Digital Image Sensor Pixels

The size of pixels on the surface of a digital image sensor inside of a camera is also rigidly fixed.

In a 6 megapixel camera chip there are just over 6 million pixels on the chips surface and they can't change size. Digital chip pixels are organized like this:

FIGURE 142 Digital camera sensor.

FIGURE 142 Digital camera sensor.

These fixed sensor pixels store the visual information that computers use to create digital images.

The amount of information recorded by a 6 megapixel sensor is enough to create an approximately 9" x 12" image that prints with 240 dots per inch on an ink jet printer. In terms of digital image quality, this resolution number is the one that means the most.

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