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Replace image with a sharpened version of the original image using the unsharp mask algorithm.
Component | Version | macOS | Windows | Linux | Server | iOS SDK |
GraphicsMagick | 2.0 | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
Parameter | Description | Example |
---|---|---|
ImageRef | The image reference number. | 1 |
radius | the radius of the Gaussian, in pixels, not counting the center pixel. | 3 |
sigma | the standard deviation of the Gaussian, in pixels. | 1 |
amount | the percentage of the difference between the original and the blur image that is added back into the original. 50 | |
threshold | the threshold in pixels needed to apply the diffence amount. | 3 |
Returns "OK" on success.
Created 18th August 2014, last changed 18th August 2014
GMImage.Trim - GMImage.UnsharpmaskChannel
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