Community research

warren commented on Brainstorming for Summer of Code 2019 21 days ago

Hi all! Thanks, Sidharth! I've posted the formal call for proposals here as well: https://public...

Bronwen commented on How do I search for the spectra recorded by a specific user? 21 days ago

Hi again @nn16 - you can also search by going to the url below and adding the username you're lo...

bansal_sidharth2996 commented on Brainstorming for Summer of Code 2019 21 days ago

All the applicants can start writing their proposals. Please see https://github.com/publiclab/pl...

liz commented on How do I search for the spectra recorded by a specific user? 22 days ago

Hi @nnn16 , what is the username you are searching for? I agree with @bronwen, we can try to hel...

sk9366693 commented on Brainstorming for Summer of Code 2019 22 days ago

I like Computer Full Form in Hindi thanku so much..

IgorWilbert commented on Call for Summer of Code 2019 mentors! 22 days ago

@warren thanks! I opened an issue in plots2 for this (https://github.com/publiclab/plots2/issues...

warren commented on Call for Summer of Code 2019 mentors! 22 days ago

Hi Igor - that seems very reasonable! Thank you! Hmm, what was the issue in adding your name - ...

warren commented on Brainstorming for Summer of Code 2019 22 days ago

Hi @namangupta - thanks, good questions! I don't think it'll be done by then, but who knows? Let...

jjcreedon commented on Soil Contaminant Testing 24 days ago

XRF analyzers are expensive to purchase; however , most companies that sell them will also rent ...

EdMallon commented on An Arduino Based UnderWater Sensor Platform 25 days ago

You can use a Pro Mini (or any other Arduino with an Atmel processor) to measure temperature usi...

anothal3v3l23 commented on LEAFFEST Fungal Fun 25 days ago

Is the destroying angel bluest because of toxicity?

siyuan commented on A Questions page to encourage discussions through better UX 26 days ago

Wow, I've missed the discussion here, but I'm so happy that it's helping evolve the site! Let me ...

falbriard commented on Is a spectrophotometer able to detect contaminants and traces of heavy metals, like: Lead, Mercury, Cadmium, Chromium, Arsenic, Copper and Nickel? Which is the best method for continous tracking of contaminants in river water? 28 days ago

@Ag8n , thanks so much for support and answers. Meanwhile I also found a summary of reagents an...

nedhorning commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 28 days ago

I can think of two possible reason. The most obvious would be that the illumination changed and ...

Ag8n commented on Is a spectrophotometer able to detect contaminants and traces of heavy metals, like: Lead, Mercury, Cadmium, Chromium, Arsenic, Copper and Nickel? Which is the best method for continous tracking of contaminants in river water? 28 days ago

You might want to look into ANDalyze. They use a new technology based on DNA for heavy metal an...

Corymbia commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 28 days ago

Thank you both, I really appreciate your help. My tiles were far from perfect, but from next wee...

cfastie commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 28 days ago

Subtracting the blue channel from the red channel is a good first step for correcting for contami...

nedhorning commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 28 days ago

It's good you discovered that. Yesterday I started to write about the need to subtract the blue b...

isak_hannisdal commented on turbidity_sensing 28 days ago

Where can I find the arduino code: riffle_turbidity.ino?

Corymbia commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 28 days ago

Hi, I have some trouble previewing my processed DNG images in Matlab, but the channel values are ...

nedhorning commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 28 days ago

I used this following dcraw command: dcraw -D -W -4 Image1.ORF to create this image which has be...

nedhorning commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 28 days ago

I have to run out now but will try to make time to check this in the morning. It's also possible...

Corymbia commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 28 days ago

Sure, I've just uploaded ORF files for all three images to the google drive (link at the end of m...

nedhorning commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 28 days ago

Can you post one of your RAW images? I looked at Image1.dng and that shows the Bayer pattern so i...

Corymbia commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 28 days ago

How do you make sure the white balancing step is omitted? I tried that myself (see table 3 and fi...

nedhorning commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 28 days ago

I use RAW pixel values for calibration analysis and since white balance doesn't impact RAW values...

Corymbia commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 28 days ago

Thanks, I will try! One more problem I noticed yesterday was that (at least when I set the white...

EdMallon commented on An Arduino Based UnderWater Sensor Platform 29 days ago

A high-school teacher friend asked us for faster build that is less dependent on soldering becaus...

nedhorning commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 29 days ago

The calibration coefficients are, in the simplest case, the slope and y-intercept of the linear r...

Corymbia commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 29 days ago

Thanks for the advice. How are the calibration coefficients calculated? I need to take photos of ...