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Draw Images Into Other Images
The following example draws a company logo into the upper left corner of an image. The logo has an alpha channel which is used to composite the two images so that the image shows through the transparent portions of the logo. Additionally, the logo is made to be slightly transparent.
Source Code
<!--- create the object --->
<cfset myImage = CreateObject("Component","Image") />
<!--- open a new image --->
<cfset myImage.readImage("d:examples\wineRose.jpg") />
<!--- set the transparency used when drawing into the image --->
<cfset myImage.setTransparency(25) />
<!--- draw an image into the image --->
<cfset myImage.drawImage("d:examples\logo.png", 20, 20) />
<!--- output the new image --->
<cfset myImage.writeImage("d:examples\wineRoseLogo.jpg", "jpg") />
<!--- output the images --->
<b>Result</b><br>
<img src="/examples/wineRoseLogo.jpg">
<cfset myImage = CreateObject("Component","Image") />
<!--- open a new image --->
<cfset myImage.readImage("d:examples\wineRose.jpg") />
<!--- set the transparency used when drawing into the image --->
<cfset myImage.setTransparency(25) />
<!--- draw an image into the image --->
<cfset myImage.drawImage("d:examples\logo.png", 20, 20) />
<!--- output the new image --->
<cfset myImage.writeImage("d:examples\wineRoseLogo.jpg", "jpg") />
<!--- output the images --->
<b>Result</b><br>
<img src="/examples/wineRoseLogo.jpg">
Results
