How many mega pixel does a human eye contains?

Question

How many mega pixel does a human eye contains?

Answer 1

the human eye has about 90 terapixels

Answer 2

I DON' KNOW  PLEASE  TELL ME

Answer 3

the human eye does not use megapixels...

pixels are a cameras way of converting a light image into a digital photograph - each tiny section of the image is converted into a digital band called a pixel...

1 mega pixel is 1 million pixels... the more pixels a camera is capable of capturing the better quality the photo is.

you may not be able to tell the difference with the naked eye between a 5mp photo and an 8mp photo... but once its blown up or resized the 5mp photo will deteriorate quicker - and go all 'blocky'

the human eye just takes light from outside and focusses it onto your retina - its like a big screen full of light sensitive receptors at the back of your eye - your brain then takes this image and works with it so you can see it...

it does not do this digital conversion to megapixels

Answer 4

One.

Very big.

At the center...

Answer 5

http://news.deviantart.com/article/27174...

Answer 6

An approximate conversion, functionally?

About one, but not evenly distributed across the visual field.

Each optic nerve contains about 1.2 million fibres, and some of these are not carrying visual information...

so, while the retina contains about 115 million photoreceptors, the information from these is considerably grouped together and processed before leaving the eye.

Especially in the visual periphery.

Only at  the very centre, macular vision, can there be a one-to-one photoreceptor/nerve correspondence.

Answer 7

The average human retina has five million cone receptors on it. Since the cones are responsible for colour vision, you might suppose that this equates to a five megapixel equivilant for the human eye.

But there are also a hundred million rods that detect monochrome contrast, which plays an important role in the sharpness of the image you see. And even this 105MP is an underestimate because the eye is not a still camera.

You have two eyes (no kidding!) and they continually flick around to cover a much larger area than your field of view and the composite image is assembled in the brain - not unlike stitching together a panoramic photo. In good light, you can distinguish two fine lines if they are seperate by at least 0.6 arc-minutes (0.01.Degrees).

This gives an equivilant pixel size of 0.3 arc-minutes. If you take a conservative 120 degrees as your horizontal field of view and 60 degrees in the vertical plane, this translates to ...

576 megapixels of available image data.

Curiously - as a counterpoint to this - most people cannot distinguish the difference in quality between a 300dpi and a 150dpi photo when printed at 6x4", when viewed at normal viewing distances.

So: although the human eye and brain when combined can resolve massive amounts of data, for imaging purposes, 150dpi output is more than enough to provide adequate data for us to accept the result as photographic quality.

But don't forget that women have more cones and men have more rods - I kid you not.Therefore the ladies see colours brighter than gents but can't see as well when it gets dark.

hope it helped

Answer 8

ask some good Q.s