Digital Image Resolution

A digital camera captures images at different "resolutions" such as 1024X768, 640X480, or 320X240. Resolution refers to the number of pixels in an image and typically is also identified by the width and height of the image. For example, an image that is 2048 pixels wide and 1536 pixels high (2048X1536) contains (multiply) 3,145,728 pixels (or 3.1 Megapixels).  You could call it a 2048X1536 or a 3.1 Megapixel image.  As the megapixels in your digital camera increase so does the possible maximum size image you can produce.

Most education quality digital microscopes allow the user to play “real time” video of the object being studied on their computer display screens at a resolution of 320x240. Captured images and video can be displayed at 640x480. Still images can be captured and saved to the computer at resolutions of between 320x240 to 1024x1280 depending on the digital microscope used.

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