Comparing your Eyes with your digital Camera!

Your Eyes vs. your digital Camera!

Ever compared your eyes with an Digital Camera? How much MegaPixels it would have been? TechSiddharth.com brings you an off-content post about the technical specification of an human eye, when compared to an image capturing device.

Let us first deal with some basic terms used to describe optical devices. The definitions were taken from Google Search.

• Megapixels ~ A unit of graphic resolution equivalent to 2²⁰ or (strictly) 1,048,576 pixels.
• Resolution ~ The term resolution refers to the number of columns and rows of pixels.
• Pixels ~ A minute area of illumination on a display screen, one of many from which an image is composed. 

 From +YesI KnowThat , we have collected the following information, quoted as follows;

The Resolution of an human eye is 576MP, the technical breakdown is as follows:

Consider a view in front of you that is 90 degrees by 90 degrees, like looking through an open window at a scene. The number of pixels would be 90 degrees * 60 arc-minutes/degree * 1/0.3 * 90 * 60 * 1/0.3 = 324,000,000 pixels (324 megapixels).

At any one moment, you actually do not perceive that many pixels, but your eye moves around the scene to see all the detail you want. But the human eye really sees a larger field of view, close to 180 degrees. Let’s be conservative and use 120 degrees for the field of view.

Then we would see 120 * 120 * 60 * 60 / (0.3 * 0.3) = 576 megapixels.

The full angle of human vision would require even more megapixels. This kind of image detail requires A large format camera to record.

Therefore, once our cameras reach 576MP, the pictures you take with your camera will look exactly the same as you see them. 

One more fact to quote, the ladies see colours brighter than gents but can't see as well when it gets dark. This happens because of the variation in number of cones & rods present in human eye.