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ImageGrayscale
Last update:
May 18, 2026
Description
Converts a ColdFusion image to grayscale.
Returns
Nothing.
Category
Function syntax
ImageGrayscale(name) |
See also
History
ColdFusion 8: Added this function.
Parameters
Parameter | Description |
name | Required. The ColdFusion image on which this operation is performed. |
Usage
Use the ImageSetAntialiasing function to improve the quality of the rendered image.
Example
<!--- This example shows how to change a color image to grayscale. --->
<!--- Create a ColdFusion image from an existing color image. --->
<cfimage source="../cfdocs/images/artgallery/jeff04.jpg" name="myImage">
<!--- Turn on antialiasing to improve image quality. --->
<cfset ImageSetAntialiasing(myImage,"on")>
<!--- Change the image to grayscale. --->
<cfset ImageGrayscale(myImage)>
<!--- Save the grayscale image to a JPEG file. --->
<cfimage source="#myImage#" action="write" destination="test_myImage.jpg" overwrite="yes">
<!--- Display the source image and the grayscale image. --->
<img src="../cfdocs/images/artgallery/jeff04.jpg"/>
<img src="test_myImage.jpg"/>
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