Sharpen
Unsharp mask
Sharpening is a powerful tool to emphasize texture and details, especially on smaller images, e.g. thumbnails. Cloudimage can apply an unsharp mask filter which will make your image look sharper. You can specify the filter radius (X) in pixels.
sharp=X
Examples
Preview
Syntax
Only resize: /sample.li/darkside.jpg?w=300
Resize and sharpen: /sample.li/darkside.jpg?w=300&sharp=3
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