Representing Images

Bitmap are made up of _______

• Shapes and lines

• Pixels

Another term for Bitmap graphic is?

• Raster Graphic

• Vector Graphic

• 3D Graphic

• Text

Are Bitmaps the only type of Image?

• Yes

• No

The smallest unit of data stored in an image file is called:

• Pixels
• Resolution
• Alpha
• Bitmap.

What Does Pixel Stand for?

• Image

• Plain Element

• Picture Element

• Picture/Images X-element Language

What is meant by the term 'colour depth'?

• Width and height of an image.

• A pixel in an image.

• Quality of the colour.

• Number of bits used to encode colour for each pixel.

Which 'bit' image would give the best picture quality?

• 24
• 4
• 8
• 2

What does 'resolution' mean?

• Something you listen to on a computer.
• The posh name for the keys on your keyboard.
• The number of pixels that make up a screen horizontally and vertically.
• Solving an argument.

An image is 50 pixels wide by 300 pixels high.  The colour depth is 2 bit, what is the file size in bytes?

• 3000 bytes
• 3250 bytes
• 3750 bytes
• 4000 bytes

What is the calculation to work out how many bytes a bitmap is?

• height * width * colour depth / 8

• height / width * colour depth / 8

• height - width + colour depth / 8

• height * width / colour depth / 8