Understanding Image File Size Calculation

The video tutorial explains how to calculate the file size of an image by considering its pixel dimensions and bit depth. It provides a formula to convert the calculated size into kilobytes. Two examples are given: one for a monochrome image with a 1-bit depth and another for an image with 16 colors and a 4-bit depth. The tutorial emphasizes understanding the conversion of colors to bit depth and how it affects file size.

What is the first step in calculating the file size of an image?

• Determine the number of colors used

• Establish the number of horizontal pixels

• Divide by 8 times 1024

• Convert the result to kilobytes

What does the term 'bit depth' refer to in image file size calculation?

• The size of the image in kilobytes

• The number of colors used

• The number of vertical pixels

• The number of horizontal pixels

In the example of a monochrome image, what is the bit depth?

• 8

• 1

• 4

• 2

How many colors does a monochrome image use?

• Two

• Four

• Sixteen

• Eight

What is the file size of the monochrome image with a bit depth of 1?

• 102.4 kilobytes

• 58.59 kilobytes

• 234.38 kilobytes

• 16 kilobytes

What is the bit depth when the image has 16 colors?

• 16

• 2

• 4

• 8

How does increasing the bit depth affect the file size of an image?

• It makes the file size unpredictable

• It increases the file size

• It has no effect on the file size

• It decreases the file size

What is the file size of the image with a bit depth of 4?

• 102.4 kilobytes

• 234.38 kilobytes

• 16 kilobytes

• 58.59 kilobytes

Why is it important to understand the formula for calculating image file size?

• To increase the number of pixels in an image

• To reduce the number of colors in an image

• To convert images to monochrome

• To predict how changes in bit depth affect file size