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Public Lab Nonprofit Team

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Locations

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India

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India

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India

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Infragram convertible cameras

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oil

30 days ago | 0 | | 0

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eval

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Electronic device security best practices

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share

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Spread the word this holiday season

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Microbrews

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Cranston

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OHL

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Comment templates

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Monoxyde commented on Question: over 3 years ago

Hello to all this is a shot made ​​in full shade , in a day of strong sun and with a lot of contr...

cfastie commented on New wavelength calibration procedure preview for Spectral Workbench 2.0 over 3 years ago

Now there is a new set of references. A newly corrected image (background) of the diffraction p...

cfastie commented on UV photography & quartz lenses over 3 years ago

@icarito I did not receive a notification.

icarito commented on UV photography & quartz lenses over 3 years ago

@cfastie this is @icarito (Sebastian) sysadmin at publiclab. Please confirm you got this message?...

icarito commented on UV photography & quartz lenses over 3 years ago

Hi @warren is there an application for these? @icarito ps. no need to reply, testing notific...

cfastie commented on New wavelength calibration procedure preview for Spectral Workbench 2.0 over 3 years ago

Correcting the diffraction pattern was done this way: marquee select lines and translate them le...

warren commented on New wavelength calibration procedure preview for Spectral Workbench 2.0 over 3 years ago

I see that the 14 peaks you've chosen are sourced from the NIST data, not the Wikipedia/Ocean Opt...

warren commented on New wavelength calibration procedure preview for Spectral Workbench 2.0 over 3 years ago

Also, I'm not clear what Hg II means -- an ion? Would we only be seeing Hg I, or would we see bot...

warren commented on New wavelength calibration procedure preview for Spectral Workbench 2.0 over 3 years ago

OK, I've filtered out the highest NIST peaks, and exported them in plain text. But these are in a...

warren commented on New wavelength calibration procedure preview for Spectral Workbench 2.0 over 3 years ago

Oh, and is the 14CFLpeaks.txt from the Wikipedia reference? If so, it says: Spectrum with peaks ...

warren commented on New wavelength calibration procedure preview for Spectral Workbench 2.0 over 3 years ago

OK, so we have two different needs: First, a list of known spectral peaks: from some known tru...

cfastie commented on New wavelength calibration procedure preview for Spectral Workbench 2.0 over 3 years ago

I did a check on the files I attached to the last comment and they are not as precise as I though...

bnjmnph commented on Question: Possible to get 3D map from balloon mapping? over 3 years ago

thanks for the clarification, as thats the reason of my original question wondering if it was pos...

cfastie commented on New wavelength calibration procedure preview for Spectral Workbench 2.0 over 3 years ago

Here is a text file with the 14 peaks I used to calibrate the CFL spectrum (in nm): 14CFLpeaks.t...

nedhorning commented on Introducing the calibration plugin for ImageJ/Fiji over 3 years ago

Mathew - Have you been able to find a reflectance plot for those paints? I looked but didn't see ...

warren commented on Polynomial over 3 years ago

Oh, sorry, to be clear, i just need the wavelength values.

warren commented on Polynomial over 3 years ago

Hi Chris, for the upcoming "root mean square error" calibration "fitness" test, I want to sample ...

mathew commented on Introducing the calibration plugin for ImageJ/Fiji over 3 years ago

Rosco manufactures outdoor-grade TV paints including 60% grey (TV white) and black (3%) and chrom...

Monoxyde commented on Question: over 3 years ago

Jorge Hello Jorge , First of all, Thank you and sorry for the delay in responding ! Unfortunatel...

tgran commented on Question: Possible to get 3D map from balloon mapping? over 3 years ago

The camera does not need GPS capabilities itself, but if you want to connect a digital elevation ...

cfastie commented on Question: over 3 years ago

JorgeV, The process is very sensitive to both the color balance and exposure of each photo. If t...

cfastie commented on Ideas on opening "open hardware" over 3 years ago

I’m not sure how the structurelessness issue relates to the idea of open hardware development. St...

jeffalk commented on Deploying UNC passive sampler on South Side of Chicago over 3 years ago

You probably know about the EPA site with monitoring data around the Chicago coke facilities. The...

patcoyle commented on Ideas on opening "open hardware" over 3 years ago

I like it. Providing a process to iterate and improve open source hardware in an orderly and tran...

bnjmnph commented on Question: Possible to get 3D map from balloon mapping? over 3 years ago

Thank you @pablo for the info. May I know how/what technology that is able to create those 3d ma...

Craig commented on Oil Testing Kit Schedule and Kickoff over 3 years ago

Finally had some time to put the kit together...

JorgeV commented on Question: over 3 years ago

Hello @monoxyde, First of all, let me tell you, those pictures are great. You can actually see t...

warren commented on Rainbow Party at Assemble PGH over 3 years ago

Wow, this is so great! Sorry, I'm not familiar with Assemble PGH -- do you have a link so I can l...

eustatic commented on Nature Center polygons for the next phase of Forest Restoration over 3 years ago

Compiling the old mapknitters for planning in this research note. https://mapknitter.org/maps/na...

NRG image of Lima from balloon

by warren almost 8 years ago | 1 | | 0

Focus shift in bifocal filter?

by warren almost 8 years ago | 1 | | -1

Kinect for 3d mapping from a car

by warren almost 8 years ago | 2 | | 1

Images arriving from loose flight over Lima

by warren almost 8 years ago | 0 | | -1

Nice spectra

by warren almost 8 years ago | 0 | | 2

DIY Windmill and Solar Light Workshop

by warren almost 8 years ago | 0 | | 2

Taller DIY de turbinas y luces solares

by warren almost 8 years ago | 1 | | 2

Great shot for NDVI

by warren about 8 years ago | 0 | | -1

Example NDVI usage in a vineyard

by warren about 8 years ago | 1 | | -1

Taller de espectrometría "DIY" en Lima, Peru

by warren about 8 years ago | 0 | | 2

Bifocal infrared/visible filter on a camera

by warren about 8 years ago | 0 | | -1

Bifocal infrared/visible filter at Lima workshop

by warren about 8 years ago | 6 | | -1

DIY Spectrometry Workshop in Lima, Peru

RSVP

Event by warren about 8 years ago | 0 | | 0

NDVI test in Lima Peru

by warren about 8 years ago | 4 | | -1

Very clear spectrum through pineapple

by warren about 8 years ago | 8 | | -1

The Roomba Project

by byeongwon about 8 years ago | 0 | | 0

Plant spectral timelapse (~7hrs)

by warren about 8 years ago | 3 | | 0

UV photography & quartz lenses

by warren about 8 years ago | 6 | | 0

Using the HITRAN database for spectral analysis

by warren about 8 years ago | 6 | | 1

Methane absorption band at around 1100nm

by warren about 8 years ago | 1 | | -1

Scanning spectrometry video test

by warren about 8 years ago | 0 | | -1

Bayou St. Denis in Cartagen Knitter

by warren about 8 years ago | 0 | | -1

Toy spectrometers arrived

by warren about 8 years ago | 0 | | -1







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India

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India

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India

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oil

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eval

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share

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Spread the word this holiday season

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Microbrews

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Cranston

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OHL

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