[dheera]

Related project: I shot a lot of landscapes in Iceland using a thermal (long wave IR) camera to show geologic phenomena in action. This involved stitching together a lot of (narrow FOV) thermal images and overlaying it on top of visible camera images for context.

https://petapixel.com/2019/07/13/shooting-high-res-thermal-p...

[alter_igel]

Author here. Amazing work! The visible and thermal compositing is done really well and gives back so much detail and context that is lost in purely thermal images.

Does your IR camera give you access to raw temperature data? I've briefly played with a cheap thermal camera and it seemed to assign its own colours varyingly depending on the dynamic range of temperatures in view.

[dheera]

Yes, Seek RevealPro gives raw temperature data in radiometric tiff files. They are tiff files with temperatures in Celsius as float32 values in the second page of each .tiff. GUI image editors can have trouble dealing with these multi-page float tiffs but Python's PIL package can read it just fine.

Here's a basic script that converts them to greyscale uint8 with a fixed linear mapping, making them compatible with GUI panoramic stitching software.

https://github.com/dheera/iceland-thermal/blob/master/script...

[vjvjvjvjghv]

Very cool!