Understanding Digital Images and Formats

Front

What does the saying “a picture’s worth a thousand words” suggest?

Back

Images can quickly communicate complex ideas

Front

Why did advertisers popularize the saying in the early 20th century?

Back

To highlight the importance of images in communication

Front

What is the most basic element in a digital image?

Back

Pixel

Front

What does resolution refer to?

Back

Number of pixels in an image

Front

Which factor increases both image resolution and file size?

Back

Having more pixels

Front

What does “compression” do to an image file?

Back

Reduces file size

Front

Which type of compression permanently removes some detail?

Back

Lossy

Front

What does “lossless” compression mean?

Back

No details are lost

Front

Why did old video games look “pixelated”?

Back

File sizes had to stay small

Front

What is required for the best image quality on screen?

Back

High resolution image and HD screen