Comments
By Aditya Banerjee
Marvin Castro wrote: Hi, I'm really interested in Google Wave. I find it useful for a plethora of things. I would appreciate an invite, and I will surely return the favor by inviting others. chaoswotaku[at]gmail[dot]com
Nov. 29, 2009 07:24 AM EST
Cloud Expo on Google News
Did you read today's front page stories & breaking news?

SYS-CON.TV: JBoss's Seam: Eliminate Complexity and Build Next-Generation Web 2.0 Applications

SYS-CON.TV

2009 East
PLATINUM SPONSORS:
IBM
Smarter Business Solutions Through Dynamic Infrastructure
IBM
Smarter Insights: How the CIO Becomes a Hero Again
Microsoft
Windows Azure
GOLD SPONSORS:
Appsense
Why VDI?
CA
Maximizing the Business Value of Virtualization in Enterprise and Cloud Computing Environments
ExactTarget
Messaging in the Cloud - Email, SMS and Voice
Freedom OSS
Stairway to the Cloud
Sun
Sun's Incubation Platform: Helping Startups Serve the Enterprise
POWER PANELS:
Cloud Computing & Enterprise IT: Cost & Operational Benefits
How and Why is a Flexible IT Infrastructure the Key To the Future?
Click For 2008 West
Event Webcasts
Learning CF8
CFImage Functionality is Just Awesome!
Integration into Tag and Scripting Language is a Welcome Development

By: Ben Nadel
Jul. 31, 2007 08:00 PM

Finally, ColdFusion 8 has incorporated image manipulation directly into the ColdFusion tag and scripting language. No more are we, as developers, chained to third-party products.

These products, while excellent in quality, just mean adding one more level of complexity to any application that requires server-side image manipulation. Now, with CFImage and an abundance of image-related functions, ColdFusion has done to image manipulation what it has done to almost every other aspect of Web applications development - it has made it simple.

Due to the wide array of image functionality in ColdFusion 8, I am going to try and break this tutorial up into several small and manageable parts. The first part will cover basic reading and writing of images using CFImage and the related image manipulation functions. But, before we get into that, let's just quickly touch upon these new features as a whole.

ColdFusion 8 has given us CFImage. CFImage provides us with tag-based access to only a small subset of the image functionality including:

  • Retrieving information about an image
  • Reading an image into memory
  • Resizing an image
  • Rotating an image
  • Adding a border to an image
  • Converting an image from one file format to another
  • Creating a CAPTCHA image
  • Writing an image to a file
  • Writing an image to the browser

    In addition to the CFImage tag, ColdFusion has introduced dozens of new image manipulation functions including:

     

  • ImageAddBorder()
  • ImageBlur()
  • ImageClearRect()
  • ImageCopy()
  • ImageCrop()
  • ImageDrawArc()
  • ImageDrawBeveledRect()
  • ImageDrawCubicCurve()
  • ImageDrawLine()
  • ImageDrawLines()
  • ImageDrawOval()
  • ImageDrawPoint()
  • ImageDrawQuadraticCurve()
  • ImageDrawRect()
  • ImageGetEXIFTag()
  • ImageGetHeight()
  • ImageGetIPTCTag()
  • ImageGetWidth()
  • ImageGrayscale()
  • ImageInfo()
  • ImageNegative()
  • ImageNew()
  • ImageOverlay()
  • ImagePaste()
  • ImageRead()
  • ImageReadBase64()
  • ImageResize()
  • ImageRotate()
  • ImageRotateDrawingAxis()
  • ImageScaleToFit()
  • ImageSetAntialiasing()

The ColdFusion 8 CFImage tag and the image-related functions all deal with a new ColdFusion object:

coldfusion.image.Image

Most of you are not going to care about this one all that much, but for those of you who are interested in the underlying Java methods of the coldfusion.image.Image object, I have listed them below (skip past this if you have no idea what I'm talking about). Please note that any underlying methods of the actual Java/ColdFusion objects are found by gathering object metadata and through reflection; none of these methods are documented or officially supported. If you choose to use them, you do so at your own risk and discretion.

  • addBorder( int, java.lang.String, java.lang.String ) - returns: void
  • blur( int ) - returns: void
  • brighten() - returns: void
  • clearRect( int, int, int, int ) - returns: void
  • copyArea( int, int, int, int ) - returns: coldfusion.image.Image
  • copyArea( int, int, int, int, int, int ) - returns: coldfusion.image.Image
  • crop( float, float, float, float ) - returns: void
  • draw3DRect( int, int, int, int, boolean, boolean ) - returns: void
  • drawArc( int, int, int, int, int, int, boolean ) - returns: void
  • drawCubicCurve( double, double, double, double, double, double, double, double ) - returns: void
  • drawLine( int, int, int, int ) - returns: void
  • drawLines( [I, [I, boolean, boolean ) - returns: void
  • drawOval( int, int, int, int, boolean ) - returns: void
  • drawPoint( int, int ) - returns: void
  • drawQuadraticCurve( double, double, double, double, double, double ) - returns: void
  • drawRect( int, int, int, int, boolean ) - returns: void
  • drawRoundRect( int, int, int, int, int, int, boolean ) - returns: void
  • drawString( java.lang.String, int, int, coldfusion.runtime.Struct ) - returns: void
  • flip( java.lang.String ) - returns: void
  • getBase64String( java.lang.String ) - returns: java.lang.String
  • getClass() - returns: java.lang.Class
  • getColor( java.lang.String ) - returns: java.awt.Color
  • getCurrentGraphics() - returns: java.awt.Graphics2D
  • getCurrentImage() - returns: java.awt.image.BufferedImage
  • getExifMetadata( javax.servlet.jsp.PageContext )- returns: coldfusion.runtime.Struct
  • getExifTag( java.lang.String, javax.servlet.jsp.PageContext ) - returns: java.lang.String
  • getHeight() - returns: int
  • getImageBytes( java.lang.String ) - returns: [B
  • getIptcMetadata( javax.servlet.jsp.PageContext ) - returns: coldfusion.runtime.Struct
  • getIptcTag( java.lang.String, javax.servlet.jsp.PageContext ) - returns: java.lang.String
  • getSource() - returns: java.lang.String
  • getWidth() - returns: int
  • grayscale() - returns: void
  • info() - returns: coldfusion.runtime.Struct
  • initializeMetadata( javax.servlet.jsp.PageContext ) - returns: void
  • invert() - returns: void
  • overlay( coldfusion.image.Image ) - returns: void
  • paste( coldfusion.image.Image, int, int ) - returns: void
  • readBase64( java.lang.String ) - returns: void
  • resize( java.lang.String, java.lang.String, java.lang.String ) - returns: void
  • resize( java.lang.String, java.lang.String, java.lang.String, double ) - returns: void
  • rotate( float, float, float, java.lang.String ) - returns: void
  • rotateAxis( double ) - returns: void
  • rotateAxis( double, double, double ) - returns: void
  • scaleToFit( int ) - returns: void
  • scaleToFit( java.lang.String, java.lang.String, java.lang.String ) - returns: void
  • scaleToFit( java.lang.String, java.lang.String, java.lang.String, double ) - returns: void
  • setAntiAliasing( java.lang.String ) - returns: void
  • setBackground( java.lang.String ) - returns: void
  • setColor( java.lang.String ) - returns: void
  • setDrawingStroke( coldfusion.runtime.Struct ) - returns: void
  • setDrawingStroke( float, int, int, float, [F, float ) - returns: void
  • setRenderingHint( java.awt.RenderingHints$Key, java.lang.Object ) - returns: void
  • setTranparency( double ) - returns: void
  • setXorMode( java.lang.String ) - returns: void
  • sharpen( float ) - returns: void
  • sharpenEdge() - returns: void
  • shear( float, java.lang.String, java.lang.String ) - returns: void
  • shearAxis( double, double ) - returns: void
  • translate( int, int, java.lang.String ) - returns: void
  • translateAxis( int, int ) - returns: void
  • write( java.lang.String, float ) - returns: void
  • writeBase64( java.lang.String, java.lang.String, boolean ) - returns: void

Published Jul. 31, 2007— Reads 28,599 — Feedback 3
Copyright © 2007 SYS-CON Media, Inc. — All Rights Reserved.
Syndicated stories and blog feeds, all rights reserved by the author.
About Ben Nadel
Ben Nadel has worked with ColdFusion for eight years and is a super ColdFusion enthusiast. He blogs regularly about all aspects of Web development on his personal site, http://www.bennadel.com, and does his best to give back to the ColdFusion community through online code demos and his "Ask Ben" blog posts. He is also a Certified Advanced ColdFusion MX7 developer and is one of the lead programmers at Nylon Technology.

In order to post a comment you need to be registered and logged in.

Register | Sign-in

Reader Feedback: Page 1 of 1

The noisy ad is beyond annoying.

I wonder if the CF team consulted with the developer of ImageCFC? It also was basically a wrapper for the underlying Java image functionality. Either way, this looks like an exceptionally useful tool. Do you need to instantiate the object using cfimage? Or is it possible to manipulate an image completely within cfscript?

rename the CodFusion as ColdFusion !


Your Feedback
Michael wrote: The noisy ad is beyond annoying.
Mike Ritchie wrote: I wonder if the CF team consulted with the developer of ImageCFC? It also was basically a wrapper for the underlying Java image functionality. Either way, this looks like an exceptionally useful tool. Do you need to instantiate the object using cfimage? Or is it possible to manipulate an image completely within cfscript?
Sanjeev wrote: rename the CodFusion as ColdFusion !
Latest Cloud Developer Stories
By Pat Romanski
CloudBench Applications, Inc. announced its financial results for the three months and nine months ending September 30, 2009. All amounts are stated in Canadian dollars unless otherwise noted. Revenues from BasicGov, the Company's cloud computing solution for local government, gr...
By Yeshim Deniz
The new contract is an industry first, with CSC being the first Microsoft partner to lead and win a cloud computing services agreement of this scale. Under terms of the contract, CSC will provide Royal Mail Group's 30,000 employees with access to new IT services using Microsoft's...
By John Funnell
Operates in over 170 countries and is one of the world’s leading providers of communications solutions and services. Richard Tarboton talks for MeettheBoss.TV on his role as Head of Energy & Carbon for BT and what they are doing towards reducing carbon emissions.
By Maureen O'Gara
CA is going to put its Agile Planner software on salesforce.com’s Force.com platform in the first half to accelerate development time and give users visibility over their development initiatives to reduce time-to-market. Customers are supposed to be able to accelerate the deploym...
By Maureen O'Gara
Despite its uncertain fate Sun soldiers on. Monday it trotted out a cloud-based multiplatform desktop as a service for K-12 and community colleges that can run Windows, the Mac OS, Linux and Solaris applications to nearly any client device, including its own Sun Ray thin clients....
MORE »
Subscribe to the World's Most Powerful Newsletters
Subscribe to Our Rss Feeds & Get Your SYS-CON News Live!
Click to Add our RSS Feeds to the Service of Your Choice:
Google Reader or Homepage Add to My Yahoo! Subscribe with Bloglines Subscribe in NewsGator Online
myFeedster Add to My AOL Subscribe in Rojo Add 'Hugg' to Newsburst from CNET News.com Kinja Digest View Additional SYS-CON Feeds
Publish Your Article! Please send it to editorial(at)sys-con.com!

Advertise on this site! Contact advertising(at)sys-con.com! 201 802-3021

SYS-CON Featured Whitepapers
Most Read This Week
By Kevin Hoffman
By Cloud News Desk
By Jeremy Geelan
By Kevin Jackson
By Al Mannarino
By Fuat Kircaali
By Jeremy Geelan
By Carmen Gonzalez
By Ernest de Leon
By Dustin Amrhein
By Cloud News Desk
By Aditya Banerjee
ADS BY GOOGLE

Breaking Cloud Computing News
CloudBench Applications, Inc. announced its financial results for the three months and nine months e...
Nov. 27, 2009 05:15 PM EST
MORE »