Subject Masking
Subject masking is a digital photo editing technique used to isolate a portrait subject from its background, allowing selective adjustments to be applied independently to each area. By creating a precise mask around the subject—typically the person’s face and body—editors can modify exposure, color, contrast, and sharpness without affecting the surrounding areas. This selective approach enables more refined control over the final image and is a standard workflow in professional portrait retouching.
Creating the Mask
Masks can be created through several methods in Photoshop, ranging from manual selection tools to automated features. The quickest approach uses Photoshop’s Select Subject tool, which uses machine learning to detect and isolate portrait subjects automatically. More precise results can be achieved with manual selection tools like the Pen Tool or Quick Selection Brush.
Recent Enhancements in Camera Raw 18.4
Recent updates to Camera Raw have significantly streamlined subject isolation workflows. As detailed in Camera Raw 18.4 Updates: AI Masking, Gradients, and Workflow Enhancements, version 18.4 introduces:
- Improved AI Subject Masking: Enhanced accuracy in automatically detecting and isolating subjects, reducing the need for manual refinement in complex backgrounds.
- Bidirectional Linear Gradients: New gradient tools allow for more nuanced lighting adjustments that can complement subject masks.
- Vectorscope Integration: Improved color analysis tools help ensure that adjustments made via subject masks maintain color fidelity.
- Workflow Enhancements: General performance improvements and UI updates that speed up the masking process within the Camera Raw environment.