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Basics of Images


              An image is a visual representation of any object. The term ‘image’ means a picture that has been created or
              stored in electronic form. It can be described in terms of vector graphics or raster graphics. An image comprises
              of a rectangular array of dots known as pixel. The size of the image is specified as width × height, in the number
              of pixels.



                                                             How are images stored
                                                                on a computer?



                                          How are images
                                        displayed on a screen?                   What are the
                                                                              components that make
                                                                                 up an image?












              Basics of Pixels

              Pixel stands for "Picture Element". It is the smallest unit of information in a digital image. These pixels are arranged
              in a 2-dimensional grid to form a complete image, video, text, or any visible thing on a digital platform. A pixel can
              have only one colour at a time. Colour of a pixel is determined by the number of bits it represents. The more pixels
              you have, the more closely the image resembles the original.
              In the image below, a specific section has been zoomed in multiple times to reveal its structure in individual
              pixel. Each pixel represents a small part of the image, and together, they combine to form the entire picture. As
              you examine the zoomed-in portion, you can observe how the arrangement of pixels approximates the original
              image. The higher the number of pixels in the image, the more detailed and closer it will appear to the actual
              representation.





























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