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New edit by liz

Barnraising Texas 2019

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about 8 hours ago | 0 | | 2

New edit by liz

Barnraising Texas 2019

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about 8 hours ago | 0 | | 2

nedhorning commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel about 8 hours ago

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

New edit by joyofsoy

Barnraising Texas 2019

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about 9 hours ago | 0 | | 2

New edit by joyofsoy

Barnraising Texas 2019

Changes »

about 9 hours ago | 0 | | 2

New edit by joyofsoy

Barnraising Texas 2019

Changes »

about 9 hours ago | 0 | | 2

Texas Barnraising Photos

by joyofsoy about 9 hours ago | 4 | | 1

Corymbia new contributor commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel about 10 hours 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 about 11 hours 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 about 13 hours 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 about 15 hours ago

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

Corymbia new contributor commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel about 21 hours 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 about 24 hours 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 1 day ago

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

Corymbia new contributor commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 1 day 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 1 day ago

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

Corymbia new contributor commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 1 day 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 1 day ago

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

Corymbia new contributor commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 1 day 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 1 day 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 1 day ago

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

Corymbia new contributor commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 2 days ago

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

nedhorning commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 2 days ago

If you're using them for calibration you should be fine taking photos of the targets every so of...

warren commented on How do I build the Deluxe Microscope Kit 2 days ago

And apologies for the slow reply; we have been gearing up for the Barnraising this week! https://...

warren commented on How do I build the Deluxe Microscope Kit 2 days ago

Hello! We've put all the instructions up at http://publiclab.org/micro, for the various versions ...

New edit by zengirl2

Coqui conductivity sensor

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2 days ago | 0 | | 18

New edit by zengirl2

Coqui conductivity sensor

Changes »

2 days ago | 0 | | 18

belkinsa commented on Dissolved Oxygen Testing and Citizen Science 2 days ago

Thank you @MadTinker, I updated the page with that info, hopefully it's right.

MadTinker commented on Dissolved Oxygen Testing and Citizen Science 2 days ago

@belkinsa I’d strongly suggest the Winkler test for monitoring DO. It’s easy, can be done reliab...

belkinsa commented on Dissolved Oxygen Testing and Citizen Science 2 days ago

Sorry for the delay. I was thinking that the data could be used for monitoring rather than educat...

Corymbia new contributor commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 2 days ago

I realised that my tiles may be too shiny and grabbed some matt paint samples (pieces of matt pap...

warren commented on MapKnitter map of Giant Salvinia Bayou st John Winter 2019 2 days ago

Beautiful map, Scott!

nedhorning commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 3 days ago

I just read over Rob Sumner's RAW guide and see Adobe DNG Converter is free. It also looks like h...

nedhorning commented on Testing a Midopt DB660/850 filter: NIR contamination of the red channel 3 days ago

The tables look great. Before the end of the week I'll try to compare your converted image with o...

warren commented on The Tags page mockup - let me know what you think! 3 days ago

I'd also like to reconnect with the design discussions that are ongoing for other pages, in part...

New edit by Shannon

Conduct

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4 days ago | 0 | | 1

New edit by Shannon

Conduct

Changes »

5 days ago | 0 | | 1

New edit by Shannon

Conduct

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5 days ago | 0 | | 1

Soil Contaminant Testing

by DanielleS 11 days ago | 4 | | 5

New page by liz

txbr

11 days ago | 0 | | 0

MapKnitter map of Collado Villalba (2)

by imvec 11 days ago | 0 | | 0

New page by a1ahna

Emery Board Terrain Survey

16 days ago | 1 | | 0

MapKnitter map of bee leg stitch test

by MaggPi 18 days ago | 5 | | 6

New page by warren

Sandbox 4

18 days ago | 0 | | 0

Inline map testing

by sagarpreet 24 days ago | 2 | | 0

New page by warren

paper

25 days ago | 0 | | 0

What happens if I inhale too much formaldehyde?

Answered

Post an answer

Question by liz about 1 month ago | 2 | | 0

Gsoc 2019 Participation ?

Answered

Post an answer

Question by manas_man95 about 1 month ago | 0 | | 0

RV SensorShip V

by cfastie about 1 month ago | 1 | | 4

New page by gauravano

India

about 1 month ago | 0 | | 2

New page by liz

oil

2 months ago | 0 | | 0

New page by warren

eval

2 months ago | 0 | | 0

New page by warren

Electronic device security best practices

3 months ago | 0 | | 1

New page by joyofsoy

share

3 months ago | 0 | | 0

New page by joyofsoy

Spread the word this holiday season

3 months ago | 0 | | 0







A shared knowledge base for community science

New edit by liz about 8 hours ago - changes

Barnraising Texas 2019

New edit by liz about 8 hours ago - changes

Barnraising Texas 2019

New edit by joyofsoy about 9 hours ago - changes

Barnraising Texas 2019

New edit by joyofsoy about 9 hours ago - changes

Barnraising Texas 2019

New edit by joyofsoy about 9 hours ago - changes

Barnraising Texas 2019

New edit by Shannon 4 days ago - changes

Conduct

New edit by Shannon 5 days ago - changes

Conduct

New edit by Shannon 5 days ago - changes

Conduct

New page by liz 11 days ago

txbr

New page by a1ahna 16 days ago

Emery Board Terrain Survey

New page by warren 18 days ago

Sandbox 4

New page by warren 25 days ago

paper

New page by gauravano about 1 month ago

India

New page by liz 2 months ago

oil

New page by warren 2 months ago

eval

New page by joyofsoy 3 months ago

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