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13 May 2022 | Story Alicia Pienaar
Prof Vetrik
Prof Tomas Vetrik.

The Dean of the Faculty of Natural and Agricultural Sciences, Prof Danie Vermeulen, has the pleasure of inviting you to the inaugural lecture of Prof Tomas Vetrik. 

Topic: Extremal graph theory 

Event Details:
Date: 19 May 2022
Time: 17:30
Venue: Equitas Auditorium, UFS Bloemfontein Campus

RSVP:  Ms Marinda Venter on +27 51 401 2691 or email: VenterSM@ufs.ac.za  on or before Tuesday 17 May 2022.

Light refreshments will be served after the inaugural lecture. 


More about the speaker:

Tomas Vetrik received two scholarships from foreign countries during his PhD study. He spent one semester of his PhD study at the Vienna University of Technology in Austria, and two semesters at the Technion – Israel Institute of Technology. He was the only postgraduate student from Slovakia to receive a scholarship from the Israeli government in 2006. Tomas Vetrik joined the University of the Free State in 2014, after his postdoctoral research at the University of KwaZulu-Natal and working at the UniversityPretoria. His research area is graph theory. He is mainly focusing on the degree-diameter problem, graph indices, and metric dimension of graphs. He is an NRF-rated researcher and has produced about 75 research papers (approximately 25 of them as a single author).

Three PhD students and three MSc students have completed their studies under his supervision. He has presented seminar talks at 24 universities from 15 different countries. Please take note of our COVID-19 health and safety protocols (https://www.ufs.ac.za/return-to-campus ) when visiting the UFS campuses.


Please take note of our COVID-19 health and safety protocols (https://www.ufs.ac.za/return-to-campus ) when visiting the UFS campuses. 

News Archive

Photo manipulation in journalism: evil, crutch or lifebuoy?
2017-09-04

Description: Albe Grobbelaar Tags: Photo manipulation, Albe Grobbelaar, Albe, OJ Simpson, journalism, Department of Communication Science, Communication Science   

Albe Grobbelaar, veteran journalist and lecturer in the
Department of Communication Science at the UFS.
Photo: Rulanzen Martin


Since the 1800s the manipulation of photographs has been common practice, and who can forget the OJ Simpson Time magazine cover in 1994? Albe Grobbelaar, lecturer in the Department of Communication Science at the University of the Free State (UFS), asked in a special lecture on 18 August 2017 whether “Photo manipulation in Journalism” was an evil habit, a crutch or a lifebuoy.

“As a journalist I have always been interested in photography. And the principle of photo manipulation or tampering with photos, as we call it, is something that has interested me ever since,” Grobbelaar said. Photo manipulation is an area that has garnered many academic interest and is not a new trend but a practice that started in the 1830s when photos came into popular use. “It is not always done with ulterior motives, artists played with photographs to get unique effects.” Photo manipulation is not only to create fake news, but is sometimes used to convey novelty and create shock to news readers. 

Different viewpoints for different circumstances
He talked about the spectrum of viewpoints on photo manipulation. Some conservative journalism schools say photos should never be retouched while other feel it is fine to tamper with pictures. “What I tried to convey in the lecture was that one should consider different circumstances differently,” Grobbelaar said. As a journalist he believes that news photos should never be manipulated.

He mentioned the example of the mugshot of OJ Simpson that the Los Angeles Police Department released to the media. “Newsweek and Time both used the photo on their front pages, but Time deliberately darkened the picture so that OJ, a black man, would appear more sinister,” Grobbelaar said. It is, however, common practice in the fashion industry to retouch images that are used in fashion magazines. 

Use own judgment to validate photos
In the age of social media it has become easy to manipulate photos and which has been labelled fake news. “I would advise people to use their own judgment when validating the authenticity of photos,” Grobbelaar said. It is important to verify whether they are from a reliable news outlet.

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