data representation: images

data representation: images

1. the more pixels there are in an image, the more blurry it is and the less detail it has.

2. each pixel is represented as 0 or 1.

   • images with a lower density are pixelated and have a lower resolution.
     • pictures could have a lower resolution and worse quality if the person zoomed in and got closer to the pixels.

3. image quality is affected by the resolution of the image.

   • the resolution of an image is a way of describing how tightly packed the pixels are.

4. pixels are the smallest element shown on a screen.

   • the 3 colours that make up a pixel are red, green and blue.
   • having a value of 0 means a pixels colour is off, whilst having a value of 255 means the colour is fully on.
     • the pixels are split into sub pixels represented by RGB values.
       • pixels can also be represented by hex values such as FFFFFF for white and 000000 for black