pixels Flashcards
What are pixels?
The individual elements that make up a digital image, arranged in a grid, also known as picture elements
Pixels are the smallest unit of a digital image and determine its clarity.
How is image resolution defined?
The number of pixels in a digital image
Higher resolution usually means better image quality.
What is colour depth?
The (fixed) number of binary digits used to represent each pixel’s colour
Colour depth affects the number of colours that can be represented in an image.
What are bitmap images?
Digital images that are formed using a binary representation of each pixel’s colour
Bitmap images can be large in file size due to the amount of pixel data.
What does RGB colour refer to?
Using combinations of red, green and blue light to represent different colours
RGB is a common colour model used in digital imaging.
What is representation size in the context of images?
How many bits are required to represent an image
This is a crucial factor in determining the file size of an image.
