Community research

stevie commented on Is the Purple Air sensor an EPA-validated tool? about 1 month ago

Hi! tagging in a couple people who might be able to help answer: @Ag8n, @Cbarnes9 , @OrionAllgai...

liz commented on Replicating IBM's Lensless, Holographic, RPi Microscope? about 1 month ago

Hi @amirberAgain , this post's author links to one of your research notes, and I'm wondering if y...

liz commented on Open source spectrometer for detecting laser harmonics. about 1 month ago

@liz awards a barnstar to wln215 for their awesome contribution!

liz commented on Any experience with knockoff temperature sensors? about 1 month ago

Hi @wln215 , I just spotted this question and wanted to at least respond in appreciation for you ...

keshav_sethi0004 commented on GSOC 2020 Week 5 (coding Period Week-1)@Spam Management Dashboard about 1 month ago

Thank you Liz for your valuable suggestions.

liz commented on GSOC 2020 Week 5 (coding Period Week-1)@Spam Management Dashboard about 1 month ago

Thank you Keshav, this is all looking great! i left more detailed discussion on your PR. Thank yo...

icarito commented on Convening diversity and inclusion initiatives across open source projects about 1 month ago

I believe it should be possible to work around the issue by "escaping" the @ symbol. Please excus...

cfastie commented on NDVI results from modified camera is inaccurate about 1 month ago

The "WB 0%" photos seem to produce the most meaningful NDVI images for this subject. The photo ha...

cfastie commented on NDVI results from modified camera is inaccurate about 1 month ago

The "histogram" is a frequency distribution of brightness values (DNs, 0-255) for all of the pixe...

ThomasTaufan commented on NDVI results from modified camera is inaccurate about 1 month ago

This is the original image This is taken with WB 0% This is taken with WB 25% This is taken...

ThomasTaufan commented on NDVI results from modified camera is inaccurate about 1 month ago

I have done white balancing manually with the range from the left to the right I defined as 0% - ...

ThomasTaufan commented on NDVI results from modified camera is inaccurate about 1 month ago

The histogram of one of the channels was probably stretched (one or more extreme points at either...

cfastie commented on NDVI results from modified camera is inaccurate about 1 month ago

I used the standard NDVI equation. The histogram of one of the channels was probably stretched (o...

ThomasTaufan commented on NDVI results from modified camera is inaccurate about 1 month ago

I have successfully used your color map, but the result is different. What is the equation of NDV...

cfastie commented on Why we see red image when using blue filter? about 1 month ago

With a red filter, photos will be bluish if the blue channel (which is used for NIR) is brighter ...

asoamarachi commented on How do you write and post in the public lab community? Asking for our developers! about 1 month ago

Cool stuff here! Thanks for your response! @kgradow1 I think an 8th question will be helpful to...

icarito commented on Convening diversity and inclusion initiatives across open source projects about 1 month ago

Hi this is just a test to see how URLS with @ symbols behave: https://medium.com/@sunnydeveloper...

wln215 commented on Does anyone know the upper spectrum range of the Pi NoIR Camera V2? about 1 month ago

I believe the NoIR Camera has an upper limit of 909 nm. I can't find the source of this info, but...

liz commented on mapknitter export stuck about 1 month ago

awesome! looks like you already closed this issue, but i'm not sure if mapknitter.org may or may ...

emash commented on How do you write and post in the public lab community? Asking for our developers! about 1 month ago

Thank you so much for this feedback!

cfastie commented on Real time and temperature about 1 month ago

It is likely that the library that you do not want to use will provide the functionality that you...

warren commented on mapknitter export stuck about 1 month ago

Just following up with a link to the GitHub issue for ordering! https://github.com/publiclab/mapk...

warren commented on mapknitter export stuck about 1 month ago

Just following up - i see that: it seems that re-ordering manually does not result in a differe...

warren commented on mapknitter export stuck about 1 month ago

Ah, just responding here too - i believe we actually want a LOWER number than 70 cm/px -- in my r...

warren commented on mapknitter export stuck about 1 month ago

Hi, just responding to the stalled exports issue; @icarito is right that we are still trying to a...

warren commented on Is anyone working on the reception of satellite imagery using ham radio methods? about 1 month ago

Hi, just chiming in here - the project Gabi led at the Barnraising was based on this great projec...

mimiss commented on Getting rid of Cats-Claw Vines about 1 month ago

@mimiss has marked @amallozzi as a co-author.

kgradow1 commented on What are ways to monitor for oil and gas spills on private property? about 1 month ago

My understanding -- based on very limited reading! -- is that remote sensing solutions are mostly...

liz commented on mapknitter export stuck about 1 month ago

Thank you so much for your detailed reporting and perseverance! Tuesdays are currently our day to...

jaspal23 commented on Real time and temperature about 1 month ago

Hi i followed your code and didn't get any result. it displays only 0.00 values, no data showing....