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+# ImageMagick Image Editing
+
+Complete guide to format conversion, resizing, effects, transformations, and composition.
+
+## Format Conversion
+
+### Basic Conversion
+Convert between image formats.
+
+```bash
+# PNG to JPEG
+magick input.png output.jpg
+
+# JPEG to WebP
+magick input.jpg output.webp
+
+# Multiple outputs simultaneously
+magick input.png output.jpg output.webp output.gif
+
+# Convert with quality setting
+magick input.png -quality 85 output.jpg
+```
+
+### Quality Settings
+
+**JPEG Quality (0-100):**
+- 95-100: Archival, minimal compression
+- 85-94: High quality, web publishing
+- 75-84: Medium quality, web optimized
+- 60-74: Lower quality, smaller files
+- Below 60: Visible artifacts
+
+```bash
+# High quality
+magick input.png -quality 95 output.jpg
+
+# Web optimized (recommended)
+magick input.png -quality 85 -strip output.jpg
+
+# Smaller file size
+magick input.png -quality 75 -sampling-factor 4:2:0 -strip output.jpg
+```
+
+**PNG Quality (0-9 = compression level):**
+```bash
+# Maximum compression (slower)
+magick input.jpg -quality 95 output.png
+
+# Faster compression
+magick input.jpg -quality 75 output.png
+```
+
+**WebP Quality:**
+```bash
+# Lossy with quality
+magick input.jpg -quality 80 output.webp
+
+# Lossless
+magick input.png -define webp:lossless=true output.webp
+```
+
+### Progressive & Optimization
+
+```bash
+# Progressive JPEG (better web loading)
+magick input.png -quality 85 -interlace Plane output.jpg
+
+# Strip metadata (reduce file size)
+magick input.jpg -strip output.jpg
+
+# Combined optimization
+magick input.png -quality 85 -interlace Plane -strip output.jpg
+```
+
+## Resizing Operations
+
+### Basic Resize
+Maintain aspect ratio.
+
+```bash
+# Fit within 800×600
+magick input.jpg -resize 800x600 output.jpg
+
+# Resize to specific width (auto height)
+magick input.jpg -resize 800x output.jpg
+
+# Resize to specific height (auto width)
+magick input.jpg -resize x600 output.jpg
+
+# Scale by percentage
+magick input.jpg -resize 50% output.jpg
+```
+
+### Advanced Resize
+
+```bash
+# Resize only if larger (shrink only)
+magick input.jpg -resize 800x600\> output.jpg
+
+# Resize only if smaller (enlarge only)
+magick input.jpg -resize 800x600\< output.jpg
+
+# Force exact dimensions (ignore aspect ratio)
+magick input.jpg -resize 800x600! output.jpg
+
+# Fill dimensions (may crop)
+magick input.jpg -resize 800x600^ output.jpg
+
+# Minimum dimensions
+magick input.jpg -resize 800x600^ output.jpg
+```
+
+### Resize Algorithms
+
+```bash
+# High quality (Lanczos)
+magick input.jpg -filter Lanczos -resize 50% output.jpg
+
+# Fast resize (Box)
+magick input.jpg -filter Box -resize 50% output.jpg
+
+# Mitchel filter (good balance)
+magick input.jpg -filter Mitchell -resize 50% output.jpg
+```
+
+**Filter comparison:**
+- `Lanczos` - Highest quality, slower
+- `Mitchell` - Good quality, fast
+- `Catrom` - Sharp, good for downscaling
+- `Box` - Fastest, acceptable quality
+- `Cubic` - Smooth results
+
+## Cropping
+
+### Basic Crop
+Extract region from image.
+
+```bash
+# Crop width×height+x+y
+magick input.jpg -crop 400x400+100+100 output.jpg
+
+# Remove virtual canvas after crop
+magick input.jpg -crop 400x400+100+100 +repage output.jpg
+
+# Crop from center
+magick input.jpg -gravity center -crop 400x400+0+0 output.jpg
+
+# Crop to aspect ratio
+magick input.jpg -gravity center -crop 16:9 +repage output.jpg
+```
+
+### Smart Crop
+Content-aware cropping.
+
+```bash
+# Trim transparent/same-color borders
+magick input.png -trim +repage output.png
+
+# Trim with fuzz tolerance
+magick input.jpg -fuzz 10% -trim +repage output.jpg
+```
+
+### Thumbnail Generation
+Create square thumbnails from any aspect ratio.
+
+```bash
+# Resize and crop to square
+magick input.jpg -resize 200x200^ -gravity center -extent 200x200 thumb.jpg
+
+# Alternative method
+magick input.jpg -thumbnail 200x200^ -gravity center -crop 200x200+0+0 +repage thumb.jpg
+
+# With background (no crop)
+magick input.jpg -resize 200x200 -background white -gravity center -extent 200x200 thumb.jpg
+```
+
+## Effects & Filters
+
+### Blur Effects
+
+```bash
+# Standard blur (radius 0 = auto)
+magick input.jpg -blur 0x8 output.jpg
+
+# Gaussian blur (radius×sigma)
+magick input.jpg -gaussian-blur 5x3 output.jpg
+
+# Motion blur (angle)
+magick input.jpg -motion-blur 0x20+45 output.jpg
+
+# Radial blur
+magick input.jpg -radial-blur 10 output.jpg
+```
+
+### Sharpen
+
+```bash
+# Basic sharpen
+magick input.jpg -sharpen 0x1 output.jpg
+
+# Stronger sharpen
+magick input.jpg -sharpen 0x3 output.jpg
+
+# Unsharp mask (advanced)
+magick input.jpg -unsharp 0x1 output.jpg
+```
+
+### Color Effects
+
+```bash
+# Grayscale
+magick input.jpg -colorspace Gray output.jpg
+
+# Sepia tone
+magick input.jpg -sepia-tone 80% output.jpg
+
+# Negate (invert colors)
+magick input.jpg -negate output.jpg
+
+# Posterize (reduce colors)
+magick input.jpg -posterize 8 output.jpg
+
+# Solarize
+magick input.jpg -solarize 50% output.jpg
+```
+
+### Artistic Effects
+
+```bash
+# Edge detection
+magick input.jpg -edge 3 output.jpg
+
+# Emboss
+magick input.jpg -emboss 2 output.jpg
+
+# Oil painting
+magick input.jpg -paint 4 output.jpg
+
+# Charcoal drawing
+magick input.jpg -charcoal 2 output.jpg
+
+# Sketch
+magick input.jpg -sketch 0x20+120 output.jpg
+
+# Swirl
+magick input.jpg -swirl 90 output.jpg
+```
+
+## Adjustments
+
+### Brightness & Contrast
+
+```bash
+# Increase brightness
+magick input.jpg -brightness-contrast 10x0 output.jpg
+
+# Increase contrast
+magick input.jpg -brightness-contrast 0x20 output.jpg
+
+# Both
+magick input.jpg -brightness-contrast 10x20 output.jpg
+
+# Negative values to decrease
+magick input.jpg -brightness-contrast -10x-10 output.jpg
+```
+
+### Color Adjustments
+
+```bash
+# Adjust saturation (HSL modulation)
+# Format: brightness,saturation,hue
+magick input.jpg -modulate 100,150,100 output.jpg
+
+# Adjust hue
+magick input.jpg -modulate 100,100,120 output.jpg
+
+# Combined adjustments
+magick input.jpg -modulate 105,120,100 output.jpg
+
+# Adjust specific color channels
+magick input.jpg -channel Red -evaluate multiply 1.2 output.jpg
+```
+
+### Auto Corrections
+
+```bash
+# Auto level (normalize contrast)
+magick input.jpg -auto-level output.jpg
+
+# Auto gamma correction
+magick input.jpg -auto-gamma output.jpg
+
+# Normalize (stretch histogram)
+magick input.jpg -normalize output.jpg
+
+# Enhance (digital enhancement)
+magick input.jpg -enhance output.jpg
+
+# Equalize (histogram equalization)
+magick input.jpg -equalize output.jpg
+```
+
+## Transformations
+
+### Rotation
+
+```bash
+# Rotate 90° clockwise
+magick input.jpg -rotate 90 output.jpg
+
+# Rotate 180°
+magick input.jpg -rotate 180 output.jpg
+
+# Rotate counter-clockwise
+magick input.jpg -rotate -90 output.jpg
+
+# Rotate with background
+magick input.jpg -background white -rotate 45 output.jpg
+
+# Auto-orient based on EXIF
+magick input.jpg -auto-orient output.jpg
+```
+
+### Flip & Mirror
+
+```bash
+# Flip vertically
+magick input.jpg -flip output.jpg
+
+# Flip horizontally (mirror)
+magick input.jpg -flop output.jpg
+
+# Both
+magick input.jpg -flip -flop output.jpg
+```
+
+## Borders & Frames
+
+### Simple Borders
+
+```bash
+# Add 10px black border
+magick input.jpg -border 10x10 output.jpg
+
+# Colored border
+magick input.jpg -bordercolor red -border 10x10 output.jpg
+
+# Different width/height
+magick input.jpg -bordercolor blue -border 20x10 output.jpg
+```
+
+### Advanced Frames
+
+```bash
+# Raised frame
+magick input.jpg -mattecolor gray -frame 10x10+5+5 output.jpg
+
+# Shadow effect
+magick input.jpg \
+  \( +clone -background black -shadow 80x3+5+5 \) \
+  +swap -background white -layers merge +repage \
+  output.jpg
+
+# Rounded corners
+magick input.jpg \
+  \( +clone -threshold -1 -draw "fill black polygon 0,0 0,15 15,0 fill white circle 15,15 15,0" \
+  \( +clone -flip \) -compose multiply -composite \
+  \( +clone -flop \) -compose multiply -composite \
+  \) -alpha off -compose copy_opacity -composite \
+  output.png
+```
+
+## Text & Annotations
+
+### Basic Text
+
+```bash
+# Simple text overlay
+magick input.jpg -pointsize 30 -fill white -annotate +10+30 "Hello" output.jpg
+
+# Positioned text
+magick input.jpg -gravity south -pointsize 20 -fill white \
+  -annotate +0+10 "Copyright 2025" output.jpg
+
+# Text with background
+magick input.jpg -gravity center -pointsize 40 -fill white \
+  -undercolor black -annotate +0+0 "Watermark" output.jpg
+```
+
+### Advanced Text
+
+```bash
+# Semi-transparent watermark
+magick input.jpg \
+  \( -background none -fill "rgba(255,255,255,0.5)" \
+  -pointsize 50 label:"DRAFT" \) \
+  -gravity center -compose over -composite \
+  output.jpg
+
+# Text with stroke
+magick input.jpg -gravity center \
+  -stroke black -strokewidth 2 -fill white \
+  -pointsize 60 -annotate +0+0 "Title" \
+  output.jpg
+
+# Custom font
+magick input.jpg -font Arial-Bold -pointsize 40 \
+  -gravity center -fill white -annotate +0+0 "Text" \
+  output.jpg
+```
+
+## Image Composition
+
+### Overlay Images
+
+```bash
+# Basic overlay (top-left)
+magick input.jpg overlay.png -composite output.jpg
+
+# Position with gravity
+magick input.jpg watermark.png -gravity southeast -composite output.jpg
+
+# Position with offset
+magick input.jpg watermark.png -gravity southeast \
+  -geometry +10+10 -composite output.jpg
+
+# Center overlay
+magick input.jpg logo.png -gravity center -composite output.jpg
+```
+
+### Composite Modes
+
+```bash
+# Over (default)
+magick input.jpg overlay.png -compose over -composite output.jpg
+
+# Multiply
+magick input.jpg texture.png -compose multiply -composite output.jpg
+
+# Screen
+magick input.jpg light.png -compose screen -composite output.jpg
+
+# Overlay blend mode
+magick input.jpg pattern.png -compose overlay -composite output.jpg
+```
+
+### Side-by-Side
+
+```bash
+# Horizontal append
+magick image1.jpg image2.jpg +append output.jpg
+
+# Vertical append
+magick image1.jpg image2.jpg -append output.jpg
+
+# With spacing
+magick image1.jpg image2.jpg -gravity center \
+  -background white -splice 10x0 +append output.jpg
+```
+
+## Transparency
+
+### Create Transparency
+
+```bash
+# Make color transparent
+magick input.jpg -transparent white output.png
+
+# Make similar colors transparent (with fuzz)
+magick input.jpg -fuzz 10% -transparent white output.png
+
+# Alpha channel operations
+magick input.png -alpha set -channel A -evaluate multiply 0.5 +channel output.png
+```
+
+### Remove Transparency
+
+```bash
+# Flatten with white background
+magick input.png -background white -flatten output.jpg
+
+# Flatten with custom color
+magick input.png -background "#ff0000" -flatten output.jpg
+```
+
+## Advanced Techniques
+
+### Vignette Effect
+
+```bash
+# Default vignette
+magick input.jpg -vignette 0x20 output.jpg
+
+# Custom vignette
+magick input.jpg -background black -vignette 0x25+10+10 output.jpg
+```
+
+### Depth of Field Blur
+
+```bash
+# Radial blur from center
+magick input.jpg \
+  \( +clone -blur 0x8 \) \
+  \( +clone -fill white -colorize 100 \
+  -fill black -draw "circle %[fx:w/2],%[fx:h/2] %[fx:w/2],%[fx:h/4]" \
+  -blur 0x20 \) \
+  -composite output.jpg
+```
+
+### HDR Effect
+
+```bash
+magick input.jpg \
+  \( +clone -colorspace gray \) \
+  \( -clone 0 -auto-level -modulate 100,150,100 \) \
+  -delete 0 -compose overlay -composite \
+  output.jpg
+```
+
+### Tilt-Shift Effect
+
+```bash
+magick input.jpg \
+  \( +clone -sparse-color Barycentric '0,%[fx:h*0.3] gray0 0,%[fx:h*0.5] white 0,%[fx:h*0.7] gray0' \) \
+  \( +clone -blur 0x20 \) \
+  -compose blend -define compose:args=100 -composite \
+  output.jpg
+```
+
+## Color Management
+
+### Color Profiles
+
+```bash
+# Strip color profile
+magick input.jpg -strip output.jpg
+
+# Assign color profile
+magick input.jpg -profile sRGB.icc output.jpg
+
+# Convert between profiles
+magick input.jpg -profile AdobeRGB.icc -profile sRGB.icc output.jpg
+```
+
+### Color Space Conversion
+
+```bash
+# Convert to sRGB
+magick input.jpg -colorspace sRGB output.jpg
+
+# Convert to CMYK (print)
+magick input.jpg -colorspace CMYK output.tif
+
+# Convert to LAB
+magick input.jpg -colorspace LAB output.jpg
+```
+
+## Performance Optimization
+
+### Memory Management
+
+```bash
+# Limit memory usage
+magick -limit memory 2GB -limit map 4GB input.jpg -resize 50% output.jpg
+
+# Set thread count
+magick -limit thread 4 input.jpg -resize 50% output.jpg
+
+# Streaming for large files
+magick -define stream:buffer-size=0 huge.jpg -resize 50% output.jpg
+```
+
+### Quality vs Size
+
+```bash
+# Maximum quality (large file)
+magick input.jpg -quality 95 output.jpg
+
+# Balanced (recommended)
+magick input.jpg -quality 85 -strip output.jpg
+
+# Smaller file (acceptable quality)
+magick input.jpg -quality 70 -sampling-factor 4:2:0 -strip output.jpg
+
+# Progressive JPEG
+magick input.jpg -quality 85 -interlace Plane -strip output.jpg
+```
+
+## Common Recipes
+
+### Avatar/Profile Picture
+
+```bash
+# Square thumbnail
+magick input.jpg -resize 200x200^ -gravity center -extent 200x200 avatar.jpg
+
+# Circular avatar (PNG)
+magick input.jpg -resize 200x200^ -gravity center -extent 200x200 \
+  \( +clone -threshold -1 -negate -fill white -draw "circle 100,100 100,0" \) \
+  -alpha off -compose copy_opacity -composite avatar.png
+```
+
+### Responsive Images
+
+```bash
+# Generate multiple sizes
+for size in 320 640 1024 1920; do
+  magick input.jpg -resize ${size}x -quality 85 -strip "output-${size}w.jpg"
+done
+```
+
+### Photo Enhancement
+
+```bash
+# Auto-enhance workflow
+magick input.jpg \
+  -auto-level \
+  -unsharp 0x1 \
+  -brightness-contrast 5x10 \
+  -modulate 100,110,100 \
+  -quality 90 -strip \
+  output.jpg
+```