Image Representation Flashcards

The smallest unit of a digital image, representing a single point of colour.

Data about the image, such as dimensions, colour depth, and resolution, stored alongside the image file.

The number of bits used to represent the colour of a single pixel in an image.

The number of pixels in an image, typically measured as width × height in pixels.

Increasing colour depth increases the number of bits per pixel, resulting in larger file sizes.

Higher resolution increases the number of pixels, resulting in larger file sizes.

File size = colour depth × image width (px) × image height (px).

An image made up of pixels, where each pixel is individually defined.

Metadata adds extra information to the file but does not significantly affect the overall file size.

Reduces file size by removing or reducing data, with lossy compression removing some detail and lossless compression preserving all data.