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GMImage.NormalizedMaxError

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

Component Version macOS Windows Linux Server iOS SDK
GraphicsMagick 2.0 ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
MBS( "GMImage.NormalizedMaxError"; ImageRef )   More

Parameters

Parameter Description Example
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.Release"; $img1)]
Set Variable [$r; Value:MBS("GMImage.Release"; $img2)]

See also

Created 18th August 2014, last changed 21st December 2018


GMImage.Normalize - GMImage.NormalizedMeanError

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