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GMImage.NormalizedMaxError

The normalized max error per pixel computed when an image is color reduced.

Component Version macOS Windows Server FileMaker Cloud FileMaker iOS SDK
GraphicsMagick 2.0 Yes Yes Yes Yes Yes

MBS( "GMImage.NormalizedMaxError"; ImageRef )

Parameters

Parameter Description Example value
ImageRef The image reference number. 1

Result

Returns the normalized max error as number.

Description

The normalized max error per pixel computed when an image is color reduced.

Examples

Compares two images:

Set Variable [$img1; Value:MBS( "GMImage.NewFromContainer"; test::Container1 )]
Set Variable [$img2; Value:MBS( "GMImage.NewFromContainer"; test::Container2 )]
Set Variable [$result; Value:MBS( "GMImage.Compare"; $img1; $img2 )]
If [$result = 1]
    Show Custom Dialog ["Image Comparison"; "equal"]
Else If [$result = 0]
    Set Variable [$e; Value:MBS( "GMImage.NormalizedMaxError"; $img1 )]
    If [$e ≠ 0 and $e < ,03]
        Show Custom Dialog ["Image Comparison"; "very similar: " & MBS( "GMImage.NormalizedMaxError"; $img1 )]
    Else
        Show Custom Dialog ["Image Comparison"; "not equal"]
    End If
End If
Set Variable [$r; Value:MBS("GMImage.Destroy"; $img1)]
Set Variable [$r; Value:MBS("GMImage.Destroy"; $img2)]

See also


GMImage.Normalize   -   GMImage.NormalizedMeanError

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