Background Handling

AI segmentation separates the subject from the background. Can add an alpha channel, replace the background with a solid color or custom image, or apply balancing between foreground and background.

Example

Before

After

Parameters

Parameter	Section	Value	Default	Description
BGmode	Config	0 – 4	0	Mode selection (see below)
BGBalmode	Config	0 – 3	0	Balancing: 0 = off, 1 = to first, 2 = strict, 3 = to parameters
ReplacePath	Background	String	—	Path to a replacement background image (mode 3)
backgroundR	Background	0 – 255	255	Red component for solid-color replacement
backgroundG	Background	0 – 255	255	Green component for solid-color replacement
backgroundB	Background	0 – 255	255	Blue component for solid-color replacement
balanceH	Background	-1.0 – 1.0	0.0	Hue balance adjustment
balanceS	Background	-1.0 – 1.0	0.0	Saturation balance adjustment
balanceV	Background	-1.0 – 1.0	0.0	Value balance adjustment

Modes

Value	Description
0 — Off	No background handling
1 — Alpha channel	Background made transparent
2 — Solid color replacement	Background replaced with backgroundR/G/B
3 — Image replacement	Foreground composited onto ReplacePath
4 — Alpha + solid color	Pre-composited RGBA

Recommended: Leave off (mode 0) for standard enhancement. Enable only for cut-outs or background replacement — Mode 1 for transparency, Mode 2 for a solid studio backdrop.

Output format: Save as PNG or TIFF to preserve transparency. JPEG does not support alpha — modes 1 and 4 require a transparency-capable format.