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  • Free Linux video editors [3]

    Well I have written about free video editors for Linux a number of times, this is the third article in this series. It’s taken me a few years to get to this point of discovering good quality software for Linux because there are so many open source projects that people have started and then abandoned,…

  • Time To Reconsider Need For Facebook

    On this blog and others I write, I have criticised Facebook on numerous occasions. The reason for this is simply that Facebook has become so huge and dominant that they are becoming bullies who suck vast amounts of information out of us without our consent and impose very draconian and tyrannical controls over the use…

  • Philips LED Light Bulbs

    Any electronic geek such as myself knows that LEDs used to be these little red, green or orange pilot lights on electrical appliances, just a little speck of light that would tell you a device was powered up or maybe your radio was tuned in correctly. Seven segment displays was another major application of LEDs…

  • Raspberry Pi or HPTC For Livestream Player [5]

    Last time I wrote on this subject I took a look at whether to continue using a Raspberry Pi to play livestreams and video clips, or to take a look at a more conventional HPTC setup with a normal computer. Original attempts to use a normal computer were with the Mini-ITX board and chassis I…

  • Make Your Own Yoghurt

    I’ve always loved having yoghurt in my diet, but for a long time I bought the varieties that have sugar and flavouring added to them, whether it was in a six pack of the small pottles,or a larger 700 g to 1 kg pottle for a few servings. In more recent times looking at healthy…

  • NZ Rail Maps: Using Gimp To Georeference Retrolens Aerial Photos [7]: Extracting Mosaic Tiles

    NZ Rail Maps: Using Gimp To Georeference Retrolens Aerial Photos [7]: Extracting Mosaic Tiles

    So I have been trialling the alternative overlay method with more files and have decided to redo all the mosaics for Auckland so far. This is a few days’ work but as there are already some issues with accuracy in some of the more hilly areas or where the embankment is raised, it is going…

  • HOWTO: Set laptop screen brightness in Lubuntu

    Some laptops have function keys that can be used to adjust screen brightness. These may not be supported on all laptops, however. In that case, there may be the controls in monitor settings or power management to adjust the brightness. In my case I wasn’t able to find anything, so I discovered how to adjust…

  • NZ Rail Maps: Using Gimp To Georeference Retrolens Aerial Photos [6]: Alternate Overlaying Technique

    Today I am going to look at an alternative way of stitching together the source layers. I have to do a set of mosaics for the station of Kamo, which is the northernmost part of Whangarei. From a rail perspective there were two stations there. Just a little south of Kamo there was a coal…

  • NZ Rail Maps: Using Gimp To Georeference Retrolens Aerial Photos [5]: Overlaying Multiple Layers

    NZ Rail Maps: Using Gimp To Georeference Retrolens Aerial Photos [5]: Overlaying Multiple Layers

    So in my last post I showed how to get started in georeferencing with the first overlay. In that post I put the second layer in to show how it would join onto the first layer. The aim of this part is to show how to add additional overlays and how to deal with the…

  • NZ Rail Maps: Using Gimp To Georeference Retrolens Aerial Photos [4]: Getting Started With Overlaying

    NZ Rail Maps: Using Gimp To Georeference Retrolens Aerial Photos [4]: Getting Started With Overlaying

    So now we can look at how we actually do the georeferencing. This happens as a multi part process, and explaining the steps gives you an understanding of how it all works. The basic of georeferencing a historic aerial photo, is that by aligning it to a current aerial photo, of which we know the…

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