What Is the Meaning of Megapixel?
Megapixels are used to measure the resolution of digital cameras. The larger the number, the sharper the resolution.
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Identification
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A megapixel equals one million pixels. Each pixel has its own color and brightness based on the image that is being captured. When all the pixels are put together, the image is created.
Effects
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The more megapixels you have in the original image, the more you can crop your photo without losing image quality when the image is printed.
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Considerations
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The amount of megapixels you need depends on how large of prints you are making. According to HP, a two-megapixel image is sufficient for making four-inch by six-inch prints, while eight megapixels can create high-quality 8-by-10 pictures.
Calculation
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The total number of megapixels is found by multiplying the megapixels along the length and the megapixels along the width of the camera sensor or screen.
Warning
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The more megapixels your camera has, the more memory each picture will take up. However, with the decreasing cost of memory, this is usually not a problem.
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References
- Photo Credit Thomas Northcut/Photodisc/Getty Images
