GMImage.SharpenChannel
----------------------

Sharpen pixels in image

| Component | Version | macOS | Windows | Linux | Server | iOS SDK |
|---|---|---|---|---|---|---|
| [GraphicsMagick](component_GraphicsMagick.md) | [2.0](newinversion20.md) | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |

MBS( "GMImage.SharpenChannel"; ImageRef; ChannelType; Radius; sigma ) 

**MBS**( **"GMImage.SharpenChannel";** /\* Sharpen pixels in image \*/  
**$ImageRef**; /\* The image reference number.e.g. 1 \*/   
**$ChannelType**; /\* One of the following values: RedChannel = 1 (RGB Red channel), CyanChannel = 2 (CMYK Cyan channel), GreenChannel = 3 (RGB Green channel), MagentaChannel = 4 (CMYK Magenta channel), BlueChannel = 5 (RGB Blue channel), YellowChannel = 6 (CMYK Yellow channel), OpacityChannel = 7 (Opacity channel), BlackChannel = 8 (CMYK Black (K) channel), MatteChannel = 9 (Same as Opacity channel (deprecated)), AllChannels = 10 (Color channels), GrayChannel = 11 (Color channels represent an intensity.)e.g. 1 \*/   
**$Radius**; /\* The radius of the Gaussian, in pixels, not counting the center pixel.e.g. 0 \*/   
**$sigma**) /\* The standard deviation of the Laplacian, in pixels.e.g. 1 \*/ 

### Parameters

| Parameter | Description | Example |
|---|---|---|
| ImageRef | The image reference number. | 1 |
| ChannelType | One of the following values: RedChannel = 1 (RGB Red channel), CyanChannel = 2 (CMYK Cyan channel), GreenChannel = 3 (RGB Green channel), MagentaChannel = 4 (CMYK Magenta channel), BlueChannel = 5 (RGB Blue channel), YellowChannel = 6 (CMYK Yellow channel), OpacityChannel = 7 (Opacity channel), BlackChannel = 8 (CMYK Black (K) channel), MatteChannel = 9 (Same as Opacity channel (deprecated)), AllChannels = 10 (Color channels), GrayChannel = 11 (Color channels represent an intensity.) | 1 |
| Radius | The radius of the Gaussian, in pixels, not counting the center pixel. | 0 |
| sigma | The standard deviation of the Laplacian, in pixels. | 1 |

### Result

Returns "OK" on success.

### Description

Sharpen pixels in image  
### Blog Entries

- [GraphicsMagick in FileMaker, part 15](https://www.mbsplugins.de/archive/2022-12-15/GraphicsMagick_in_FileMaker_pa/monkeybreadsoftware_blog_filemaker)

This function checks for a license.

Created 18th August 2014 , last changed 18th August 2014

  
[GMImage.Sharpen](GMImageSharpen.md) - [GMImage.Shave](GMImageShave.md)

[HTML Version](GMImageSharpenChannel.shtml)