Digital Data: Storing Images & Popular File types

How many pixels per inch (PPI) is standard for high-quality prints?

300 pixels per inch.

How do pixels relate to printed image quality?

More pixels per inch result in clearer printed images.

What does colour depth refer to?

The number of bits per pixel that determines the range of colors.

What does a higher colour depth mean for an image?

It allows for more colors and increases file size.

How many colours does a 2-bit colour depth allow?

Four possible colors.

How do you calculate image file size?

Multiply height, width, and color depth of the image.

What is the file size of a 200x400 image with a 16-bit colour depth?

Approximately 160KB.

How does resolution affect image quality?

Higher resolution has more pixels, giving better quality.

What does "low resolution" mean for an image?

Fewer pixels, leading to a blocky or pixelated appearance.

What is the best format for digital photos?

JPG/JPEG.

What format is suitable for high-detail, uncompressed images?

TIFF.

Which format supports transparency and compression?

PNG.

What format is commonly used for logos with limited colors?

GIF.