1.2.6 Metadata

Images can contain a geographical location of where the picture was taken. This is stored in a special area of an image file called:

• Metadata
• File name.
• Compression area.
• Alpha-channel.

The following is true about metadata:

• It is data about data.
• It is corrupted data.
• It significantly increases file sizes.

Metadata doesn't contain the following:

• File name.
• Print dimensions.
• Colour depth.
• Camera settings for when the picture was taken.

The following is often stored in metadata:

• All of these.
• Colour depth
• Height and Width of an image
• Compression algorithm applied.

If image metadata is corrupted,

• The resulting picture is not displayed properly.
• It is easily fixed.
• Will not affect printing and displaying of the file.

Metadata is used in the following files:

• All of these.
• Images
• MP3 files
• Webpages

Image metadata will store the make of the camera that took the picture.

• True
• False

Metadata can be used to organise and search for images.

• True
• False

Image metada can present privacy risk.

• True
• False

Define what is meant by the term 'metadata'.

• Metadata is the smallest element of an image.
• Metadata is the number of bits used to store the colour of a pixel.
• Metadata refers to information stored about an image.
• Metadata is a lossy compression file format that allows for very compact file sizes.