This document provides an overview of several theories of visual communication that are important for designers to understand when working with digital images. It discusses gestalt theory and how it explains how humans perceive visual grouping and patterns. Constructivism theory examines how viewers assemble images through a series of eye movements. Ecological theory posits that perception is directly based on environmental stimuli without additional cognitive processing. Semiotics theory analyzes how signs acquire meaning based on their iconographic, indexical, or symbolic nature. Cognitive theory explains how past memories influence visual interpretation. Compositional theories like the golden ratio and rule of thirds provide principles for creating balanced designs. The document concludes by outlining an assessment task applying these theories to photo media analysis.
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3. WHY THE THEORIES?
• Our world is full of visuals. Visuals are an essential and expected part of the
digital world too. Visual communication is communication through images and
communication of ideas and information. Thus the study of the theories of
visual communication is an absolute must us designers. When designers take,
edit pictures or create digital images they cannot capture the entire view in
their frame. They must select a part and compose that aesthetically to appear
in the frame available to them. The knowledge and understanding of the
theories of visual communication helps to do this proficiently and artistically.
4. VISUAL COMMUNICATION THEORIES
There are 2 types of theories in visual communication:
• Sensual Theories are raw data from nerves transmitted to brain.
• Gestalt Theory
• Constructivism Theory
• Ecological Theory
• Perceptual Theories are meanings concluded after the stimuli are received.
• Semiotics Theory
• Cognitive Theory
5. GESTALT IS A GERMAN WORD WHICH MEANS
"UNIFIED WHOLE".
6. GESTALT THEORY
• In 1910, psychologist Max Wertheimer had an insight when he observed a series of
lights flashing on and off at a railroad crossing. It was similar to how the lights
encircling a movie theatre marquee flash on and off. Wertheimer’s observation was
that we perceive motion when there is nothing more than a rapid sequence of
individual sensory events such as a series of lights flashing in sequence.
• We visually and psychologically attempt to make order out of chaos, to create
harmony or structure from seemingly disconnected bits of information.
• This observation led to a set of principles about how we visually perceive objects.
7. Similarity
• Similarity refers to groupings by number of characteristics can be similar:
colour, shape, size, texture, etc. Thud when a viewer sees these similar
characteristics, they perceive the elements to be related due to the shared
characteristics.
GESTALT THEORY – LAWS OF GROUPING
8. SIMILARITY
The example above (containing 11 distinct objects) appears
as single unit because all of the shapes have similarity.
9. Continuation
• Continuance is the principle that once you start looking in a direction, you’ll
continue to look in that direction until something significant catches your eye.
GESTALT THEORY – LAWS OF GROUPING
10. CONTINUATION
Continuation occurs in the example above, because the viewer's eye will
naturally follow a line or curve. The smooth flowing crossbar of the "H"
leads the eye directly to the maple leaf.
11. Closure
• Closure occurs when an object is incomplete or a space is not completely
enclosed. If enough of the shape is indicated, people perceive the whole by
filling in the missing information.
GESTALT THEORY – LAWS OF GROUPING
13. Proximity
• Proximity occurs when elements are placed close together. They tend to be
perceived as a group.
GESTALT THEORY – LAWS OF GROUPING
14. PROXIMITY
The nine squares above are placed
without proximity. They are perceived as
separate shapes.
When the squares are grouped in
close proximity, unity occurs. Grouping
can be achieved by colour, shape,
size, tone, physical attributes etc.
15. Figure and Ground
• The eye differentiates an object form its surrounding area. a form, silhouette,
or shape is naturally perceived as figure (object), while the surrounding area
is perceived as ground (background). This principle shows our perceptual
tendency to separate whole figures from their backgrounds based on one or
more of a number of possible variables, such as contrast, color, size, etc.
GESTALT THEORY – LAWS OF GROUPING
17. CONSTRUCTIVISM THEORY
• Julian Hochberg, a psychology professor at Columbia University found that
human eyes constantly in motion as they scan an image. He came up with the
Constructivism Theory to explain “eye-fixations” as a way for viewers to make
sense of their own perceptions. In his experiments, Hochberg used eye tracking
machines to monitor what how the participants looked at an image. In the
study, by using graphic images, it was found that viewers found the largest
picture on a page first, and then looked the headline for the story.
18. • When we look at anything, we have to piece it together. We do this through a
series of rapid eye movements that assemble a blueprint of what we’re
looking at, while at the same time comparing the results to memory and past
associations. So, in effect, we construct images out of many narrowly focused
observations. Thus the Constructivism Theory helps to understand exactly how
certain visual cues are noticed and how others are not noticed.
CONSTRUCTIVISM THEORY
19. ECOLOGICAL THEORY
• This theory was founded by James J. Gibson, an American psychologist. Gibson
challenged the idea that the nervous system actively constructs conscious visual
perception and instead promoted ecological psychology, in which the mind directly
perceives environmental stimuli without additional cognitive construction or processing.
Gibson developed what he called an “ecological approach” to the study of visual
perception, according to which humans perceive their environments directly, without
mediation by cognitive processes or by mental entities such as sense-data. This idea
was radical because it contradicted a centuries-old model of the origins of human
knowledge. As Gibson himself put it, “The old idea that sensory inputs are converted
into perceptions by operations of the mind is rejected.”
20. ECOLOGICAL THEORY
• We interpret what we see through spatial properties in the environment:
Surface layout, composition, lighting, motion, gradation, shape, size, solidity
and scale.
• Light is the way it reveals the three dimensionality of objects and scale, the
way objects diminish as they recede from us are the two most important
properties that we use to interpret space.
• Many perceptions about size and depth require no “mental calculation”
21. SEMIOTICS THEORY
• It is based on “semiosis,” the relationship between a sign, an object, and a meaning.
Signs is simply anything that stands for something else. There are 3 types of signs
with different speeds of comprehension:
• Iconic – some form similarity between signs and object it represents. Easiest to understand.
• Indexical – harder to interpret than icons, but still a logical connection to the thing they
represent. Examples: footprint, smoke, fingerprints, crumbs
• Symbolic – most abstract; no logical or representational connection to the thing they
represent. Examples: letters, words, numbers, colors, gestures, flags, costumes, music etc. They
are the most flexible and involve manipulation of universally understood signs.
• Semiotics emphasize the importance of symbolism in the visual perception and
communication.
22. COGNITIVE THEORY
• Cognitive theory suggests that perception is not just the result of visual stimuli,
but involves a series of mental processes in which we compare what we see to
our memories and use those to interpret and analyse. In other words, we
understand what we’re looking at most easily by comparing it to what we’re
familiar with. We are constantly on the lookout for things with which we’re
familiar. So we see, for example, faces in inanimate objects simply because
some features look vaguely like eyes and a mouth, such as the man in the
moon.
23. COGNITIVE THEORY
Comic strip characters might bear little resemblance to real
humans, yet we recognize them as such because they fit into our
preconceived images of basic human characteristics.
24. COMPOSITIONAL THEORIES
The Golden Ratio
• The Golden Ratio is a mathematical ratio that describes the perfectly
symmetrical relationship between two proportions. Approximately equal to a
1:1.61 ratio, the Golden Ratio can be illustrated using a Golden Rectangle
and is used to create pleasing, natural looking compositions in any design
work. The Renaissance artists of 15th and 16th Centuries used divine
proportion to create their paintings, architecture or sculptures.
26. COMPOSITIONAL THEORIES
The Rule of Thirds
• The rule of thirds is one of the most useful composition technique to produce images
which are more engaging and better balanced. The rule of thirds is applied by
aligning a subject with the guide lines and their intersection points, placing the
horizon on the top or bottom line or allowing linear features in the image to flow
from section to section. The idea is that an off-centre composition is more pleasing to
the eye and looks more natural than one where the subject is placed right in the
middle of the frame. It also encourages to make creative use of negative space, the
empty areas around the subject.
28. ASSESSMENT TASK 1
Visual Communication Theory & Photo Media
• Conduct a research project into Visual Communication Theories to establish
their role in the production of photo media. Refer to Assessment Task 1 brief
for details. If you have any questions/concerns, feel free to post them on the
Discussion Forum.
• Due Date: End of Week 4
• Weight: 30%