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Image Sequencer
activity: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 "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 » over 2 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 » over 2 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 3 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 3 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 3 years ago
MaggPi " @warren, got this, posted to the github site and will transition to markdown with the next update Yhx " | Read more » about 3 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 3 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 3 years ago
cheneyshreve ":smiley: " | Read more » almost 4 years ago
warren "Just a note to self - as we plan out auto-registration features for this, could be good to look at #image-registration ! " | Read more » almost 4 years ago
warren "Cool! We've tested blue filters with Raspberry Pi cameras, and it works well although the separate camera technique does result in cleaner separati..." | Read more » about 4 years ago
xose "During the leptos development we bought this board. We'are now playing with a point and shoot NDVI with raspi. I'll give the "IVMECH" board a chanc..." | Read more » about 4 years ago
tech4gt "This is so cool @warren " | Read more » about 4 years ago
warren "@imvec @xose too! " | Read more » about 4 years ago
warren "@tech4gt @ccpandhare check it out! :-) " | Read more » about 4 years ago
tech4gt "@jywarren this is awesome!!! :D " | Read more » about 4 years ago
warren "Probably! Can you point me at a MODIS source with bands youre interested in? " | Read more » about 4 years ago
eustatic "hunh, can you do this with MODIS? " | Read more » about 4 years ago
ccpandhare "@warren wow this looks very promising!! :-D " | Read more » about 4 years ago
jbreen "@warren I think you may have stumped me. Have you looked at GloVis? glovis.usgs.gov " | Read more » about 4 years ago
warren "@wward1400 @adam-griffith @MicheleTobias @lprashad @eustatic @nedhorning @cfastie you might like this little experiment too! " | Read more » about 4 years ago
warren "@ccpandhare @tech4gt exciting! @jbreen - you'd know this... are there any tiles available for LANDSAT's near-infrared bands? Especially like NGB t..." | Read more » about 4 years ago