pfstools 2.0.6-4 (armhf binary) in ubuntu bionic

 pfstools is a set of command line (and two GUI) programs for reading,
 writing, manipulating and viewing high-dynamic range (HDR) images and video
 frames. All programs in this package exchange data using a simple generic
 file format (pfs) for HDR data. It is an attempt to integrate existing file
 formats by providing a simple data format that can be used to exchange data
 between applications.
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 The concept of pfstools is similar to netpbm for low-dynamic range images.