ImageMagick图像处理技能：批量调整大小、格式转换与元数据提取

image-manipulation-image-magick by github/awesome-copilot

7,600 周安装量

26,700 GitHub Stars

GitHub

安装命令

npx skills add https://github.com/github/awesome-copilot --skill image-manipulation-image-magick

开发生产力设计

🇨🇳中文介绍

使用 ImageMagick 进行图像处理

此技能支持在 Windows、Linux 和 macOS 系统上使用 ImageMagick 执行图像处理和操作任务。

何时使用此技能

当您需要执行以下操作时，请使用此技能：

调整图像大小（单张或批量）
获取图像尺寸和元数据
在不同图像格式之间转换
创建缩略图
为不同屏幕尺寸处理壁纸
根据特定条件批量处理多张图像

先决条件

系统已安装 ImageMagick
Windows：PowerShell 中 ImageMagick 可用作 magick（或位于 C:\Program Files\ImageMagick-*\magick.exe）
Linux/macOS：通过包管理器（apt、brew 等）安装了 ImageMagick 的 Bash

核心功能

1. 图像信息

获取图像尺寸（宽 x 高）
检索详细元数据（格式、色彩空间等）
识别图像格式

2. 图像调整大小

调整单张图像大小

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示例 0：解析 `magick` 可执行文件

PowerShell (Windows):

# 优先使用 PATH 上的 ImageMagick
$magick = (Get-Command magick -ErrorAction SilentlyContinue)?.Source

# 备用方案：Program Files 下的常见安装模式
if (-not $magick) {
    $magick = Get-ChildItem "C:\\Program Files\\ImageMagick-*\\magick.exe" -ErrorAction SilentlyContinue |
        Select-Object -First 1 -ExpandProperty FullName
}

if (-not $magick) {
    throw "未找到 ImageMagick。请安装它和/或将 'magick' 添加到 PATH。"
}

Bash (Linux/macOS):

# 检查 magick 是否在 PATH 上可用
if ! command -v magick &> /dev/null; then
    echo "未找到 ImageMagick。请使用您的包管理器安装："
    echo "  Ubuntu/Debian: sudo apt install imagemagick"
    echo "  macOS: brew install imagemagick"
    exit 1
fi

示例 1：获取图像尺寸

PowerShell (Windows):

# 对于单张图像
& $magick identify -format "%wx%h" path/to/image.jpg

# 对于多张图像
Get-ChildItem "path/to/images/*" | ForEach-Object { 
    $dimensions = & $magick identify -format "%f: %wx%h`n" $_.FullName
    Write-Host $dimensions 
}

Bash (Linux/macOS):

# 对于单张图像
magick identify -format "%wx%h" path/to/image.jpg

# 对于多张图像
for img in path/to/images/*; do
    magick identify -format "%f: %wx%h\n" "$img"
done

示例 2：调整图像大小

PowerShell (Windows):

# 调整单张图像大小
& $magick input.jpg -resize 427x240 output.jpg

# 批量调整图像大小
Get-ChildItem "path/to/images/*" | ForEach-Object { 
    & $magick $_.FullName -resize 427x240 "path/to/output/thumb_$($_.Name)"
}

Bash (Linux/macOS):

# 调整单张图像大小
magick input.jpg -resize 427x240 output.jpg

# 批量调整图像大小
for img in path/to/images/*; do
    filename=$(basename "$img")
    magick "$img" -resize 427x240 "path/to/output/thumb_$filename"
done

示例 3：获取详细的图像信息

PowerShell (Windows):

# 获取图像的详细信息
& $magick identify -verbose path/to/image.jpg

Bash (Linux/macOS):

# 获取图像的详细信息
magick identify -verbose path/to/image.jpg

示例 4：基于尺寸处理图像

PowerShell (Windows):

Get-ChildItem "path/to/images/*" | ForEach-Object { 
    $dimensions = & $magick identify -format "%w,%h" $_.FullName
    if ($dimensions) {
        $width,$height = $dimensions -split ','
        if ([int]$width -eq 2560 -or [int]$height -eq 1440) {
            Write-Host "正在处理 $($_.Name)"
            & $magick $_.FullName -resize 427x240 "path/to/output/thumb_$($_.Name)"
        }
    }
}

Bash (Linux/macOS):

for img in path/to/images/*; do
    dimensions=$(magick identify -format "%w,%h" "$img")
    if [[ -n "$dimensions" ]]; then
        width=$(echo "$dimensions" | cut -d',' -f1)
        height=$(echo "$dimensions" | cut -d',' -f2)
        if [[ "$width" -eq 2560 || "$height" -eq 1440 ]]; then
            filename=$(basename "$img")
            echo "正在处理 $filename"
            magick "$img" -resize 427x240 "path/to/output/thumb_$filename"
        fi
    fi
done

始终引用文件路径 - 对可能包含空格的文件路径使用引号
使用 & 操作符 (PowerShell) - 在 PowerShell 中使用 & 调用 magick 可执行文件
将路径存储在变量中 (PowerShell) - 将 ImageMagick 路径分配给 $magick 以使代码更清晰
在循环中包装 - 处理多个文件时，使用 ForEach-Object (PowerShell) 或 for 循环 (Bash)
首先验证尺寸 - 在处理前检查图像尺寸，以避免不必要的操作
使用适当的调整大小标志 - 考虑使用 ! 强制精确尺寸或使用 ^ 表示最小尺寸

模式：存储 ImageMagick 路径

$magick = (Get-Command magick).Source

模式：将尺寸作为变量获取

$dimensions = & $magick identify -format "%w,%h" $_.FullName
$width,$height = $dimensions -split ','

模式：条件处理

if ([int]$width -gt 1920) {
    & $magick $_.FullName -resize 1920x1080 $outputPath
}

模式：创建缩略图

& $magick $_.FullName -resize 427x240 "thumbnails/thumb_$($_.Name)"

模式：检查 ImageMagick 安装

command -v magick &> /dev/null || { echo "需要 ImageMagick"; exit 1; }

模式：将尺寸作为变量获取

dimensions=$(magick identify -format "%w,%h" "$img")
width=$(echo "$dimensions" | cut -d',' -f1)
height=$(echo "$dimensions" | cut -d',' -f2)

模式：条件处理

if [[ "$width" -gt 1920 ]]; then
    magick "$img" -resize 1920x1080 "$outputPath"
fi

模式：创建缩略图

filename=$(basename "$img")
magick "$img" -resize 427x240 "thumbnails/thumb_$filename"

大型批量操作可能占用大量内存
某些复杂操作可能需要额外的 ImageMagick 委托
在较旧的 Linux 系统上，使用 convert 而不是 magick（ImageMagick 6.x 与 7.x）

🇺🇸English

Image Manipulation with ImageMagick

This skill enables image processing and manipulation tasks using ImageMagick across Windows, Linux, and macOS systems.

When to Use This Skill

Use this skill when you need to:

Resize images (single or batch)
Get image dimensions and metadata
Convert between image formats
Create thumbnails
Process wallpapers for different screen sizes
Batch process multiple images with specific criteria

Prerequisites

ImageMagick installed on the system
Windows : PowerShell with ImageMagick available as magick (or at C:\Program Files\ImageMagick-*\magick.exe)
Linux/macOS : Bash with ImageMagick installed via package manager (apt, brew, etc.)

Core Capabilities

1. Image Information

Get image dimensions (width x height)
Retrieve detailed metadata (format, color space, etc.)
Identify image format

2. Image Resizing

Resize single images
Batch resize multiple images
Create thumbnails with specific dimensions
Maintain aspect ratios

3. Batch Processing

Process images based on dimensions
Filter and process specific file types
Apply transformations to multiple files

Usage Examples

Example 0: Resolve `magick` executable

PowerShell (Windows):

# Prefer ImageMagick on PATH
$magick = (Get-Command magick -ErrorAction SilentlyContinue)?.Source

# Fallback: common install pattern under Program Files
if (-not $magick) {
    $magick = Get-ChildItem "C:\\Program Files\\ImageMagick-*\\magick.exe" -ErrorAction SilentlyContinue |
        Select-Object -First 1 -ExpandProperty FullName
}

if (-not $magick) {
    throw "ImageMagick not found. Install it and/or add 'magick' to PATH."
}

Bash (Linux/macOS):

# Check if magick is available on PATH
if ! command -v magick &> /dev/null; then
    echo "ImageMagick not found. Install it using your package manager:"
    echo "  Ubuntu/Debian: sudo apt install imagemagick"
    echo "  macOS: brew install imagemagick"
    exit 1
fi

Example 1: Get Image Dimensions

PowerShell (Windows):

# For a single image
& $magick identify -format "%wx%h" path/to/image.jpg

# For multiple images
Get-ChildItem "path/to/images/*" | ForEach-Object { 
    $dimensions = & $magick identify -format "%f: %wx%h`n" $_.FullName
    Write-Host $dimensions 
}

Bash (Linux/macOS):

# For a single image
magick identify -format "%wx%h" path/to/image.jpg

# For multiple images
for img in path/to/images/*; do
    magick identify -format "%f: %wx%h\n" "$img"
done

Example 2: Resize Images

PowerShell (Windows):

# Resize a single image
& $magick input.jpg -resize 427x240 output.jpg

# Batch resize images
Get-ChildItem "path/to/images/*" | ForEach-Object { 
    & $magick $_.FullName -resize 427x240 "path/to/output/thumb_$($_.Name)"
}

Bash (Linux/macOS):

# Resize a single image
magick input.jpg -resize 427x240 output.jpg

# Batch resize images
for img in path/to/images/*; do
    filename=$(basename "$img")
    magick "$img" -resize 427x240 "path/to/output/thumb_$filename"
done

Example 3: Get Detailed Image Information

PowerShell (Windows):

# Get verbose information about an image
& $magick identify -verbose path/to/image.jpg

Bash (Linux/macOS):

# Get verbose information about an image
magick identify -verbose path/to/image.jpg

Example 4: Process Images Based on Dimensions

PowerShell (Windows):

Get-ChildItem "path/to/images/*" | ForEach-Object { 
    $dimensions = & $magick identify -format "%w,%h" $_.FullName
    if ($dimensions) {
        $width,$height = $dimensions -split ','
        if ([int]$width -eq 2560 -or [int]$height -eq 1440) {
            Write-Host "Processing $($_.Name)"
            & $magick $_.FullName -resize 427x240 "path/to/output/thumb_$($_.Name)"
        }
    }
}

Bash (Linux/macOS):

for img in path/to/images/*; do
    dimensions=$(magick identify -format "%w,%h" "$img")
    if [[ -n "$dimensions" ]]; then
        width=$(echo "$dimensions" | cut -d',' -f1)
        height=$(echo "$dimensions" | cut -d',' -f2)
        if [[ "$width" -eq 2560 || "$height" -eq 1440 ]]; then
            filename=$(basename "$img")
            echo "Processing $filename"
            magick "$img" -resize 427x240 "path/to/output/thumb_$filename"
        fi
    fi
done

Guidelines

Always quote file paths - Use quotes around file paths that might contain spaces
Use the& operator (PowerShell) - Invoke the magick executable using & in PowerShell
Store the path in a variable (PowerShell) - Assign the ImageMagick path to $magick for cleaner code
Wrap in loops - When processing multiple files, use ForEach-Object (PowerShell) or for loops (Bash)
Verify dimensions first - Check image dimensions before processing to avoid unnecessary operations
Use appropriate resize flags - Consider using ! to force exact dimensions or ^ for minimum dimensions

Common Patterns

PowerShell Patterns

Pattern: Store ImageMagick Path

$magick = (Get-Command magick).Source

Pattern: Get Dimensions as Variables

$dimensions = & $magick identify -format "%w,%h" $_.FullName
$width,$height = $dimensions -split ','

Pattern: Conditional Processing

if ([int]$width -gt 1920) {
    & $magick $_.FullName -resize 1920x1080 $outputPath
}

Pattern: Create Thumbnails

& $magick $_.FullName -resize 427x240 "thumbnails/thumb_$($_.Name)"

Bash Patterns

Pattern: Check ImageMagick Installation

command -v magick &> /dev/null || { echo "ImageMagick required"; exit 1; }

Pattern: Get Dimensions as Variables

dimensions=$(magick identify -format "%w,%h" "$img")
width=$(echo "$dimensions" | cut -d',' -f1)
height=$(echo "$dimensions" | cut -d',' -f2)

Pattern: Conditional Processing

if [[ "$width" -gt 1920 ]]; then
    magick "$img" -resize 1920x1080 "$outputPath"
fi

Pattern: Create Thumbnails

filename=$(basename "$img")
magick "$img" -resize 427x240 "thumbnails/thumb_$filename"

Limitations

Large batch operations may be memory-intensive
Some complex operations may require additional ImageMagick delegates
On older Linux systems, use convert instead of magick (ImageMagick 6.x vs 7.x)

Weekly Installs

7.6K

Repository

github/awesome-copilot

GitHub Stars

26.7K

First Seen

Jan 22, 2026

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ImageMagick图像处理技能：批量调整大小、格式转换与元数据提取

🇨🇳中文介绍

使用 ImageMagick 进行图像处理

何时使用此技能

先决条件

核心功能

1. 图像信息

2. 图像调整大小

相关 Skills

3. 批量处理

使用示例

示例 0：解析 magick 可执行文件

示例 1：获取图像尺寸

示例 2：调整图像大小

示例 3：获取详细的图像信息

示例 4：基于尺寸处理图像

指南

常见模式

PowerShell 模式

模式：存储 ImageMagick 路径

模式：将尺寸作为变量获取

模式：条件处理

模式：创建缩略图

Bash 模式

模式：检查 ImageMagick 安装

模式：将尺寸作为变量获取

模式：条件处理

模式：创建缩略图

限制

🇺🇸English

Image Manipulation with ImageMagick

When to Use This Skill

Prerequisites

Core Capabilities

1. Image Information

2. Image Resizing

3. Batch Processing

Usage Examples

Example 0: Resolve magick executable

Example 1: Get Image Dimensions

Example 2: Resize Images

Example 3: Get Detailed Image Information

Example 4: Process Images Based on Dimensions

Guidelines

Common Patterns

PowerShell Patterns

Pattern: Store ImageMagick Path

Pattern: Get Dimensions as Variables

Pattern: Conditional Processing

Pattern: Create Thumbnails

Bash Patterns

Pattern: Check ImageMagick Installation

Pattern: Get Dimensions as Variables

Pattern: Conditional Processing

Pattern: Create Thumbnails

Limitations

示例 0：解析 `magick` 可执行文件

Example 0: Resolve `magick` executable