- Aspect ratio is a ratio of its sizes in different dimensions.
- Aspect ratio of an image describes the proportional relationship between its width and height.
- For an W:H is the aspect ratio .From that width is divided into W units and height is divided into H units.
Different Aspect Ratio Standards:
4:3 Standard:
- It is for standard televisions in 1940's and 1950's.
- The majority of analog cables channels still broadcast in 4:3.
16:9 Standard:
- The widescreen format of the 16:9 aspect ratio allows users to view a bigger picture when compare to the 4:3 aspect ratio.
- The 16:9 aspect ratio also enhances the quality of image by allowing for bolder backdrops and scenery.
21:9 Standards:
- Movies are usually filmed with a ratio of 21:9.
- In this aspect ratio the image quality is high compare to 16:9 aspect ratio.
Obtaining height, width and area of the screen:
Where,
d = diagonal length
r = ratio
h = height
w = width
A = area
Uses of Aspect Ratio Standards:
- Image aspect ratio
- Display aspect ratio
- Paper size
- Motion picture film formats
- Pixel aspect ratio
- Wing aspect ratio of an aircraft or bird.
Examples:
Advantages:
- Increase images quality.
- By using aspect ratio aircraft wings are designed.
- In tires the aspect ratio improved braking.
Disadvantages:
- Aspect ratio increase the cost of things also increase.
My note images:
