
EyepointEyepointposition, movement,projection,…
Vis
ion
Photo: A Tangible RecordPhoto: A Tangible RecordEditable, storable asEditable, storable as
Film or PixelsFilm or Pixels
3D Scene?3D Scene?light sources, BRDFs,shapes,positions,movements,…
Eyepoint?Eyepoint?position, movement,projection,…
Meaning…Meaning…
VisualVisualStimulusStimulus
3D Scene3D Scenelight sources,
BRDFs,shapes,
positions,movements,
…
EyepointEyepoint position,
movement,projection,
…
PHYSICALPHYSICAL PERCEIVED PERCEIVED or UNDERSTOODor UNDERSTOOD