The following example shows how you can convert an image to grayscale using the <CFIMAGE> tag in ColdFusion by using the
imageGrayscale() method and setting the
action attribute to writeToBrowser.
<div> <img src="../images/cf9.png" /> <cfimage source="../images/cf9.png" name="logo" /> <cfset imageGrayscale(logo) /> <cfimage source="#logo#" action="writeToBrowser" format="png" /> </div>
And the output of the <CFIMAGE> tag is as follows: