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 | ||
|---|---|---|---|---|---|
| Hala73 | "Thanks for that, I'll give it a try and let you know how it worked " | Read more » | almost 6 years ago | |||
| Hala73 | "I'll give it a try then, thanks! " | Read more » | almost 6 years ago | |||
| warren | "We're developing a new system based on Infragram, which is more systematic, and can output things like averages, etc. We're testing this out now an..." | Read more » | almost 6 years ago | |||
| warren | "Hi, @Hala73 - Fiji can be installed on a mac, actually -- and ImageJ (same app) on Linux. " | Read more » | almost 6 years ago | |||
| Hala73 | "Thank you, these are plugins for PC but I'll look for something similar that works on a mac. " | Read more » | about 6 years ago | |||
| cfastie | "I don't think calculations at Infragram.org can be used for anything but determining the color of a new image. The Photo Monitoring plugin and Fiji..." | Read more » | about 6 years ago | |||
| csteran | "Thank you so much! " | Read more » | about 6 years ago | |||
| tech4gt | "@csteran actually image-sequencer has the capability to run a sequence of processing steps on an image and provide output of each step separately o..." | Read more » | about 6 years ago | |||
| csteran | "How will the processed image replace the current image?. Like how will this work better than the current image?. , and yes I think I will need a li..." | Read more » | about 6 years ago | |||
| tech4gt | "@warren should i add this in documentation maybe add a section for raspi users complete with installation and setting up instructions ? " | Read more » | about 6 years ago | |||
| warren | "Indeed! I think here it could be good to keep the original data in this case, maybe @csteran has a preference? But we should perhaps add steps and ..." | Read more » | about 6 years ago | |||
| tech4gt | "@warren this gives me another idea, maybe we can add a replaceImage functionality in node as well (maybe as an extension to basic mode) which will ..." | Read more » | about 6 years ago | |||
| tech4gt | "@warren this sound amazing, we can install the image-sequencer on raspi easily via npm and it would work nicely for this use case " | Read more » | about 6 years ago | |||
| warren | "The default app raspicam can be used to take a picture from the commandline, and then you could use Image Sequencer to do the NDVI -- https://gith..." | Read more » | about 6 years ago | |||
| csteran | "I need to do it without internet access, and we were thinking to use a photo command just like you said. Yes, I started learning phyton in order to..." | Read more » | about 6 years ago | |||
| MaggPi | "It may be possible to use computer vision software (opencv) to directly manipulate the images on the PI computer. Check out https://publiclab.org..." | Read more » | about 6 years ago | |||
| warren | "I'm thinking of if we could add a command from Image Sequencer (https://github.com/publiclab/image-sequencer) to the "take photo" command -- do you..." | Read more » | about 6 years ago | |||
| warren | "This is one way to set up a Raspberry Pi to take photos remotely from a computer, using WiFi. It may not be exactly what you're looking for but the..." | Read more » | about 6 years ago | |||
| warren | "Great question, @csteran -- just for a few clarifications, do you need to do it a) without internet access, or do you want to b) have it produce ND..." | Read more » | about 6 years ago | |||
| warren | "Zooniverse link! https://www.theplastictide.com/blog-1/2017/4/24/launching-our-tagging-website-2-days-to-go " | Read more » | about 6 years ago | |||
| warren | "And just to link to what @amirberAgain mentioned about automatic particle detection in #silica #dust pollution: https://publiclab.org/notes/amirbe..." | Read more » | about 6 years ago | |||
| amirberAgain | "Another ask /suggestion : place particles on a polarized film sheet illuminated from below, image with a cross polarizer to remove the background. " | Read more » | about 6 years ago | |||
| warren | "Got some good feedback from @maxliboiron from Newfoundland and http://civiclaboratory.nl -- @maxliboirox: You can't. Not with any accuracy. A few ..." | Read more » | about 6 years ago | |||
| tech4gt | " More info here " | Read more » | about 6 years ago |