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Wondering why your digital photos are so large in file size, super slow to print or upload?

Aug 09 2016
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People wonder why their digital photos are so large in file size, super slow to print or upload, or why when they add it to a Powerpoint file, their Powerpoint file ends up being humongous. Let's start with some definitions. Megapixels or MP = amount of pixels in millions in a digital image also known as resolution. Resolution = dimensions of the image in pixels, so Width x Height. The higher the resolution, the more pixels fit in that image and the larger the image will be. So you're probably thinking that the higher the resolution the higher the quality of the image? Well, this is true but only in extreme cases, for example if you were printing out wall sized images or billboards. For a fixed size display, higher megapixels do not absolutely mean higher quality. For example, an average computer LCD screen at 19 inches runs at a resolution of 1600 x 1200 or about 2 megapixels. If you take a picture at 4 megapixels <2304 x 1728> and view them on your LCD that runs at 2 me ...