Photo Editor Fill Tool

A targeted tool that applies flood fill to images, enabling fast color replacement and area-based edits for designers and developers.

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About This Tool

The Photo Editor Fill Tool performs region recoloring by propagating a replacement color from a specified seed point. It is designed for designers, developers, and content teams who need consistent color changes across raster assets while preserving edges and transparency. Conceptually, the tool identifies all connected pixels whose color stays within a user-defined tolerance of the seed color and recolors them to the target color. It supports non-destructive workflows by producing a new image layer or mask that can be adjusted or removed without altering the original pixels. Use cases include recoloring logos, icons, or UI elements to align with a brand palette, or batch-tuning images for a cohesive look across a project. The tool differentiates itself by offering precise control over connectivity (4- or 8-connected), tolerances, and edge handling, enabling clean, edge-preserving results suitable for both quick iterations and production pipelines. Core capabilities include deterministic results, optional opacity, and optional mask export for further compositing. This approach is compatible with typical raster workflows and common export formats.

How to Use

  1. Provide inputs: image, seed_point (x,y), target_color, tolerance.
  2. Configure optional settings: connectivity (4 or
  3. , anti_aliasing, opacity.
  4. Run fill calculation to replace colors within tolerance starting from seed.
  5. Inspect the resulting image or layer mask; adjust tolerance or connectivity if needed.
  6. Export the output in PNG or TIFF as required.
How to use photo editor fill tool

Frequently Asked Questions

Find Quick Answers

What inputs are required?
The image, seed_point coordinates, and target_color are required. Tolerance is optional and defaults to a moderate value; additional options include connectivity and opacity for finer control.
How is the filled region determined?
A flood-fill algorithm starts at the seed_point and includes neighboring pixels whose color distance to the seed color is within the tolerance. Connectivity can be 4- or 8-connected; edges may be anti-aliased if enabled.
What outputs can I expect?
A new RGBA image with the region recolored and, optionally, a binary mask. Outputs can be exported to PNG or TIFF, preserving transparency where applicable.
How does it handle transparency?
If the source image has alpha, the fill respects the alpha channel. You may apply opacity to the replacement color or generate a mask for non-destructive compositing.

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