Image Sequencer
image-sequencer

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 [![diagram-workflows.png](https://publiclab.org/system/images/photos/000/023/784/large/diagram-workflows.png)](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: ![Screen_Shot_2018-05-07_at_12.16.38_PM.png](https://publiclab.org/system/images/photos/000/024/833/large/Screen_Shot_2018-05-07_at_12.16.38_PM.png) ...


Author Comment Last activity Moderation
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 » about 5 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 » about 5 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 » about 5 years ago
MaggPi "I did this! but I seem to get an access error. Is there a permission necessary? Thank You pi@raspberrypi:~ $ npm install -g image-sequencer npm W..." | Read more » about 5 years ago
warren " We should indeed be able to hyperlink the table of contents. Check out the links in: https://github.com/publiclab/plots2/tree/master/README.md h..." | Read more » about 5 years ago
jenjimah " Wow, this manual is really thorough and well explained! I have a minor technical comment: P5 - Tulip picture is referred to as Figure x, Figure ..." | Read more » about 5 years ago
MaggPi " @warren, got this, posted to the github site and will transition to markdown with the next update Yhx " | Read more » about 5 years ago
warren "Oh wow - here's the PDF - i had trouble reading the docx file at first! image-sequencer-manual.pdf @maggpi have you considered writing this in M..." | Read more » about 5 years ago
warren " Hi @maggPi, this is looking great! You should chime in at the weekly check-in at https://github.com/publiclab/simple-data-grapher/issues/41 and I'..." | Read more » about 5 years ago
vibhordelgupta "@jywarren Thanks a ton for the substantive feedback! About the changes, here is what I have in mind: Regarding the UI testing harness, I had the..." | Read more » about 5 years ago
warren " Hi Vibhor! Sorry we've been slow getting responses in to this. Thanks for the proposal! One thing that I wanted to ask a bit more about was how th..." | Read more » about 5 years ago
puneetbindal8989 "Thanks lot, I will do asap. " | Read more » over 5 years ago
bansal_sidharth2996 " Hi, please submit your proposal on the GSOC official website at the earliest. Thanks " | Read more » over 5 years ago
bansal_sidharth2996 " Hi thanks for writing the proposal. We expect dates to be written in the proposal. So, please mention the dates with the week number. Also, please..." | Read more » over 5 years ago
bansal_sidharth2996 " I really like your proposal Few suggestions We are looking forwards for supportive folks. Make sure to do 1. at least one PR review each week and..." | Read more » over 5 years ago
warren "Also, I wonder if the inverted values are due to your using a blue not red filter? I believe the ndvi equation needs to be reversed too if you do t..." | Read more » over 5 years ago
warren " Oh that's super, we'd love to see it. Thanks! " | Read more » over 5 years ago
petter_mansson1 "At the moment I have only the code on private repository. I will conduct an experiment where I try to look for changes in NDVI values corresponding..." | Read more » over 5 years ago
warren " Hi! Very cool! I'm curious if you've posted your code anywhere, I'd love to see it! " | Read more » over 5 years ago
petter_mansson1 "EDIT: Did some further testing and it was an error on my end. Used the wrong module to colormap the pictures. Ill leave the rest of the comment tho..." | Read more » over 5 years ago
MaggPi "Just to close out this question, updated colormap info is at: https://publiclab.org/notes/MaggPi/01-14-2019/updated-image-sequencer-colormaps " | Read more » over 5 years ago
warren " Great to hear from you @maggpi! This is tremendous! " | Read more » over 5 years ago
warren "@warren awards a barnstar to MaggPi for their awesome contribution! " | Read more » over 5 years ago
warren "These look fantastic. Let's merge in a commit with these and consider additions or changes in a follow-up issue! Great work, @maggpi! " | Read more » over 5 years ago