GCSE DigiTech Unit 1.1 Digital Images

What are the two common types of digital images?

• Bitmap and Vector

• JPEG and PNG

• GIF and TIFF

• Raster and SVG

What does colour depth refer to?

• The number of pixels in an image

• The number of possible colours in each pixel

• The size of the image file

• The type of image format

What does each pixel in a digital image have the ability to store?

• A vector value

• A binary value

• A file format

• A resolution

What is the impact of increasing colour depth and resolution?

• Decreases file size

• Results in more pixel information and higher quality images

• Reduces the number of colours

• Makes images blurry

What is a disadvantage of increasing colour depth and resolution?

• Decreases image quality

• Increases the size of the file

• Reduces the number of pixels

• Limits the file format

A zoomed-in section of an image illustrates how an image is made up of a grid of what, each with a numerical value representing colour?

• Pixels

• Lines

• Shapes

• Layers

Which two common types of digital images are mentioned in the material?

• Bitmap and Vector

• JPEG and PNG

• Raster and GIF

• PDF and SVG

What are bitmap images commonly used for?

• Creating logos

• Photographs

• Animations

• Text documents

What are vector graphics commonly used to create?

• Photographs

• Logos

• Videos

• Audio files

What happens when a vector graphic is upscaled (enlarged)?

• It becomes blurry

• It reduces in quality

• It doesn’t reduce in quality

• It changes color