Understanding Images in Computer Science

The video tutorial explains how computers store and process images using pixels, resolution, and color depth. It covers how increasing resolution and color depth can improve image quality but also increase file size. The concept of metadata is introduced, explaining how it provides essential information about images, such as resolution and color depth, to help computers render them correctly. The video concludes with a call to action for viewers to engage with the content.

What is the basic unit that makes up an image?

• Byte

• Bit

• Pixel

• Color

How does increasing the resolution of an image affect its quality and storage requirements?

• Decreases quality but increases storage

• Decreases quality and storage

• Increases quality and storage

• Increases quality but decreases storage

What does color depth refer to in an image?

• The number of pixels

• The size of the image

• The type of file

• The number of colors available

If an image has a color depth of 4, how many different colors can it represent?

• 16

• 8

• 4

• 2

What happens to the file size when you increase the color depth of an image?

• It decreases

• It remains the same

• It becomes unpredictable

• It increases

What is metadata in the context of images?

• Additional information about the image

• The resolution

• The number of pixels

• The color depth

Which of the following can be included in an image's metadata?

• Number of pixels

• File size

• Resolution and color depth

• Image quality

Why is metadata important for images?

• It changes the resolution

• It helps computers display the image correctly

• It reduces the file size

• It increases the number of colors

What is the downside of increasing both resolution and color depth?

• Reduced number of colors

• Lower resolution

• Increased file size

• Decreased image quality

Which of the following is NOT a component of an image's metadata?

• File type

• Pixel size

• Resolution

• Color depth