What is a pixel? This question can catch us somewhat by surprise ... Belongs to this type of issues that children from 3 to 11 years often put on the table for adults to seek resources to help them explain that, already for many years, left to wonder. In Tecnolab classes in Citilab , I propose a little exercise that helps boys and girls in the group to answer this question for themselves. Defining just what is the definition. Will you try?
divided into groups of three. Each member of one group receives a picture to color or fill. Interestingly, each group has its own drawing, but that the three members of the same group have the same.
Each person in the trio will perform a different action on the drawing. One member used Plastidecor colored pencils or paint your picture. Using the same colors, a second person puts gomets square (small dehesa color) very small. Finally, the third member of the group will use gomets much larger to color the same picture and following the same pattern. With patience, everyone is working on the drawing until finally ... Got it! What happened to the image? What about the definition? We note that the picture painted in colors represent reality quite well, has great definition and details easily observed. In the second case, there are pieces in which the design is pretty well respected, but the borders and boundaries are not always distinguishable. We have lost definition and have built the image from a square that we observe in reality. Finally, the third picture is very diffuse, almost difficult to understand and many details have been lost. We continue to see these single-color squares that we see when we look at the world and this time are much higher. What are those squares? What are representing gomets in this activity?
The pixels! Yes! All the boys and girls Tecnolab reach that same conclusion, and moreover, a vetch finished the most artistic, are able to define the pixels.
A pixel or pixel (English acronym picture element, "picture element") is the smallest unit homogeneous color as part of a digital image , whether in a photograph, video frame or chart .
They do not use these words, but they say that the pixels are squares of one color that form the images displayed on computer screens or on some TVs. They also note that the definition of the images depends on the size of the pixels. If these are small enough, the image will have high definition and we will see precise and clear. If the pixels are too big, lose definition and clearly observe strange squares which are precisely the pixels! Once
seen this paper, it is interesting to contrast it with the digital experience. Choose any image zoomed to our well-known on-screen pixels.
seen this paper, it is interesting to contrast it with the digital experience. Choose any image zoomed to our well-known on-screen pixels.
Done! Defined! and Understood! In the latest edition of Tecnolab, Andrea and Cristina explained their first day of class in our Blog Tecnolab Tecnolabbers . During that first hour ICT learned what they were and what were the pixels. In my opinion, your post reflects your experience much better than millions of my explanations ... and how ultimately, who matters is the user and they are part of the protagonists of Tecnolab, I recommend a visit.
