Building Panoramic Images in The GIMP
Obviously, Pandora can't cope well in every circumstance. Different amounts of light between photos, particularly when your photos include sky or water, make it difficult to create a consistent picture. This is most notable when shooting toward the sun. Moving subjects, such as cars or people, can result in the occurrence of ghosted images. Cityscapes containing a lot of right angles can emerge imperfectly when the angle of each photo is not perfect. Finally, if the source photos are not ideal, your results won't be either. A fixed tripod or at least holding the camera close to you with your elbows against your body gives a standard height and angle that can make your photos much easier to line up. The better your source photos, the less effort you need to use in making your panoramas fantastic.
As with most things, you can find tutorials and hints on creating panoramas on the Net. By using Pandora, it's possible for a rank amateur to come up with some great results, even with a limited knowledge of The GIMP and layers. The picture in Figure 4 shows a successful scene, where the sky and water tones are consistent and the edges are lined up.
Pandora is a small download from the Shallow Sky Web site: www.shallowsky.com/software/pandora.
Panoguide is the definitive resource for panoramic photos: www.panoguide.com.
Red Skies at Night (previously mentioned in LJ, April 2003) has some great GIMP tutorials for digital photography enthusiasts: cs.uhh.hawaii.edu/~jeschke/photography/articles/gimp/tutorials.shtml.
Andrew Burton (firstname.lastname@example.org) lives in Sydney, Australia, where there is plenty of inspiration for taking panoramic photos.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
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With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide