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Sharpen Image

Sharpen images using an unsharp mask convolution kernel.

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Ueber Sharpen Image

Sharpen JPEG, PNG, and WebP images using a convolution kernel. Enhance edges and details in slightly blurry or soft photos. Adjust the sharpening amount from subtle to strong.

So funktioniert es

A 3x3 unsharp mask convolution kernel is applied to every pixel. Unlike CSS filters (which lack a sharpen option), this uses direct pixel manipulation via getImageData and putImageData. Each pixel's value is calculated by weighing it against its neighbors.

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