The phrase "a certain visual" is correct and usable in written English.
It can be used when referring to a specific image or visual representation that is not explicitly defined or is somewhat ambiguous.
Example: "In the presentation, I want to include a certain visual that captures the essence of our brand."
Alternatives: "a specific image" or "a particular visual".
The contrasting techniques can have a certain visual snap.
There is a certain visual identity to the clusters, and a hint of cultural tension among them.
I could use voice and rhythm and work with the composers and use music to effect a certain visual image.
We watch the shows at lunch, and Les was eating coleslaw, and the maggots and the coleslaw had a certain visual similarity.
What he produces, exhausting and ultimately bewildering as it is, is not without a certain visual and conceptual brilliance, or, thankfully, a sense of humor.
If one is hallucinating and sees pink rats, one is having a certain visual sensation of rats of a certain colour, though there are no real rats present.
Besides a set of inherited reflexes that help them obtain nourishment and react to danger, newborns are equipped with a predilection for certain visual patterns, including that of the human face, and for certain sounds, including that of the human voice.
Design education can be described as a means to enhance certain visual skills in a prospective designer.
Charting is the branch of technical analysis that tries to predict price changes in a stock on the basis of certain visual patterns in a chart of its historical prices or volume data.
When we perceive an orange we have certain visual sensations which through our expectations we refer to a collection that includes not only these actual sensations but also the permanent possibilities that are there but which we are not sensing.
Their findings led to a better understanding of how to treat certain visual birth defects.
