Agent skill

Image Enhance

by ZJU-REAL in ZJU-REAL/Easel

图片增强 / 放大 / 变清晰:高质量放大(Lanczos 2x/4x)+ 去噪 + 锐化 + 自动对比度/饱和度,改善偏糊、偏暗、噪点多的图片。当用户说 图片放大、图片变清晰、提高清晰度、图片增强、去噪点、锐化、图片太糊了、放大到高清、提升画质、优化图片、图片调亮调色 时使用。基于 shared/scripts/imgenhance.py(Pillow+OpenCV)。注意:这是传统增强非…

Apache-2.0Auto-check passedMedia & Creative

Install Image Enhance

skills CLI
$ npx skills add ZJU-REAL/Easel --skill image-enhance -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install ZJU-REAL/Easel image-enhance --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/ZJU-REAL/Easel.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/openclaw/image-enhance .claude/skills/image-enhance && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
image-enhance
GitHub stars
3.4k
Token cost
~433 tokens
SKILL.md length
81 words
Files
1
Skills in repo
114
Repo updated
First seen
Licence
Apache-2.0

At a glance

图片增强 / 放大 / 变清晰:高质量放大(Lanczos 2x/4x)+ 去噪 + 锐化 + 自动对比度/饱和度,改善偏糊、偏暗、噪点多的图片。当用户说 图片放大、图片变清晰、提高清晰度、图片增强、去噪点、锐化、图片太糊了、放大到高清、提升画质、优化图片、图片调亮调色 时使用。基于 shared/scripts/imgenhance.py(Pillow+OpenCV)。注意:这是传统增强非…

  • Works in 4 steps: 先设定预期:这是"改善"不是"重绘",糊得厉害的图别承诺变高清。 → 有噪点务必 --denoise(放大前执行,避免噪点被放大)。 → 放大统一用 Lanczos 高质量重采样;倍数别盲目开 4x(文件暴涨且无新细节)。 → …
  • Tasks that involve Image generation
  • SKILL.md covers 输入, 输出(outputs/主题名/), 执行步骤 and 调参, plus 2 more sections
  • Calls python

What it does

Image Enhance is an agent skill from ZJU-REAL/Easel. 图片增强 / 放大 / 变清晰:高质量放大(Lanczos 2x/4x)+ 去噪 + 锐化 + 自动对比度/饱和度,改善偏糊、偏暗、噪点多的图片。当用户说 图片放大、图片变清晰、提高清晰度、图片增强、去噪点、锐化、图片太糊了、放大到高清、提升画质、优化图片、图片调亮调色 时使用。基于 shared/scripts/imgenhance.py(Pillow+OpenCV)。注意:这是传统增强非 AI 超分,凭空生成细节请用 ai-image-gen 图生图。与 image-editing 区别:那个做缩放/裁切/水印等常规操作,本 SKILL 专做画质提升。

Its SKILL.md is about 430 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Media & Creative, covering Image generation and Image editing. It works with OpenCV. The repository describes itself as: An open-source AI agent for social media — discover trends, create content, publish everywhere, and learn what works across Xiaohongshu, Douyin, Zhihu, Bilibili, and more.🎨一个开源的… The licence is Apache-2.0.

When your agent uses it

  • Tasks that involve Image generation
  • Tasks that involve Image editing

Example prompts

  • “/image-enhance”

Requirements

  • Python 3

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. 先设定预期:这是"改善"不是"重绘",糊得厉害的图别承诺变高清。
  2. 有噪点务必 --denoise(放大前执行,避免噪点被放大)。
  3. 放大统一用 Lanczos 高质量重采样;倍数别盲目开 4x(文件暴涨且无新细节)。
  4. 产物统一进 outputs/主题名/。

What it can do on your machine

Read from SKILL.md and the folder at commit 278f420. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • python

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Image Enhance loads about 433 tokens when it runs. Until then it costs about 74 tokens; SKILL.md has 81 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~74
When it runs · the whole SKILL.md, loaded when a task matches
~433

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from ZJU-REAL/Easel at commit 278f420, republished under its Apache-2.0 licence (© ZJU-REAL). 81 words, ~433 tokens.

Download SKILL.mdSave it as .claude/skills/image-enhance/SKILL.md (or your agent's skills folder).
name
image-enhance
description
图片增强 / 放大 / 变清晰:高质量放大(Lanczos 2x/4x)+ 去噪 + 锐化 + 自动对比度/饱和度,改善偏糊、偏暗、噪点多的图片。当用户说 图片放大、图片变清晰、提高清晰度、图片增强、去噪点、锐化、图片太糊了、放大到高清、提升画质、优化图片、图片调亮调色 时使用。基于 shared/scripts/img_enhance.py(Pillow+OpenCV)。注意:这是传统增强非 AI 超分,凭空生成细节请用 ai-image-gen 图生图。与 image-editing 区别:那个做缩放/裁切/水印等常规操作,本 SKILL 专做画质提升。
layer
produce

图片增强 / 放大

高质量放大 + 去噪 + 锐化 + 调色,改善偏糊/偏暗/有噪点的图片。走 skills/shared/scripts/img_enhance.py。

⚠️ 传统确定性增强,不是 AI 超分——能改善轻中度模糊/噪点,但无法凭空造细节。 要 AI 超分/重绘用 ai-image-gen(图生图)。常规缩放/裁切/压缩/水印见 image-editing。

输入

字段必填说明
图片是要增强的图片(没给就问)
放大倍数否默认 2 倍;1 表示只增强不放大
增强项否一键 --auto,或分别指定去噪/锐化/对比/饱和

输出(outputs/主题名/)

  • 增强后的图片
  • 报告:原尺寸→新尺寸、执行了哪些增强

执行步骤

脚本路径(相对项目根):skills/shared/scripts/img_enhance.py(enhance -h 看参数)。

bash
# 一键增强 + 2 倍放大(最常用)
python skills/shared/scripts/img_enhance.py enhance -i blurry.jpg \
  -o outputs/主题名/out.jpg --scale 2 --auto

# 噪点多的照片:去噪 + 4 倍 + 强锐化
python skills/shared/scripts/img_enhance.py enhance -i photo.jpg \
  -o outputs/主题名/out.png --scale 4 --denoise --sharpen 1.5

# 只调色不放大(偏暗/发灰的图)
python skills/shared/scripts/img_enhance.py enhance -i img.jpg \
  -o outputs/主题名/out.jpg --scale 1 --auto

调参

  • 还是糊:本工具无法造细节,改用 ai-image-gen 图生图超分。
  • 锐化过头有噪点/白边:降低 --sharpen(默认 auto=1.0)。
  • 颜色过饱和:--saturation 1.0 关闭增色,或调低。
  • 噪点被放大:加 --denoise(放大前先去噪)。

规则

  1. 先设定预期:这是"改善"不是"重绘",糊得厉害的图别承诺变高清。
  2. 有噪点务必 --denoise(放大前执行,避免噪点被放大)。
  3. 放大统一用 Lanczos 高质量重采样;倍数别盲目开 4x(文件暴涨且无新细节)。
  4. 产物统一进 outputs/主题名/。

参考来源

Lanczos 重采样 + UnsharpMask 锐化 + OpenCV fastNlMeans 去噪 + 自动对比度,是无 GPU 的传统 画质提升组合。真正的超分辨率(Real-ESRGAN 等)需 GPU/模型,此处以 ai-image-gen 图生图替代。

© ZJU-REAL, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/openclaw/image-enhance of ZJU-REAL/Easel.

Open the folder on GitHubat commit 278f420

Compare with similar skills

Image Enhance next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Image Enhance compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Image Enhance this skillZJU-REAL/Easel3.4k—~433Automated safety check: PassApache-2.0
AI Image Generation and Editingzhayujie/CowAgent47k—~1.3kAutomated safety check: PassMIT
Generate Imageynulihao/AgentSkillOS61810 repos~1.7kAutomated safety check: NotesNone
GPT Image Generation CLIwuyoscar/GPT-Image2-Skill5.7k—~2.5kAutomated safety check: NotesMIT
BlockRun Image GenerationBlockRunAI/ClawRouter6.6k—~2.1kAutomated safety check: PassMIT
Native Transparent ImagegenZSeven-W/craft-skills2251 repos~1.1kAutomated safety check: PassApache-2.0

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Works with

Questions about Image Enhance

What does Image Enhance do?

图片增强 / 放大 / 变清晰:高质量放大(Lanczos 2x/4x)+ 去噪 + 锐化 + 自动对比度/饱和度,改善偏糊、偏暗、噪点多的图片。当用户说 图片放大、图片变清晰、提高清晰度、图片增强、去噪点、锐化、图片太糊了、放大到高清、提升画质、优化图片、图片调亮调色 时使用。基于 shared/scripts/imgenhance.py(Pillow+OpenCV)。注意:这是传统增强非…. Image Enhance is an agent skill from ZJU-REAL/Easel.

When should I use Image Enhance?

Image Enhance fits situations like: tasks that involve Image generation; tasks that involve Image editing.

How do I install Image Enhance in Claude Code?

Run `npx skills add ZJU-REAL/Easel --skill image-enhance -a claude-code`. Or copy the skill folder (skills/openclaw/image-enhance in ZJU-REAL/Easel) into .claude/skills/image-enhance in your project. Claude Code loads it when a task matches its description.

How do I install Image Enhance in Codex?

Run `npx skills add ZJU-REAL/Easel --skill image-enhance -a codex`. Or copy the skill folder (skills/openclaw/image-enhance in ZJU-REAL/Easel) into .agents/skills/image-enhance in your project. Codex loads it when a task matches its description.

Can I use Image Enhance in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ZJU-REAL/Easel --skill image-enhance -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/image-enhance, .gemini/skills/image-enhance, .github/skills/image-enhance and .opencode/skills/image-enhance in your project.

What does Image Enhance need to run?

Going by SKILL.md and its folder, Image Enhance needs the command-line tools its instructions call (python). Our summary lists: Python 3.

Does Image Enhance access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Image Enhance safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Image Enhance use?

Image Enhance is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Image Enhance use?

About 433 tokens (SKILL.md is roughly 1.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Image Enhance?

Skills that share tags, products or a category with Image Enhance: AI Image Generation and Editing (zhayujie/CowAgent, 47k stars), Generate Image (ynulihao/AgentSkillOS, 618 stars), GPT Image Generation CLI (wuyoscar/GPT-Image2-Skill, 5.7k stars) and BlockRun Image Generation (BlockRunAI/ClawRouter, 6.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Image Enhance?

ZJU-REAL (a GitHub organization) maintains it in ZJU-REAL/Easel, which has 3,376 GitHub stars. The repository holds 114 skills in this directory. The repository was last updated on October 9, 2026.

Source: ZJU-REAL/Easel on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.