Digital Image Basics Quiz

What is the smallest element of a digital image?

• Pixel

• Byte

• Color channel

• Frame

How are digital images represented in computers?

• As sound waves

• As grids of values

• As text documents

• As videos

In the simplest encoding system, what does the value “0” represent?

• White (on)

• Black (off)

• Blue

• Red

In the simplest encoding system, what does the value “1” represent?

• Black (off)

• White (on)

• Transparent

• Red

What does RGB stand for in digital color encoding?

• Red, Green, Binary

• Red, Gray, Blue

• Red, Green, Blue

• Random Graphic Bits

What is the numeric range for each RGB color channel?

• 0–10

• 0–100

• 0–255

• 0–999

How many bits are used to represent one color channel in RGB?

• 4 bits

• 8 bits

• 16 bits

• 24 bits

How many total bits are used to represent a single RGB pixel?

• 8 bits

• 16 bits

• 24 bits

• 32 bits

Which of the following RGB values represents the color white?

• (0, 0, 0)

• (255, 255, 255)

• (255, 0, 0)

• (0, 255, 0)

Which of the following is the hexadecimal representation of the RGB color (156, 54, 255)?

• #36FF9C

• #9C36FF

• #FF369C

• #36FF00