Posts Tagged ‘Linux’

I’m Back! I think.

26 January 2017

Well, this is odd. It’s been a bit over a year, I think (too lazy to look and see for sure) since my last posting here. On top of that, this particular post isn’t necessarily my standard fare. It’s probably a mix of rant and quick updates. All ranting is my personal opinion, of course. No pretty pix, those will come later.

So, which first, the rant or the updates? Ah, you figure it out, they’re all mixed together.

Photography wise, it’s been a bust, between building the Vardo (done!), Idaho weather, my dad, and other stuff, I’ve not actually gone out “to do photography”. I’m working on that, though, and you can expect some more pictures this year. Time lapse. Video. Landscapes. Macro. Whatever grabs my attention at the moment. And yes, I did indeed say video, that wasn’t an error.

I’ve written a small script, more a proof of concept idea than anything else, that I plan to video. If it turns out good enough, I might even look into YouTube. My granddaughters want me to start putting my videos up there and I’m tempted. If this project works, I probably will start putting a couple of older videos up and create more. I never expected to get into or enjoy making video but I find I do.

Don’t expect much in the way of audio on my videos. I’ll try and include music based on the input of other people, but I have a beef with the lousy captioning on YouTube and am going to extract my revenge by including captions and no voicing. So there. I swear, I never know whether to laugh or cry when I see the automatically generated captions on most of the YouTube videos. It sucks. The only ones any good seem to be those that go out of their way to include captioning themselves.

This next video project is showing me a bunch of stuff already, and I can’t get out to the Owyhees to film it. Film it…video it…whatever. I have a DJI Phantom 4 and that’s what gave me the idea for this video. Next up, I needed a video recorder that could become your eyes, so I wound up asking around and borrowing a GoPro Hero 4 Black. The video specs for that match well with the video specs for the drone, BUT the Hero 4 is a fixed fisheye. More on that later.

The Hero 4 has no playback capability and the only way you can get any kind of immediate feedback or live feed, is to use their Capture app. Or a third party one. And guess what? Those idiots at GoPro seem to think you absolutely need to log into their servers before you can get any use out of the app. Yeah, right. Waaaay out in the middle of the Owyhees, where I set up for my video on the GoPro and test it, where there’s NO cell service? How in Hades am I supposed to log into their servers from there? Stupid and pointless. However, I did manage to find an older Capture version and that one lets me have live feed and control over the camera to change settings WITHOUT having to log into their freaking servers first. Those of you out there wanting this…look for the newest version prior to 3.x. It also has the older logo. Just be sure and don’t allow your apps to automatically update or it’ll get replaced with the new one. You’d think losing their market share would warn them and that it’s logical that if you want to keep your fan base, you shouldn’t push out an upgrade that makes it impossible to use the app where there’s no service. Especially for a camera intended for extreme stuff out in the middle of nowhere. I guess common sense isn’t part of the job requirement there.

Now about the GoPro fisheye situation. For my wants, the fisheye gives me a great wide field of view, but it does have those pesky fisheye effects. You know, the curved  vertical and horizontal lines that should be straight.

To remove the fisheye effects, there are plenty of tutorials and apps out there. The first I tried was the GoPro PC app. Posts, reviews. blogs all say it has a built-in fisheye fix that’s good. Guess what? Yup, you got it. It, too, requires a server login. Forget it, I’m not gonna look for an older version of that, too. That made it easy to uninstall and discard with only a second or two’s thought.

I moved on to four programs that I already have. I’ve restructured my home systems so I have a laptop that’s just for photography work. On that machine, I have Linux as my OS: Ubuntu Studio. There are some things I don’t like about the OS layout, so I may just migrate to a clean, minimal Ubuntu 16.04 and have only the video and graphics programs that I find work for me. And yes, there is a point to mentioning this.

The four programs I was looking at for the fisheye removal are: Adobe After Effects (Win), daVinci Resolve Free (Win), OpenShot (Win/Linux), and Kdenlive (Linux).

OpenShot was the first I looked into, and while it’s a nice basic editor, it was taking me too long to find out how to deal with the fisheye effect so I dropped that approach. I then went and played with After Effects and it did a reasonable job, but the file size went from 357 MB to 12 GB. HUH? OK, I figured that was user error and I could set the parameters better later or transpose to a different format. At the same time I was playing with After Effects, I was messing about in Kdenlive. That one was not only easy to deal with the fisheye, but it had a couple different ways to do so. After I got done trying After Effects, I then looked into daVinci Resolve. This was just as easy to use as Kdenlive but the free version is apparently time bombed or has a file size or video length restriction. Unlike last time I used it, this time it slapped a watermark on the entire video. I’m going to look into that, but if that’s the case (time bombed or file size) then I’m going to toss it.

So, looking at the various outputs, I was rather surprised to find out that the best resulting corrected video came from my Linux machine: Kdenlive’s Defish filter. Not by a little, but by an easily noticeable difference. File size, quality of resulting video, quality of corrections…Kdenlive was the best. daVinci Resolve was the next, but it had a huge file size as well. That I expected, though, as Resolve doesn’t output the final video, only the feed into the conversion. That I could live with. To be honest, though, when I started looking at these I really didn’t expect the Linux program to come out ahead like that. That was a very welcome bit of support for my Linux love.

I’m going to take a look at PiTiVi (also Linux) later and see how it compares to Kdenlive, but going forward right now it looks like for my project I’ll be using Kdenlive as my editor.

On the writing front, I’ve been assembling an ebook with the various tales of the Pa’adhe. It has a cover for each story plus the ebook itself. I need to create three more covers, so I’m waiting for the weather here to get better so I can go get the pictures I need. We’ve busted the local records across the board for snow this winter. We got more than the winter of 1985, and that was on the ground only about two weeks. This winter’s snow has been on the ground for over a month now, and it’s been piled high. Buildings have collapsed as a result of the amount and type of snow.

I’ve sure enjoyed my first year retired, but funny enough, I sort of seem to be way more busy than when I was working. And I’ve still not gotten back into my radio stuff. Maybe this year!