Representing images in binary...
Representing Images in Binary
Changing the resolution can make a picture more pixelated if you lower the resolution, however, when you try to increase the resolution, it simply makes the image larger as the computer cannot improve the picture because it only sees the pixels as binary.
We would pick a lower resolution because pictures that have a higher resolution have a bigger file size than a lower resolution picture which means it will take up more file storage and, if it’s an internet image, the page it is on will take quicker to download if it is a picture with a lower resolution
Lower Resolution Picture (20ppi)
Higher Resolution Picture (150ppi)
Changing the colour depth is when you edit how many colours the computer uses when creating the image.
When you lower the colour depth to 4 (2-bit) than the image changes to have less colours which makes the image more distorted and its appearance is worse, on the other hand, increasing the colour depth to 256 (8-bit) makes the image clearer with more colours.