Image Sequencer is an online tool for image processing -- based on the idea of a storyboard. Each modification makes a new copy of the image, resulting in a series of images showing each step. It is designed for use in browsers, as well as on the [Raspberry Pi](/pi-camera). This project is supported in part by the [NASA AREN project](/aren) ## Why Image Sequencer is different from other image processing systems in that it's **non-destructive**: instead of modifying the original image, it creates a new image at each step in a sequence. This is because it: * produces a legible trail of operations, to "show your work" for evidential, educational, or reproducibility reasons * makes the creation of new tools or "modules" simpler -- [each must accept an input image, and produce an output image](https://github.com/publiclab/image-sequencer/blob/master/CONTRIBUTING.md) * allows many images to be run through the same sequence of steps - batch processing * works identically in the browser, on Node.js, and on the command line [See this great introduction](/notes/ccpandhare/03-18-2017/developing-image-sequencer-as-a-library) by @ccpandhare. Read more in-depth on the [Image Sequencer GitHub page](https://github.com/publiclab/image-sequencer). Check out the Image Sequencer User Manual by @MaggPi: https://github.com/MargaretAN9/GSOC-2019/blob/master/ImageSequencerUserManual.md [](https://publiclab.org/system/images/photos/000/023/784/original/diagram-workflows.png) **** ## Activities [activities:image-sequencer] **** ## Questions [questions:image-sequencer] **** ## NDVI There's now an "NDVI" feature in MapKnitter -- a beta -- for converting the images you upload with the #NDVI equation. It's set up for red filters only right now, but more will come. It uses Image Sequencer to do the conversion, which is temporary - your map is not affected, so think of it as a "filter" you can turn on. Need help? Ask questions above! How it looks:  ...
| Author | Comment | Last activity | Moderation | ||
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| utobolearning | "One of the best initiative i ever seen on any forum in the educational work. So so greatful to see such a trustworthy innovation. Thanks for updati..." | Read more » | almost 3 years ago | |||
| utobolearning | "This is totally new topic for me. I am learning lot of things so this is also the New. utobo " | Read more » | almost 3 years ago | |||
| nestocean85 | "https://onlinemocktest2.blogspot.com/2020/06/sbi-po-2021-exam-important-information.html good one " | Read more » | over 3 years ago | |||
| liz | "Great news @brendan_stanford ! Thank you for closing the loop on this, and best of luck to the entire classroom :) " | Read more » | over 3 years ago | |||
| brendan_stanford | "Thanks @liz and @cfastie for your advice and patience! Next steps are indeed clear; after some experimentation with @nedhorning's photo monitoring ..." | Read more » | over 3 years ago | |||
| liz | "Thanks @cfastie for this in-depth response! Your experience is literally invaluable. Also great to see @nedhorning's name come up. I'm wondering ne..." | Read more » | over 3 years ago | |||
| cfastie | "Brendan, That's good news. A Rosco 2007 filter was somehow attached to the lens of the RPi camera. That filter passes blue and NIR light but not mu..." | Read more » | over 3 years ago | |||
| brendan_stanford | "@cfastie Hi Chris, Thank you so much for taking the time to consider my problem! I'm afraid I am a relative NDVI neophyte and therefore I do not ..." | Read more » | over 3 years ago | |||
| cfastie | "This is a great question. I don’t have much information about how these photos were made, but I will make some assumptions. I assume the Pi NoIR ca..." | Read more » | over 3 years ago | |||
| liz | "@cfastie i'm wondering if you might advise on this... " | Read more » | over 3 years ago | |||
| brendan_stanford | "The Raspberry Pi is housed in an aluminum enclosure, but the camera points out an airlock porthole on the International Space Station; I am unsure ..." | Read more » | over 3 years ago | |||
| mimiss | "May I ask what material your camera is housed in? Some materials have very high NDVI values, and it looks like this material is so high in comparis..." | Read more » | over 3 years ago | |||
| warren | "Hi, you can use this simpler sequence for that: https://sequencer.publiclab.org/examples/#steps=ndvi,colormap This will just apply NDVI and the c..." | Read more » | almost 4 years ago | |||
| ThomasTaufan | "how to process single multispectral image with the modified webcam and red filter? Because when I saw your example, it is processing 2 images that ..." | Read more » | almost 4 years ago | |||
| mimiss | "Woah! Your work here is awesome and I appreciate how well laid out and easy to follow you've made this process. I like the idea of having a preset..." | Read more » | about 4 years ago | |||
| warren | "Wow, this is so cool, @maggpi - so great to see these software tools in such creative remixings! I love the one where you calibrate, then remove st..." | Read more » | about 4 years ago | |||
| bell621iran | "Wow! This is awesome! Thank you so much for these resources.I will definitely be doing these tips soon! Game Lover - https://games.lol/ " | Read more » | about 4 years ago | |||
| MaggPi | "Version 0.2 available at https://github.com/MargaretAN9/GSOC-2019/blob/master/ImageSequencerUserManual.md#input-format-options Mods include link..." | Read more » | about 4 years ago | |||
| warren | "This is cool! You're working on an Image Sequencer module for this, right? This will be so cool to be able to use in the simple interface at https:..." | Read more » | over 4 years ago | |||
| amazinggames413 | "This is Very very nice article. Everyone should read. Thanks for sharing and I found it very helpful. Don't miss WORLD'S BEST GAMES " | Read more » | over 4 years ago | |||
| tech4gt | " @MaggPi Try it with sudo! I think global packages need to be installed with root user access now! sudo npm i -g image-sequencer " | Read more » | over 4 years ago |