Re: [Mlt-devel] NDVI processing
Here's the link to the theoretical background of NIR-VIS: http://agribotix.com/blog/2014/6/10/misconceptions-about-uav-collected-ndvi-imagery-and-the-agribotix-experience-in-ground-truthing-these-images-for-agriculture -S -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
Hi Stefan, I finally got the filters and had time to mod a camera. Copying the ndvi.so into my system's freior-1 libdir worked and I can access all parameters (?) in KDEnLive which makes testing much easier :). Or do I see all parameters? Screenshot is attached. Never mind - I found the plugin doc and created an XML file for KDEnLive (attached). With that it works great :). In the screenshot you sent, I noticed that the Color Map parameter was not exposed by KDENLIVE. With the XML file, does KDENLIVE allow you to change the color map? Any suggestions on other color maps that should be added or what should be default? A few ideas from first impression: A channel chooser (choose the source channel for NIR and VIS from R, G or B) would be useful (as written before) for people who use non-infrablue filters. I don't know how easy that would be to implement, but a legend/colorbar on the side which shows the actual used palette and the mapped NDVI values would probably also be useful. From the feedback on my first blog post on DIYD, it seems that there is an alternative formula used sometimes with footage from drones, which would simply be NIR-VIS. Integration of this formula and a selector to choose would probably be useful as well :). The channel chooser and formula selection shouldn't be too hard to add. The legend might be a little tricky. Frei0r doesn't provide a good way to render text. So I would have to add a dependency on some other library like pango or Qt. I'll see if I can have a look at adding those things next week. ~BM -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
Hi, On 07/24/2014 03:54 PM, Brian Matherly wrote: In the screenshot you sent, I noticed that the Color Map parameter was not exposed by KDENLIVE. With the XML file, does KDENLIVE allow you to change the color map? Any suggestions on other color maps that should be added or what should be default? Yup, with the XML file things work perfectly! I'm testing the hell out of it at the moment. :D With my new video PC that actually is fun :). All works realtime... As for the color maps, at first glance, I think rainbow or heat should be default. But I'm going to make a nice video which will show the current status and post it to DIYD. I guess, there will be some feedback coming then. The channel chooser and formula selection shouldn't be too hard to add. The legend might be a little tricky. Frei0r doesn't provide a good way to render text. So I would have to add a dependency on some other library like pango or Qt. How about Cairo? There already are some frei0r effects depending on Cairo, so chances are good that package managers install Cairo as dependency with frei0r anyway. -S -- (o_ Stefan Gofferje| SCLT, MCP, CCSA //\ Reg'd Linux User #247167 | VCP #2263 V_/_ Heckler Koch - the original point and click interface -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
Just a short update. I'm still waiting for my filters. As soon as I have them, I will take some sample footage and test. -S -- (o_ Stefan Gofferje| SCLT, MCP, CCSA //\ Reg'd Linux User #247167 | VCP #2263 V_/_ Heckler Koch - the original point and click interface -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
Hi, On 06/30/2014 08:38 AM, Dan Dennedy wrote: Stefan, Brian reached a good working state on the NDVI plugin, and today I pushed it into the upstream git repos. On Tuesday July 1, there will be a new version of Shotcut (14.07) that will include the filter. The filter is not yet exposed in the Shotcut GUI, but it includes the repo head versions of MLT and frei0r. And it is cross-platform for your diverse community. So, people will have a fairly convenient way to run melt with the NDVI filter: Linux console: Shotcut.app/melt infrablue.mp4 -attach frei0r.ndvi 0=heat Windows cmd.exe: Program Files\Shotcut\melt infrablue.mp4 -attach frei0r.ndvi 0=heat OS X terminal: /Applications/Shotcut.app/Contents/MacOS/melt infrablue.mp4 -attach frei0r.ndvi 0=heat Parameter docs here: http://www.mltframework.org/bin/view/MLT/FilterFrei0r-ndvi Want to do something with the result? Add -consumer xml:ndvi.mlt to the above command line and then open the .mlt file with Shotcut. You can give the .mlt file any name you want; it is a MLT XML file. Great, I'll have a look at it as soon as I can and got my filters! I'm still mostly working with KDEnLive but I'm testing shortcut every time a new release comes out :). If I may, I would like to suggest 2 additional parameters which would select the channels for NIR and VIS (red, green, blue). That would make the filter also compatible with red filters as used for e.g. the Moebius camera (they have NIR in the blue channel and VIS in the red channel) and various others. -S -- (o_ Stefan Gofferje| SCLT, MCP, CCSA //\ Reg'd Linux User #247167 | VCP #2263 V_/_ Heckler Koch - the original point and click interface smime.p7s Description: S/MIME Cryptographic Signature -- Open source business process management suite built on Java and Eclipse Turn processes into business applications with Bonita BPM Community Edition Quickly connect people, data, and systems into organized workflows Winner of BOSSIE, CODIE, OW2 and Gartner awards http://p.sf.net/sfu/Bonitasoft___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
If I may, I would like to suggest 2 additional parameters which would select the channels for NIR and VIS (red, green, blue). That would make the filter also compatible with red filters as used for e.g. the Moebius camera (they have NIR in the blue channel and VIS in the red channel) and various others. Seems easy enough. I think I might wait until after you have tried it out - in case any other ideas come up while you are using it. ~Brian -- Open source business process management suite built on Java and Eclipse Turn processes into business applications with Bonita BPM Community Edition Quickly connect people, data, and systems into organized workflows Winner of BOSSIE, CODIE, OW2 and Gartner awards http://p.sf.net/sfu/Bonitasoft ___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
On Thu, Jun 19, 2014 at 2:45 AM, Stefan Gofferje li...@home.gofferje.net wrote: On 06/19/2014 07:47 AM, Brian Matherly wrote: That's a long time to wait. What about one of the 54000 DIY-Drones members? Does anyone have any footage they could share? http://diydrones.com/profiles/blogs/development-of-ndvi-postprocessing-plugin-for-frei0r-the-mlt -- (o_ Stefan Gofferje| SCLT, MCP, CCSA //\ Reg'd Linux User #247167 | VCP #2263 V_/_ Heckler Koch - the original point and click interface Stefan, Brian reached a good working state on the NDVI plugin, and today I pushed it into the upstream git repos. On Tuesday July 1, there will be a new version of Shotcut (14.07) that will include the filter. The filter is not yet exposed in the Shotcut GUI, but it includes the repo head versions of MLT and frei0r. And it is cross-platform for your diverse community. So, people will have a fairly convenient way to run melt with the NDVI filter: Linux console: Shotcut.app/melt infrablue.mp4 -attach frei0r.ndvi 0=heat Windows cmd.exe: Program Files\Shotcut\melt infrablue.mp4 -attach frei0r.ndvi 0=heat OS X terminal: /Applications/Shotcut.app/Contents/MacOS/melt infrablue.mp4 -attach frei0r.ndvi 0=heat Parameter docs here: http://www.mltframework.org/bin/view/MLT/FilterFrei0r-ndvi Want to do something with the result? Add -consumer xml:ndvi.mlt to the above command line and then open the .mlt file with Shotcut. You can give the .mlt file any name you want; it is a MLT XML file. -- +-DRD-+ -- Open source business process management suite built on Java and Eclipse Turn processes into business applications with Bonita BPM Community Edition Quickly connect people, data, and systems into organized workflows Winner of BOSSIE, CODIE, OW2 and Gartner awards http://p.sf.net/sfu/Bonitasoft ___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
On 06/19/2014 07:47 AM, Brian Matherly wrote: That's a long time to wait. What about one of the 54000 DIY-Drones members? Does anyone have any footage they could share? I will post a request but as it's not yet possible to easily postprocess the video, there's probably not much video yet. Publiclab is just coming out with a modified version of the Mobius camera. http://store.publiclab.org/collections/diy-infrared-photography/products/infragram-point-shoot-plant-cam http://publiclab.org/notes/mathew/04-29-2014/a-wratten-25a-replacement-from-rosco Some more on that: http://publiclab.org/notes/cfastie/04-17-2014/mobius-and-nir Example image: http://publiclab.org/notes/mathew/04-30-2014/rosco-replacements-for-wratten-25a-pt-2 -S -- (o_ Stefan Gofferje| SCLT, MCP, CCSA //\ Reg'd Linux User #247167 | VCP #2263 V_/_ Heckler Koch - the original point and click interface smime.p7s Description: S/MIME Cryptographic Signature -- HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing Easy Data Exploration http://p.sf.net/sfu/hpccsystems___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
On 06/17/2014 08:07 PM, Dan Dennedy wrote: Are the IR and VIS videos coming from different unsynchronized cameras? Do you also need functions to align the images spatially and temporally? I think, that's a possibility but as far as I can tell, most grassroots environmentalists use a single camera with some kind of filter which puts the IR in the red channel and the visible spectrum in the blue channel or similar. Typical is a Rosco 2007 filter. Here are the parameters for that filter: http://www.rosco.com/filters/SED.cfm?titleName=R2007:%20Storaro%20BlueimageName=../images/filters/roscolux/2007.jpg But having the possibility to do that could potentially create more precise results because the greyscale VIS footage would contain R, G and B information as opposed to only B and a tiny bit of G when using a single camera. One other thing that people often do is simply remove the IR cut filter from a lens so they get a composite of R, G, B and lots of IR. That's fairly tricky to postprocess too. For GIMP I wrote a short tutorial on that here: http://stefan.gofferje.net/uav/170-ir-photos-with-the-boscam-hd19-part-1 But to my knowledge that’s rarely used for creating NDVI because the VIS red information kinda messes with the IR - the cameras don't save the information what is VIS red and what is IR. I have a sheet of Rosco 2007 and a few lenses on order and I recently made a short video about how to postprocess pure IR footage with KDEnLive (http://stefan.gofferje.net/uav/199-video-ir-video-postprocessing). In 2 or 3 weeks I should be able to produce some sample footage - With Rosco 2007 filter - IR composite (lens without IR cut) - Pure IR (lens with IR passthrough filter) -S -- (o_ Stefan Gofferje| SCLT, MCP, CCSA //\ Reg'd Linux User #247167 | VCP #2263 V_/_ Heckler Koch - the original point and click interface smime.p7s Description: S/MIME Cryptographic Signature -- HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing Easy Data Exploration http://p.sf.net/sfu/hpccsystems___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
Are the IR and VIS videos coming from different unsynchronized cameras? Do you also need functions to align the images spatially and temporally? I think, that's a possibility but as far as I can tell, most grassroots environmentalists use a single camera with some kind of filter which puts the IR in the red channel and the visible spectrum in the blue channel or similar. Typical is a Rosco 2007 filter. Here are the parameters for that filter: http://www.rosco.com/filters/SED.cfm?titleName=R2007:%20Storaro%20BlueimageName=../images/filters/roscolux/2007.jpg But having the possibility to do that could potentially create more precise results because the greyscale VIS footage would contain R, G and B information as opposed to only B and a tiny bit of G when using a single camera. As long as image alignment isn't needed, I think that Frei0r would be a good place to add the feature. Dan, what is your opinion of Frei0r? With only two commits in over a year, will there ever be another Frei0r release? Stefan, can you provide some sample IR footage with the IR in the red and VIS in the blue channel like you described above? ~Brian -- HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing Easy Data Exploration http://p.sf.net/sfu/hpccsystems ___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
On 06/18/2014 03:51 PM, Brian Matherly wrote: Stefan, can you provide some sample IR footage with the IR in the red and VIS in the blue channel like you described above? Yup, in 2 or 3 weeks. I'm waiting for the filter sheet and some lenses to arrive. -S -- (o_ Stefan Gofferje| SCLT, MCP, CCSA //\ Reg'd Linux User #247167 | VCP #2263 V_/_ Heckler Koch - the original point and click interface smime.p7s Description: S/MIME Cryptographic Signature -- HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing Easy Data Exploration http://p.sf.net/sfu/hpccsystems___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
On Wed, Jun 18, 2014 at 5:51 AM, Brian Matherly pez4br...@yahoo.com wrote: As long as image alignment isn't needed, I think that Frei0r would be a good place to add the feature. Dan, what is your opinion of Frei0r? With only two commits in over a year, will there ever be another Frei0r release? frei0r is fine based on the description. I do not think the commit level should be a criteria. There will be another release if it makes sense. In the meantime, Shotcut users can benefit immediately as well as people using the melt or kdenlive build scripts. -- +-DRD-+ -- HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing Easy Data Exploration http://p.sf.net/sfu/hpccsystems ___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
Stefan, can you provide some sample IR footage with the IR in the red and VIS in the blue channel like you described above? Yup, in 2 or 3 weeks. I'm waiting for the filter sheet and some lenses to arrive. That's a long time to wait. What about one of the 54000 DIY-Drones members? Does anyone have any footage they could share? I put together a proof of concept using frei0r: https://github.com/pez4brian/frei0r/commit/7c0704a1d5f4a418b17f6f2ead11067e7a0680f7 Since I don't have any example video files, I used an example image I found here: http://infrapix.pvos.org/ The melt command is: melt river.jpg -attach frei0r.ndvi The output is a grayscale image with NDVI mapped to values between 0 and 255. I can add the frei0r heat filter and get colors that are very similar to the image generated by the infrapix site. The melt command to include the heat map is: melt river.jpg -attach frei0r.ndvi -attach frei0r.colortap 0=heat I think that we will eventually want the false color mapping to be done in the ndvi filter (rather than being applied by a downstream filter) because the output grayscale image will only have 256 possible values that can be mapped to colors. But there are 65536 (256x256) possible NDVI values. So some resolution will be lost when mapping from grayscale. Also, if you search around, I see different color mappings being used... Earth tones: http://earthobservatory.nasa.gov/Features/MeasuringVegetation/Images/global_ndvi_19990921.jpg Green represents vegetation: http://en.wikipedia.org/wiki/File:NDVI_062003.png Red represents vegetation: http://i.publiclab.org/system/images/photos/000/002/682/original/IMG_0093a_NDVI_Color_2Cam.jpg There is a free app out there called Fiji that processes infrablue images: http://event38.wikispaces.com/NDVI+Processing+in+Fiji It includes a host of configuration options including the ability to scale the NIR channel and configure a custom color mapping. It would be worth considering if any of those configuration options should be added to the filter. ~BM -- HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing Easy Data Exploration http://p.sf.net/sfu/hpccsystems ___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
On Mon, Jun 16, 2014 at 10:41 AM, Stefan Gofferje li...@home.gofferje.net wrote: Hi, On 06/16/2014 07:47 PM, Brian Matherly wrote: NDVI = (IR - VIS) / (IR + VIS) What is the equation for VIS? VIS = (G + B) / 2 ? No, usually the infrablue filters don't let any green pass, so in this case, VIS would be the blue channel and IR the red channel. Are negative NDVI values rounded to zero? No, they appear. I would have to read up on the details, but I believe that the result is treated as signed byte, i.e. the center of the greyscale equals NDVI value of 0, Maximal brightness 1 and minimal brightness -1. I'm not so good at explaining but maybe this GIMP tutorial can shed some light on that :). http://publiclab.org/notes/warren/10-27-2011/video-tutorial-creating-false-color-ndvi-aerial-wetlands-imagery Are the IR and VIS videos coming from different unsynchronized cameras? Do you also need functions to align the images spatially and temporally? I've noticed that some people prefer a mapping that colors vegetation green. But that wouldn't be a standardized NDVI image then :). I doubt the frei0r heat map will do that. If someone goes through the trouble of making a filter for NDVI, it probably wouldn't be that hard to make a custom color map while they are at it. That is way beyond my coding skills, so I can't comment on that. But of course, I would assume that the possibility to change some settings would be useful. Would anybody be interested in implementing it? I don't personally have any interest, but I could always be persuaded :) Well, considering the current boom in personal environmentalism (see publiclab.org), the citizen drone movements (see diydrones.com), and the combination of both (see conservationdrones.org) you would not only be my personal hero but also the hero of at least half of the 54000 DIY-Drones members (I would of course write a post about that there :) ) plus Linux (KDEnLive, Shortcut, etc.) would be the first platform which can create NDVI videos in a single rather simple step by just applying one filter in an editor :). -S -- (o_ Stefan Gofferje| SCLT, MCP, CCSA //\ Reg'd Linux User #247167 | VCP #2263 V_/_ Heckler Koch - the original point and click interface -- HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing Easy Data Exploration http://p.sf.net/sfu/hpccsystems ___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
I'm using modified cameras from multicopter platforms and would like to create NDVI false color footage. Generally, I'm using KDEnLive but I'm also having an eye on Shortcut. NDVI imagery is usually created with a camera which has no IR cut filter but an infrablue filter (e.g. Rosco 2007). The resulting footage has visible light in the blue channel and IR in the red channel. You then take each channel, convert it to greyscale and create the NDVI image according to this math: NDVI = (IR - VIS) / (IR + VIS) What is the equation for VIS? VIS = (G + B) / 2 ? Are negative NDVI values rounded to zero? The resulting greyscale image is then usually luma-mapped to a gradient. The luma-mapping is already available in the frei0r package (Color Effect/heat). I've noticed that some people prefer a mapping that colors vegetation green. I doubt the frei0r heat map will do that. If someone goes through the trouble of making a filter for NDVI, it probably wouldn't be that hard to make a custom color map while they are at it. Would MLT be the right point to have this math processing? Either MLT or Frei0r. The advantage of Frei0r is that the filter could be available in applications that don't use MLT (libav, etc). The disadvantage of Frei0r is that there doesn't seem to be much active development on it anymore. Maybe it has every filter anyone could ever want and doesn't have any bugs. Or maybe people have lost interest. I'm not sure how to tell. Would anybody be interested in implementing it? I don't personally have any interest, but I could always be persuaded :) NDVI imagery is a great tool for vegetation health assessment and since it's nowadays very easy to hack all kinds of cameras to produce infrablue imagery, it's quickly gaining popularity in the grass-roots environmentalist scene. ~BM -- HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing Easy Data Exploration http://p.sf.net/sfu/hpccsystems ___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
Re: [Mlt-devel] NDVI processing
Hi, On 06/16/2014 07:47 PM, Brian Matherly wrote: NDVI = (IR - VIS) / (IR + VIS) What is the equation for VIS? VIS = (G + B) / 2 ? No, usually the infrablue filters don't let any green pass, so in this case, VIS would be the blue channel and IR the red channel. Are negative NDVI values rounded to zero? No, they appear. I would have to read up on the details, but I believe that the result is treated as signed byte, i.e. the center of the greyscale equals NDVI value of 0, Maximal brightness 1 and minimal brightness -1. I'm not so good at explaining but maybe this GIMP tutorial can shed some light on that :). http://publiclab.org/notes/warren/10-27-2011/video-tutorial-creating-false-color-ndvi-aerial-wetlands-imagery I've noticed that some people prefer a mapping that colors vegetation green. But that wouldn't be a standardized NDVI image then :). I doubt the frei0r heat map will do that. If someone goes through the trouble of making a filter for NDVI, it probably wouldn't be that hard to make a custom color map while they are at it. That is way beyond my coding skills, so I can't comment on that. But of course, I would assume that the possibility to change some settings would be useful. Would anybody be interested in implementing it? I don't personally have any interest, but I could always be persuaded :) Well, considering the current boom in personal environmentalism (see publiclab.org), the citizen drone movements (see diydrones.com), and the combination of both (see conservationdrones.org) you would not only be my personal hero but also the hero of at least half of the 54000 DIY-Drones members (I would of course write a post about that there :) ) plus Linux (KDEnLive, Shortcut, etc.) would be the first platform which can create NDVI videos in a single rather simple step by just applying one filter in an editor :). -S -- (o_ Stefan Gofferje| SCLT, MCP, CCSA //\ Reg'd Linux User #247167 | VCP #2263 V_/_ Heckler Koch - the original point and click interface smime.p7s Description: S/MIME Cryptographic Signature -- HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing Easy Data Exploration http://p.sf.net/sfu/hpccsystems___ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
