Digital Images

What does the term 'colour depth' refer to in digital imaging?

• The number of pixels per inch of an image

• The number of possible colours that can be displayed in each pixel

• The size of the digital image file

• The brightness of the image

What is the typical description of image resolution?

• The file size of the image

• The dimensions of the image in pixels

• The number of displayed pixels per inch of an image (PPI)

• The colour quality of the image

What is the impact of increasing both colour depth and resolution?

• Decreases the file size

• Reduces the image quality

• Increases the file size and improves image quality

• Makes the image easier to edit

What is a common advantage of the GIF file format?

• High colour depth

• Large file size

• Small file size

• High resolution

Which type of digital images is commonly used to create logos?

• Bitmap

• Vector

• JPEG

• PNG

What is the primary purpose of digital compression as described in the learning material?

• To enhance the color quality of images

• To reduce the size of a file

• To secure files from corruption

Which of the following is a characteristic of lossy compression?

• It allows data to be fully restored after compression

• It does not change the file size

• It results in some data loss during the compression process

• It is commonly used for text documents

What is a common file format that uses lossless compression?

• GIF

• BMP

• JPEG

• PNG

How does lossless compression affect the quality of a graphic?

• The quality is reduced

• The quality is enhanced

• The quality remains unchanged

• The quality fluctuates

What is an advantage of using lossy compression for files?

• It ensures data can be edited after compression

• It significantly reduces the file size

• It supports all types of media files

• It increases the security of the data