Photographic Genius – Image capture

… or not.

Photographers have long been concerned with capturing what the eye can see.

Seeing things involves much more than just the optics of the eye, but the cognitive and motor functions of the brain. So a major limitation of photography is that the eye doesn’t see everything in the picture. The eye sees only the part of the picture (perspective) on which attention is focused and adjusts the eye dynamically to optimise the visual information.

Not only does the eye focus of objects, but significantly, it adjusts to the brightness in order to detect edges and to achieve a colour balance.

The “invention” is to mimic how one sees;  the image capture device sampling zones of the view over plausible focal, brightness and chromatic ranges to optimise the edge and colour information and storing the results in a data storage container.

The image presentation  device retrieves data from the container which are optimal for the part of the view which has the viewer’s attention; either by an implicit viewer interaction or automatically by detecting which part of the view is the centre of attention by e.g. retinal detection.

Advertisements

7 thoughts on “Photographic Genius – Image capture

  1. What is this post about? It reads like some info from the middle of a useful description.

    Reply
    • Have you read the whole posting?

      It’s about true image capture; capturing the view so that a viewer of the captured image can see things as though they were there at the time that the image was captured.

      Reply
  2. This idea relies upon a mistaken belief. The reality is that the eye does not “see” images at all. The brain is responsible for creating images, colours, edge detections and so on. Data from the retina is merged with data from memory, and then this is what a person “sees”, This is why eye-witness testimony is notoriously unreliable.

    Reply
    • And the photographic and motion picture industries have been wasting their time and money for a century, putting images onto film, paper and screens … because people can “see” all those things in their minds anyway.

      Reply
  3. Yes, but in many movie productions and in many images, they DO make use of this phenomena, of merged memory and visual (and auditory) stimulation. This is how and why “Propaganda” and “Advertising” works.

    What You see is not necessarily what is shown on the screen, or even in real life. Just look at all the different accounts of say, a football game for instance. Different groups of people see different incidents as significant, because of pre-conceived notions & etc.

    Reply

Your say

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s