OCR J277 Paper 1 · 1.2.4c

Data Storage: Images

How pixel colour, resolution, and metadata affect image file size and quality

Revision notes

• c.ii.Calculate file sizes of image
• i.Images: How an image is represented as a series of pixels, represented in binary
• j.Images: Metadata
• k.Images: The effect of colour depth and resolution on:quality of the image, size of an image file