Data Representation of Images

A bitmap image is made up of

• Pixels

• Colours

• Samples

• Characters

A Byte consists of this many bits

• 2

• 4

• 8

• 16

Which of the below would recreate an image with more pixels

• Decreasing the resolution

• Increasing the resolution

• Decreasing the bit-depth

• Increasing the bit-depth

A 1-bit image has this many colours

• 2

• 4

• 8

• 16

How many DPIs are needed for a standard on-screen presentation of a bitmap?

• 300dpi

• 150dpi

• 72dpi

• 50dpi

Which type of bit-depth has four colours

• 1-bit

• 2-bit

• 4-bit

• 8-bit

Which of the below would recreate an image with fewer colours

• Decreasing the resolution

• Increasing the resolution

• Decreasing the bit-depth

• Increasing the bit-depth

Bitmap file sizes are calculated by

• Resolution x Bit-Depth

• Bit-Depth / Resolution

• Resolution + Bit-Depth

• (Bit-Depth x Resolution)^n-bytes

Which of the below could let us know about the height and width of an image?

• Binary

• Resolution

• Bit-Depth

• Metadata

How many Pixels is a 10dpi bitmap made up of?

• 1

• 10

• 100

• 1000