About Image Sharpen
Sharpen blurry photos and enhance edge contrast using unsharp masking convolution filtering directly in your browser.
Key Capabilities & Features
- Unsharp masking mathematical convolution kernel
- Adjustable intensity slider (0.2x to 2.5x)
- Accentuates fine textures and edges without halo artifacts
- Instant comparison and download
How to Use Image Sharpen
1
Upload Photo
Select the blurry or soft image to sharpen.
2
Adjust Intensity
Select sharpening level for optimal edge crispness.
3
Save Image
Download your sharpened high-detail photo.
Privacy & In-Browser Execution Guarantee
Convolution matrices run 100% locally in browser memory.
Frequently Asked Questions
How does the sharpening algorithm work?
It calculates high-frequency edge gradients using a 3x3 convolution kernel and accentuates contrast along contours.