gemini-watermark-remover

Name: gemini-watermark-remover
Author: rookie-ricardo

Remove visible Gemini AI watermarks from images using reverse alpha blending. Provides a Python CLI tool that strips the bottom-right Gemini watermark without requiring HTML or server-side components Uses pre-captured watermark alpha maps (48px and 96px variants) and reverse alpha blending to reconstruct the underlying image Supports any image format that Pillow can read and write, with output format inferred from file extension Includes detailed algorithm documentation covering detection rules, math, and known limitations for understanding or modifying the removal logic

INSTALLATION

npx skills add https://github.com/rookie-ricardo/erduo-skills --skill gemini-watermark-remover

Run in your project or agent environment. Adjust flags if your CLI version differs.

SKILL.md

Gemini Watermark Remover

Dependencies

Python 3.9+

Pillow (install with pip install -r requirements.txt)

Quick start

Install dependencies in the scripts folder:

cd skills/gemini-watermark-remover/scripts && pip install -r requirements.txt

Run the CLI:

python remove_watermark.py <input-image> <output-image>

CLI usage

Parameters:

input-image: path to the Gemini watermarked image

output-image: path for the cleaned image (format inferred from extension)

Example:

python remove_watermark.py ./in.png ./out.png

What this skill provides

scripts/remove_watermark.py: CLI entry point and core algorithm.

assets/bg_48.png, assets/bg_96.png: Pre-captured watermark alpha maps.

references/algorithm.md: Math, detection rules, and limits.

Workflow

Use remove_watermark.py for one-off processing.

If you need to adjust detection rules or alpha logic, read references/algorithm.md.

Notes

The script uses Pillow for image IO and per-pixel edits.

Output format is inferred from the output file extension by Pillow.