Pixels are the smallest individual elements that make up an image on a computer screen. More pixels allow for more colors and higher image resolution. Resolution refers to the clarity and detail of an image, which is higher with more pixels. Aspect ratios describe the dimensional relationship between an image's width and height. Frame rate indicates the number of image frames displayed per second in videos and movies. Compression reduces video file sizes by removing some image data, which can impact quality.

1. Glossary
Pixel
Pixels are elements that make up a picture on a computer screen. This is the physical point
in a raster image. One colour in an image is made of 3 or components. The different colour
components can be made up of; red, green and blue or cyan, magenta, yellow and black. The
number of colours represented by a pixel depends on the number of bits per pixel (bpp). Each extra
bit doubles the amount of colours available. Below are a few different bpps;
1 bpp, 21
= 2 colours
2 bpp, 22
= 4 colours
3 bpp, 23
= 8 colours
8 bpp, 28
= 256 colors
16 bpp, 216
= 65,536 colours
24 bpp, 224
≈ 16.8 million colours
Resolution
This is a term that applies to digital raster images and other types of images. The higher the
resolution the clearer and the more detailed the image is. The higher the amount of pixels in an
image the higher the resolution is.
Screen ratios
Screen Ratios or Aspect Ratio describes the relationship between the width andits height. It is often
expressed as x: y. If a screen is 32 inches wide and 16 inches in height the ratio is 32:16.Traditional
television screens and computer monitors are 4:3. HD standard video is 16:9. Wide screen cinema
screens are usually 2.40:1.

2. Frame rate
Frame rate or Frame frequency is the rate in which a frame is shown. Frames can be found in
any imaging device which creates them consecutively. The motion picture industry uses 24 frames
per second (FPS) in their standard films. Often hand drawn animation use 24FPS. Frame rates in
video games can vary as there are many different types of games with different visuals and
storytelling methods. Video games where you would have to react fast have a high a FPS (30FPS-
100FPS). This all depends on the user’s software. Without having the right FPS the picture of the film
or video game can be blurred and might not be in sync with the sound.
Video formats
Video Formats come in all shapes, sizes and uses. They can carry different types of
information, such as; colour, display resolution and sound. Below are a few formats can be used
when making a video in Adobe’s Premiere Pro. The video format you choose corresponds with the
video format you used on your camera. When recording in HD, the format you would use would be
HDV. This format makes the video much clearer than normal video formats and the sound is more
fluent.
Compression
Compression of a video is a method in which the video’s data is reduced. This may happen
when data needs to be moved from one place to another or when a system’s memory is limited.
‘Lossy’ compressionis a data coding and algorithm which deletes some of the data but at the same
time the video or image is not noticeably changed. Sometimes the compression of a file is
noticeable. For example; when an image is compressed the pixels my get reduced meaning the
quality may not be as good.