GMImage.GetPixelColor

Get pixel color at location x & y.

Parameters

Parameter	Description	Example
ImageRef	The image reference number.	1
x	The horizontal position. Range from 0 to GMImage.GetWidth-1.	0
y	The vertical position. Range from 0 to GMImage.GetHeight-1.	0

Result

Returns a color value as string.

Description

Examples

Open picture and read first pixel:

Let ( [

$Image = MBS("GMImage.NewFromContainer"; GraphicsMagick::image);
$colorValue = MBS("GMImage.GetPixelColor"; $Image; 0; 0);
$Error = MBS("GMImage.Release";$Image)
];

$colorValue )

Trims space around image and make transparent:

Set Variable [$BigImageRef; Value:MBS("GMImage.NewFromContainer"; Test::BigImage)]
Set Variable [$Result; Value:MBS( "GMImage.SetBackgroundColor"; $BigImageRef; "RGB 1 0 0" )]
Set Variable [$Result; Value:MBS("GMImage.Trim"; $BigImageRef)]
Set Variable [$Result; Value:MBS( "GMImage.SetColorFuzz"; $BigImageRef; 5 )]
Set Variable [$Result; Value:MBS( "GMImage.SetMatte"; $BigImageRef; 1 )]
Set Variable [$farbe; Value:MBS( "GMImage.GetPixelColor"; $BigImageRef; 0; 0 )]
Set Variable [$Result; Value:MBS( "GMImage.ReplaceColor"; $BigImageRef; $farbe; "RGB 1 1 1 1"; 5)]
Set Field [Test::Result; MBS( "GMImage.WriteToPNGContainer"; $BigImageRef )]
Set Variable [$Error; Value:MBS("GMImage.Release";$BigImageRef)]

See also

• GMImage.GetBorderColor
• GMImage.GetBoxColor
• GMImage.GetFillColor
• GMImage.GetStrokeColor
• GMImage.SetBackgroundColor
• GMImage.SetBorderColor
• GMImage.SetFillColor
• GMImage.SetMatteColor
• GMImage.SetPixelColor
• GMImage.Trim

Example Databases

• GraphicsMagick/Find Pixels
• GraphicsMagick/Pick color from image via Screenshot
• GraphicsMagick/Trim Picture Border

Blog Entries

• MBS FileMaker Plugin, version 5.1pr1

This function checks for a license.

Created 18th August 2014, last changed 9th January 2020

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