Unsharp Mask Sharpening
Professional-grade image sharpening with precise control
Apply industry-standard unsharp mask sharpening to your photos. Fine-tune every aspect of the sharpening process with professional controls for amount, radius, and threshold.
Upload Files
Drag and drop your files here, or click to browse
Supports: JPG, JPEG, PNG, WEBP, HEIC, HEIF, AVIF, GIF
How to Use Unsharp Mask
Apply professional unsharp mask sharpening in four simple steps
Upload Your Images
Drag and drop your images or click to select them from your device. Supports JPG, PNG, WebP, and more formats.
Adjust Settings
Set amount, radius, and threshold values. Choose from professional presets or customize for your specific needs.
Preview Results
Compare before and after in real-time to see the sharpening effect.
Download Results
Save your sharpened image in high quality with professional results.
Unsharp Mask Features
Professional sharpening with advanced controls
6 Professional Presets
Original, Subtle, Portrait, Landscape, Architecture, and Technical presets for different use cases
Advanced Algorithm
Professional unsharp mask implementation with precise mathematical control
4 Mask Modes
Luminance, Chrominance, RGB, and HSL modes for different sharpening approaches
Precise Controls
Amount (0-500%), Radius (0.1-10px), Threshold (0-255) for exact adjustments
Halo Suppression
Advanced halo control prevents bright halos around high-contrast edges
Adaptive Mode
Content-aware sharpening that automatically adjusts to image characteristics
Real-time Preview
See sharpening results instantly with before/after comparison
Privacy Protected
All processing happens in your browser. Your photos never leave your device
Supported Image Formats
Unsharp mask sharpening compatibility for all major image formats
Input Formats
Upload images in any of these supported formats
Output Formats
Download sharpened images in your preferred format
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Frequently Asked Questions
What is unsharp mask?
Unsharp mask is a professional sharpening technique that creates a blurred version of the image and subtracts it from the original to enhance edges. Despite its name, it actually sharpens images.
How does amount affect the sharpening?
The amount control determines the intensity of the sharpening effect. Higher values create stronger sharpening, but too much can create unnatural halos and artifacts.
What does radius control?
Radius controls the size of the sharpening area around each edge. Smaller radii affect fine details, while larger radii impact broader areas. Use 0.5-1.0px for fine details, 1-2px for general sharpening.
What is threshold for?
Threshold determines how different a pixel must be from its surroundings to be sharpened. Higher thresholds protect smooth areas from being sharpened and only affect edges.
Which mask mode should I use?
Luminance works well for most images. Chrominance is better for portraits as it avoids sharpening skin tones. RGB provides equal sharpening across all channels, while HSL offers hue-based control.
What is halo suppression?
Halo suppression prevents bright halos that can appear around high-contrast edges when sharpening too strongly. Higher values reduce halos but may slightly decrease sharpening effectiveness.
When should I use adaptive mode?
Adaptive mode automatically adjusts sharpening based on image content. It's especially useful for images with mixed content or when you're unsure of the optimal settings.
What's the difference between styles?
Each style is optimized for specific content: Portrait for skin-friendly sharpening, Landscape for nature scenes, Architecture for lines and structures, Product for commercial photography, and Technical for maximum detail.
Is it safe to use this unsharp mask tool?
Absolutely. All processing happens directly in your browser using JavaScript. Your photos are never uploaded to our servers, ensuring complete privacy and security.
What image formats are supported?
We support all major image formats including JPEG, PNG, WebP, HEIC, AVIF, and GIF. Images are processed at their original resolution to maintain quality.