gemini-image-watermark-remove
Remove watermarks from Gemini-generated images
Remove watermarks from Gemini-generated images
Gemini Watermark Remover
Remove the SynthID watermark from images generated by Google Gemini AI.
Credit: This skill is based on GeminiWatermarkRemoveSkill by Kevin Tsai.
Quick Start
npx gemini-image-watermark-remove image.png
Usage
# Basic usage
npx gemini-image-watermark-remove image.png
# Custom output path
npx gemini-image-watermark-remove image.png -o clean.png
# Force large mask mode
npx gemini-image-watermark-remove image.png -m large
# Adjust alpha gain (for stronger removal)
npx gemini-image-watermark-remove image.png -g 1.5
Options
| Option | Description | Default |
|---|---|---|
-o, --output |
Output file path | <name>_clean.<ext> |
-m, --mode |
Mask mode: auto, small, large | auto |
-g, --gain |
Alpha gain value (1.0-3.0) | 1.0 |
How It Works
Uses reverse alpha blending algorithm:
original_pixel = (current_pixel - α × watermark_color) / (1 - α)
Mask size is auto-detected based on image dimensions:
- Images ≤1024px: 48×48 mask, 32px margin
- Images >1024px: 96×96 mask, 64px margin
You Might Also Like
Related Skills
songsee
Generate spectrograms and feature-panel visualizations from audio with the songsee CLI.
moltbot
slack-gif-creator
Knowledge and utilities for creating animated GIFs optimized for Slack. Provides constraints, validation tools, and animation concepts. Use when users request animated GIFs for Slack like "make me a GIF of X doing Y for Slack."
anthropicsalgorithmic-art
Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.
anthropicsbrand-guidelines
Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual formatting, or company design standards apply.
anthropicstheme-factory
Toolkit for styling artifacts with a theme. These artifacts can be slides, docs, reportings, HTML landing pages, etc. There are 10 pre-set themes with colors/fonts that you can apply to any artifact that has been creating, or can generate a new theme on-the-fly.
anthropicscanvas-design
Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.
anthropics