A Lot of Dots
So, it all starts with a dot –
a pixel. White, cream, green, or red, however you want it!
We see a multitude of pixels every day – a photo, a funny video (essentially a sequence of images),
or a website –
Full HD or
4K. In fact, we encounter a matrix displayed successively,
with each element changing accordingly at a rate of
24,
30,
60, etc. frames per second.
A pixel is the basic unit of measurement for any digital graphic object:
It is abbreviated as
px or
p, and the multiple is known as
Mpx
(one
megapixel, or one million pixels).
For
example, we are shown televisions that have a certain parameter defined as
1080p
– that device has
1980 rows and
1080 columns (Full HD).
4K? It contains
3840 or
4096 (
approx. 4000) rows and
2160 columns, depending on the standard.
We have tested a little in Python, but programming plays an essential role in creating remarkable graphic effects
in the multimedia field. Can you imagine the work behind the game
Fortnite?
Advanced notions of geometry in space, complex calculation algorithms, user interaction, ...
large teams of programmers and graphic designers
play with these pixels, offering a fascinating universe.
An important aspect of pixels is that they are not just points of color, but they are also capable of rendering
variations in brightness and contrast, contributing to the clarity and realism of the image. Smaller and more
numerous pixels in a given area (
higher pixel density) offer
better resolution and
clearer images.
Technology is rapidly evolving, and with it, the ability to manipulate and optimize the use of pixels. For example,
OLED (
Organic
Light
Emitting
Diode) technology allows for individual control of each pixel to produce deep blacks
and high contrast, unlike traditional
LCD screens that use backlighting.
Every device we use daily, from smartphones to televisions and computers, relies on pixels to display information.
The quality of screens influences how we perceive and interact with the digital world, having a significant
impact on our visual experience and productivity.
Congratulations!
You have completed the lesson.
