colourspace

• CURIE: gmeow:colourspace
• IRI: https://blackcatinformatics.ca/gmeow/colourspace
• Category: property
• Defined by: gmeow:slices/documents
• Box roles: RBox role (What is this?)

The colourspace reference frame in which this media object's pixel values are expressed — sRGB, Adobe RGB, CMYK, CIE XYZ, etc. A subproperty of gmeow:hasReferenceFrame (Principle 11). Multiple colourspace claims for the same image coexist as separate standpoint-indexed assertions (Principle 9), each attributable and confidence-weighted. Not declared FunctionalProperty in the logical core to avoid incorrect owl:sameAs inferences when merging standpoints; single-valued constraint is enforced by SHACL (sh:maxCount 1).

Structure

Property shape: object property; gmeow:MediaObject -> gmeow:ReferenceFrame Sub-property of: gmeow:hasReferenceFrame

Practical Pattern

Use gmeow:colourspace from gmeow:MediaObject to gmeow:ReferenceFrame when the relationship itself belongs in the native GMEOW graph.

Common Companion Terms

gmeow:hasReferenceFrame, gmeow:MediaObject, gmeow:ReferenceFrame

Usage Advice

Use when

• Use to declare the colourspace reference frame in which a media object's pixel values are expressed — sRGB, Adobe RGB, CMYK; the frame that satisfies gmeow:MediaObject's gmeow:requiresFrame declaration (Principle 11).

Avoid when

• Avoid leaving pixel values frameless (a value asserted without its frame is ill-formed) and avoid forcing one colourspace by making it functional — competing standpoint-indexed claims coexist; SHACL enforces single-valued, not OWL (Principle 9).

How to use

• Point the gmeow:MediaObject at a gmeow:ReferenceFrame via gmeow:colourspace (a gmeow:hasReferenceFrame subproperty); carry conflicting colourspace claims as separate attributable, confidence-weighted assertions.

Examples

• ex:photo gmeow:colourspace ex:sRGB.