Programming Web Graphics with Perl & GNU Software
Overall, I was quite impressed by Shawn's work on this subject. My very few complaints are:
Black and white images made it difficult to see artifacts in side-by-side image format comparisons.
Chapter 2 gave Perl code first, then mentioned modules described in later chapters. I thought I'd missed something until I read past the code.
Chapter 3 mentioned alignment with “text flow” but did not define what that means. (It refers to alignment with window edges, table or cell frames, and so forth.)
These problems are minor and stood out only because I was specifically doing a review. They don't distract from the main purpose of the book, which is to guide developers in generating web graphics programmatically. The real meat of the book—the in-depth API descriptions—far outweighs any of the smaller issues.
After reading the book, I must say I was initially disappointed with the lack of reference to some tools, such as WhirlGIF for animations. Then I thought more about the title of the book and how it does mention “GNU” specifically. If you live and breathe only GNU, this text is perfect for you. If you are interested in GNU as well as other options, it will fill only part of your needs. Still, it is a fairly solid part, and definitely a great place to start when learning to program web graphics on the fly.
Fast/Flexible Linux OS Recovery
On Demand Now
In this live one-hour webinar, learn how to enhance your existing backup strategies for complete disaster recovery preparedness using Storix System Backup Administrator (SBAdmin), a highly flexible full-system recovery solution for UNIX and Linux systems.
Join Linux Journal's Shawn Powers and David Huffman, President/CEO, Storix, Inc.
Free to Linux Journal readers.Register Now!
- Ubuntu Online Summit
- Devuan Beta Release
- The Qt Company's Qt Start-Up
- Download "Linux Management with Red Hat Satellite: Measuring Business Impact and ROI"
- May 2016 Issue of Linux Journal
- The US Government and Open-Source Software
- Open-Source Project Secretly Funded by CIA
- The Death of RoboVM
- New Container Image Standard Promises More Portable Apps
- EnterpriseDB's EDB Postgres Advanced Server and EDB Postgres Enterprise Manager
In modern computer systems, privacy and security are mandatory. However, connections from the outside over public networks automatically imply risks. One easily available solution to avoid eavesdroppers’ attempts is SSH. But, its wide adoption during the past 21 years has made it a target for attackers, so hardening your system properly is a must.
Additionally, in highly regulated markets, you must comply with specific operational requirements, proving that you conform to standards and even that you have included new mandatory authentication methods, such as two-factor authentication. In this ebook, I discuss SSH and how to configure and manage it to guarantee that your network is safe, your data is secure and that you comply with relevant regulations.Get the Guide