Through the term contrast, various issues can be referred to in our language.
Common uses of the term
When you want to give an account of the decidedly notable differences that exist between some people or things, the word contrast is used to express that situation, that is, contrast is the difference in intensity between a point in an image and the context in which is inserted, that is, with its surroundings, for example, a black point will definitely contrast against a white background or surroundings.
For this reason, when someone sets out to find a contrast between two things, to ensure that both are appreciated and do not go unnoticed, it is common to use colors that contrast with each other, such is the aforementioned case of white with black and vice versa.
Let's imagine a bit, if I have a black library on a dark wall, the library will not stand out far from it since it will be confused with that background of the same color, while, if we want the same to gain notoriety in that space, We will have to paint it white and there it will take center stage in the environment.
Also and in a totally different area, the word contrast is used to designate that mark of authenticity that is engraved on objects made of a material considered noble, such is the case of gold, silver.
Meanwhile, in terms of the television technology, the word contrast has a special significance and importance, since in this way it designates the relationship established between the maximum and minimum illumination of an image that appears on television.
Its use in the framework of opinions
On the other hand, when in a meeting, discussion or encounter different opinions are presented on the same issue, the term contrast is usually used to refer to that kind of comparison exercise that is and arises from the fact of presenting different ideas or solutions.
In the mass media, especially, it is common to use contrasts when you want to account for a reality, with the mission of making it more forceful and visible. For example, it is planned to carry out a report on the life of a soccer player today a world star but whose social origin is humble, so one of the angles from which it can be approached is precisely by showing the contrast of that simple origin compared to his present of recognition, fame and money.
The use of contrast in diagnostic medicine
And finally at the behest of medicine, more precisely of the diagnostic methods that have evolved so much in recent times thanks to advances in technology, is designated by the term of contrast to that radiologically opaque substance, which, once introduced into a person's body, allows it to be explored and viewed in a fantastic way, clinically speaking. Because precisely the objective of this special substance is to generate contrast once inside the body so that specialists can detect any anomaly or condition that without this "internal lighting" could never be appreciated.
There are many radiological studies that use this procedure, while in reproductive medicine we can find a very common one called hysterosalpingography. It is an X-ray of the uterus and fallopian tubes that is usually indicated to those women who seek and do not achieve pregnancy after a long time of searching for it, to find out if this is due to a blocked tube. A special ink is used in the study, for this reason it is called by contrast, to observe the female genital tract.
