gemini-watermark-remove
移除 Google Gemini(Nano Banana)生成圖片中的浮水印，使用逆向 Alpha 混合演算法精確還原被覆蓋的像素
- Installs
- 39
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- Security
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/kevintsai1202/geminiwatermarkremoveskill --skill gemini-watermark-remove- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads gemini-watermark-remove automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Gemini 浮水印移除工具
移除 Google Gemini AI 生成圖片中的浮水印。完全在本地執行，無需上傳圖片至任何伺服器。
使用方式
方式一：npx（推薦）
# 直接執行，無需安裝
npx gemini-watermark-remove <圖片路徑>
# 範例
npx gemini-watermark-remove image.png
npx gemini-watermark-remove image.png --output clean.png
npx gemini-watermark-remove image.png --mode large --gain 1.5
方式二：Node.js（npx 失敗時使用）
若 npx 執行失敗，可改用 Node.js 直接執行腳本：
# 1. 先安裝相依套件
cd <skill目錄>
npm install
# 2. 執行腳本
node scripts/remove-watermark.js <圖片路徑>
# 範例
node scripts/remove-watermark.js image.png
node scripts/remove-watermark.js image.png --output clean.png
node scripts/remove-watermark.js image.png --mode large --gain 1.5
參數
| 參數 | 說明 | 預設值 |
|---|---|---|
-o, --output | 輸出檔案路徑 | {檔名}_clean.{副檔名} |
-m, --mode | 遮罩模式:auto, small, large | auto |
-g, --gain | Alpha 增益值 (1.0-3.0) | 1.0 |
批次處理
Get-ChildItem "*.png" | ForEach-Object { npx gemini-watermark-remove $_.FullName }
技術原理
逆向 Alpha 混合演算法：原始像素 = (當前像素 - α × 浮水印顏色) / (1 - α)
- ≤1024px: 48×48 遮罩，邊距 32px
- >1024px: 96×96 遮罩，邊距 64px
連結
- npm: https://www.npmjs.com/package/gemini-watermark-remove
- GitHub: https://github.com/kevintsai1202/GeminiWatermarkRemoveSkill
授權
MIT License
FAQ
What does the gemini-watermark-remove skill do?
移除 Google Gemini(Nano Banana)生成圖片中的浮水印，使用逆向 Alpha 混合演算法精確還原被覆蓋的像素
How do I install gemini-watermark-remove?
Run npx skills add https://github.com/kevintsai1202/geminiwatermarkremoveskill --skill gemini-watermark-remove in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/gemini-watermark-remove/ (personal) or .claude/skills/gemini-watermark-remove/ (project).
Which AI agents can use gemini-watermark-remove?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is gemini-watermark-remove safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains gemini-watermark-remove?
It is published by kevintsai1202 in kevintsai1202/geminiwatermarkremoveskill. It has 39 recorded installs.
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