Using IR with Photoshop or Aperture

Steven Cole

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Apr 18, 2016, 4:42:58 PM4/18/16

to plots-infrared

I am trying to isolate the red (ie IR) channel with photo editing software on a Mac, but it is clear that I am in over my head. Is there a guide or some general tips on how to use photo editing software in order to capture the IR without using the online Public Labs software?

Chris Fastie

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Apr 18, 2016, 4:57:36 PM4/18/16

to plots-infrared

Steven,

In Photoshop you should look for the Channel Mixer (Image/Adjustments/Channel Mixer). Adjust the blue and green channels to zero and only the red channel will be displayed. Or try Window/Channels to display individual channels. Fiji is really good at that and will automatically make three grayscale images, one for each channel. Irfanview also does this.

Chris

Jeffrey Warren

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Apr 18, 2016, 5:08:47 PM4/18/16

to Chris Fastie, plots-infrared

This may help!

https://publiclab.org/notes/warren/10-25-2011/video-tutorial-creating-infrared-composites-aerial-wetlands-imagery

Also some for the open source GIMP program:

https://publiclab.org/notes/warren/10-27-2011/video-tutorial-creating-false-color-ndvi-aerial-wetlands-imagery

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