Resizes a ColdFusion image.
imageResize(name, width, height, interpolation, blurfactor)
returns void
someImage.resize(width, height, interpolation, blurfactor)
| Name | Type | Required | Default | Description | Values | |
|---|---|---|---|---|---|---|
| name | string | Yes | The image on which this operation is performed. | |||
| width | numeric | Yes | New width of the image. If this value is blank, the width is calculated proportionately to the height. | |||
| height | numeric | Yes | New height of the image. If this value is blank, the height is calculated proportionately to the width. | |||
| interpolation | string | No | The interpolation method for resampling. You can specify a specific interpolation algorithm by name (for example, hamming), by image quality (for example, mediumQuality), or by performance (for example, highestPerformance). | /Users/garethedwards/development/github/cfdocs/docs/functions/imageresize.md | quadratic | |
| blurfactor | boolean | No | The blur factor used for resampling. The higher the blur factor, the more blurred the image (also, the longer it takes to resize the image). | /Users/garethedwards/development/github/cfdocs/docs/functions/imageresize.md | 1-10 |
This example shows how to resize an image to 50% of original size and resize it proportionately to the new width. Notice that the height is blank.
<cfset myImage=imageNew("http://www.google.com/images/logo_sm.gif")>
<cfset imageResize(myImage,"50%","","blackman",2)>
<!--- Save the modified image to a file called "test_myImage.jpeg" and display the image in a browser. --->
<cfimage source="#myImage#" action="write" destination="test_myImage.jpeg" overwrite="yes">
<!--- Display the source image and the thumbnail image. --->
<img src="http://www.google.com/images/logo_sm.gif"/>
<img src="test_myImage.jpeg"/>
CF11+ Resize an image
imgObj = imageRead("http://cfdocs.org/apple-touch-icon.png");
imgObj.resize(50,50);
cfimage(action="writeToBrowser", source=imgObj);