If images are epilinguistic systems—dependent on language for their interpretability—then the central question is no longer what images mean, but:
how do images and language operate together in the production of meaning?
This relation is often described loosely:
images “support” text
text “explains” images
the two “complement” each other
Such descriptions remain at the level of intuition. They do not specify the structure of the relation.
What is required is a more precise account:
image–language relations are forms of coupling between semiotic systems of unequal status.
The coupling must be analysed on these terms.
1. Against Parallelism
Multimodal frameworks typically treat image and language as parallel modes:
each contributes meaning
each can be analysed independently
their combination produces a composite message
This model assumes symmetry.
But the relation is not symmetrical.
language can function without images
images cannot function as stable meaning systems without language
To treat them as equivalent is to:
obscure the dependency that defines epilinguistic systems.
2. Co-Instantiation Reconsidered
In earlier analyses, co-instantiation described the coupling of:
music and lyrics
There, two distinct systems were:
simultaneously actualised
mutually constraining
neither reducible to the other
At first glance, image–language relations may appear similar.
But there is a critical difference:
in image–language coupling, one system (language) provides the conditions under which the other becomes interpretable.
This introduces asymmetry into co-instantiation.
3. Specification and Constraint
The primary role of language in this coupling is specification.
Language:
names what is depicted
identifies participants
specifies relations
situates the image within a context
This reduces the underdetermination of the image.
For example:
a photograph shows a group of people
a caption specifies: “workers protesting wage cuts”
The image provides:
configuration
Language provides:
interpretation
Together, they produce a constrained field of meaning.
4. Image as Field, Language as Operator
The relation can be stated more precisely:
the image provides a field of potential construal
language operates on that field to select and stabilise meaning
This is not mere addition.
Language:
does not simply add information
it reorganises the interpretability of the image
The same image, under different linguistic framings, becomes:
different events
different narratives
different meanings
5. Mutual Influence
Although the relation is asymmetrical, it is not one-directional.
Images can:
influence how language is construed
foreground certain interpretations
constrain plausible descriptions
For example:
a diagram may limit the range of valid explanations
a photograph may make certain descriptions untenable
Thus:
language constrains interpretation of the image
the image constrains the range within which language can operate
This is a mutual constraint under asymmetry.
6. Types of Coupling
Different configurations of image–language coupling can be observed:
Specification-dominant
language tightly constrains interpretation
e.g. labelled diagrams, technical images
Image-dominant (within limits)
image strongly shapes interpretation
language plays a minimal role
Loose coupling
image and text coexist with limited constraint
interpretation remains open
These are not different systems, but different configurations of the same relation.
7. Beyond Illustration
A persistent misconception is that images “illustrate” language.
This suggests:
language carries meaning
the image provides a visual example
But this is too weak.
In many cases:
the image is necessary for the construal
language alone would not suffice
meaning emerges through their interaction
The relation is not illustrative, but constitutive.
8. The Unit of Analysis
As in previous couplings, the unit must be redefined.
The relevant unit is not:
the image alone
the text alone
It is the coupled instance:
image and language co-actualised
under conditions of mutual constraint
Meaning resides at this level.
To separate the systems is to:
reintroduce underdetermination (image)
or lose configuration (language)
9. The Illusion of Visual Meaning (Revisited)
Image–language coupling explains a persistent illusion:
that images themselves carry meaning.
In practice:
images are almost always accompanied by language
interpretation is stabilised through this coupling
the role of language becomes invisible
The result:
meaning appears to reside in the image
This is a misrecognition of coupling.
10. A Fourth Specification
The argument can now be extended:
images become meaningful not in isolation, but through their coupling with language, which specifies and stabilises their interpretation.
Image–language coupling is not a simple combination of modes. It is a structured relation between:
an autonomous semiotic system
and a dependent one
Language:
enables interpretation
constrains meaning
organises construal
Images:
provide structured configurations
shape the field of possible interpretation
support and constrain linguistic operation
Together, they produce meaning—but not symmetrically, and not redundantly.
The next step is to examine how this relation has been theorised—and where those theories fall short.
It is there that the limits of existing accounts become most visible.
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