Transforming Color Science: Converting Cube LUTs to XMP In the world of digital color grading and photo editing, the Cube (.cube) and XMP (.xmp) formats are the two primary languages spoken by professional software. While both serve the goal of altering the aesthetic of an image, they function in fundamentally different ways. Converting a Cube LUT (Look-Up Table) to an XMP profile is more than a simple file change; it is a bridge between the world of cinema and the world of photography. Understanding the Formats
Steps:
# Dimensions dims = ET.SubElement(desc, f"NS['cube']dimensions") seq = ET.SubElement(dims, f"NS['rdf']Seq") for dim in cube.get("dimensions", []): li = ET.SubElement(seq, f"NS['rdf']li") li.text = dimdef convert_cube_to_xmp(cube): NS = "x": "adobe:ns:meta/", "rdf": "http://www.w3.org/1999/02/22-rdf-syntax-ns#", "dc": "http://purl.org/dc/elements/1.1/", "cube": "http://example.com/cube/1.0/" convert-cube-to-xmp
Embed into Target File
Use exiftool (command line) to write XMP: Transforming Color Science: Converting Cube LUTs to XMP
The "Convert-Cube-to-XMP" workflow is essential for brand consistency. A filmmaker who wants their promotional stills to match their color-graded footage cannot simply rely on manual adjustments. By converting their specific film LUTs into XMP profiles, they ensure that the visual identity remains identical across all mediums. Extract size (N), domain min/max, and table values
Parse .cube file