All functions Mac OS X Windows Crossplatform Components New in version: 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 2.0
Component: GraphicsMagick
Mac OS X: Works
Windows: Works
MBS( "GMImage.Threshold"; ImageRef; threshold )
Parameter | Description | Example value |
---|---|---|
ImageRef | The image reference (a number returned from the GMImage.New functions) | 1 |
threshold | The range of the threshold parameter is 0 to MaxRGB (255). | 127 |
Returns "OK" on success.
Threshold image channels (below threshold becomes black, above threshold becomes white).
Applies a threshold on the image:
Let ( [
$Image = MBS("GMImage.NewFromContainer"; GraphicsMagick::image);
$Result = MBS("GMImage.Threshold";$Image; 127);
$Result = MBS("GMImage.WriteToJPEGContainer"; $Image);
$Error = MBS("GMImage.Destroy";$Image)
];
$Result)
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