![]() ![]() If you want to send this photo (or many photos) to a friend by e-mail, it will have to transfer 30 megabytes of data and it will take a while to upload it and a lot for the recipient to download it later. And having 10 million pixels means it takes 30 million bytes (or 30 megabytes) to store that photo (which is a lot of space!). When a camera or cellphone says it takes 10 megapixels photos, it means that each photo has 10 million pixels (mega = million). When an image is large, it may have millions of pixels, and that means storing all information for an image like that in a computer or any device will take millions of bytes. To store each of these pixels, 3 bytes (24 ones or zeros) are generally used. Images are composed by several dots called pixels, and each of them has a color, represented as a combination of three basic colors (red, green and blue). ![]()
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