Saturday, February 27. 2010Camcorder FAIL![]() “It’s a Sony!” This camcorder relies on a docking station to provide connectors for power, FireWire and USB. However, the dock didn’t get a tripod mount. So, you have to commit something like that to get a live DV stream. In addition, the camera is only loosely attached to the dock, making an additional rubber band necessary. Thursday, February 25. 2010Work around the image scaling "bug"![]() ![]() Eric Brasseur explained a “bug” in the scaling algorithm of current image processing software. It’s not really a bug, technically, or mathematically. Calculating the numerical average of the surroundings of a pixel as the new color value is a pretty correct approach to scale an image down—if it’s seen as a data matrix. Rather, it’s visually not the thing you’d expect. Technically speaking, the problem is that “the computations are performed as if the scale of brightnesses was linear while in fact it is an exponential scale.” In mathematical terms: “a gamma of 1.0 is assumed while it is 2.2.” Here’s an example of what might occur: The wrong way:
Obviously, this might not be what you intended. The right way: Continue reading "Work around the image scaling "bug""
Posted by Stephan Paukner
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Droid and iPhone dislike cheap USB chargers unless...![]() ... you have an electronic hacker in your neighborhood. I bought the cheap Chinese solar USB charger revolt “4 Seasons” and wanted to use it to charge my Motorola Milestone/Droid or other devices while travelling by train or bike or during a hike. Unfortunately, it only provided power to “dumb” devices like not-so-smart phones or USB On-The-Go hard disks. When I connected it to my Milestone, the phone didn’t jump to the charging state. WTF? It turned out that modern smartphones like Milestone/Droid or iPhone rely on a properly implemented USB standard, what means that it’s not enough that the two outermost USB pins carry the needed voltage, but the inner pins must also provide a minimal “data voltage”. The problem is described here, and here is a DIY solution. Thanks go to my work mate Wolfi for hacking the solar charger successfully. Tuesday, February 23. 2010SCOTTY mobil (vorerst) nicht für Android![]() From: me From: me From: ÖBB Tja, das ist Schade. Auf welche Weise sich dennoch – wenn auch nur in unbefriedigendem Ausmaß – die Fahrpläne von VOR/ÖBB/Wiener Linien auf Android-Handys abrufen lassen, erzähle ich in einem separaten Artikel. Tuesday, February 2. 2010Syncing Symbian to Google: SOLVED![]() I found out how to get all my calendar entries into Google: Sync the events into a single iCalendar file using OpenSync’s Sunbird calendar plugin and import this into your Google calendar. In Sunbird I exported an empty calendar into a local iCalendar file and used this as a starting point; a plain empty file was not enough. Unfortunately, there is a known annoying bug preventing entries that are older than one month from getting pushed to your Android smartphone—only noted as a “small” bug by Google, though. You’ll have to re-save those entries in the web calendar to update their modification time and have them synced to your phone. This, however, won’t work by updating their LAST-MODIFIED time stamps in the iCalendar file prior to the import.
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