About the Sharpen Image
Sharpen Image applies a 3x3 convolution that emphasizes the center pixel relative to its direct neighbors. Strength blends the filtered result with the original to avoid an unnecessarily harsh default.
How to use the Sharpen Image
- Load the image.
- Start with a strength below one.
- Sharpen, zoom into edges and stop before halos become obvious.
Practical tips
- Sharpening cannot restore genuinely missing focus or resolution.
- Noise and JPEG artifacts are also edges and may become stronger.