Vision Cortex

This page is auto-generated from model configurations. Last updated: 2026-09-03.

This reference lists all available Vision Cortex vectorization models and their parameters. Use these parameter names when calling the Generation API.

• VTracer

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VTracer

Converts raster images to SVG format using VisionCortex VTracer with customizable vectorization parameters.

Model ID: model_visioncortex-vtracer

Capabilities: img2img

LLM Markdown: https://app.scenario.com/api/models/model_visioncortex-vtracer/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
image	file	Yes	-	-	-	-	Image to vectorize
presetName	string	No	poster	-	-	bw, poster, photo, custom	Preset configuration. When using a preset, custom parameters are ignored.
colorMode	string	No	color	-	-	color, binary, watershed	Color mode: ‘color’, ‘binary’ or ‘watershed’ (region-forming on the colour gradient; best for flat art). Only used with preset is Custom.
colorPrecision	number	No	6	1	8	-	Number of significant bits for RGB channels (1-8). Higher values preserve more color detail. Phoenix param: colorPrecision. Only used with preset is Custom.
layerDifference	number	No	16	0	255	-	Color difference between gradient layers (0-255). Phoenix param: layerDifference. Only used with preset is Custom.
watershedDetail	number	No	230	0	400	-	Region count dial for the watershed color mode (0-400, each +25 roughly doubles the regions; values above 255 suit gradient-heavy content, pair with Hierarchical Mode Stacked). Only used with preset is Custom and Color Mode is Watershed.
hierarchical	string	No	stacked	-	-	stacked, cutout	Hierarchical clustering mode: ‘stacked’ or ‘cutout’. Only used with preset is Custom.
mode	string	No	spline	-	-	spline, polygon, pixel, none	Curve fitting mode: ‘spline’ (smooth curves), ‘polygon’ (straight lines), ‘pixel’ (pixelated), or ‘none’. Only used with preset=‘custom’.
filterSpeckle	number	No	4	0	128	-	Discard patches smaller than X pixels. Only used with preset is Custom.
cornerThreshold	number	No	60	0	180	-	Minimum angle (degrees) to be considered a corner (0-180). Only used with preset is Custom.
lengthThreshold	number	No	4	3.5	10	-	Maximum segment length for curve smoothing (3.5-10). Only used with preset is Custom.
spliceThreshold	number	No	45	0	180	-	Minimum angle displacement for splines (0-180 degrees). Only used with preset is Custom.
simplify	number	No	0	0	10	-	Curve simplification tolerance in pixels (0 = unset). Around 1.0 roughly halves the SVG size with no visible change. Applies on top of any preset.
binaryThreshold	number	No	128	0	255	-	Luminance cutoff for binary mode (0-255): pixels darker than this become black. Applies to the Black and white preset and to Custom with Binary color mode.
adaptive	boolean	No	false	-	-	-	Binary mode: use adaptive (Bradley-Roth) thresholding instead of a fixed cutoff, for unevenly lit scans or photos of drawings.
colorPaletteSize	number	No	0	0	256	-	Quantize the output palette to at most this many colors (0 = unset, minimum 2). Applies on top of any preset.
colorPalette	string_array	No	-	-	-	-	Fixed list of hex colors (#RRGGBB); every region snaps to the nearest palette color. Applies on top of any preset.