Apologies for coming back to this question so soon but I was reading an article on compression of thermal images Understanding Proprietary Infrared Image Files that says
The JPEG image file, commonly used for photographs and other complex still-images on the Web, is an image that has lossy compression…Note: It should be noted that “lossy” file compression is NOT acceptable for thermographic images since there is no acceptable level of loss of image data because the image is the data.
Is knowing the temperature scales and greyscales enough to navigate this issue?
Also it mentions that Flirs .jpg extension is different to the traditional .jpg extension which would not be capable of storing radiometric data as well as explicitly needing to use Flirs software to extract this information:
The standard image file formats (.BMP, .TIF, .JPG, or .GIF) were designed for use within popular image viewing software such as Microsoft Paint, Adobe Photoshop, or Jasc Paint Shop Pro; these formats were not designed to facilitate sophisticated analysis of the radiometric data stored within IR image files.
(Note: Do not be confused. FLIR uses file extensions of .JPG, and .TIF which are also used as extensions for digital photo files; however, the FLIR file structure for the radiometric image is completely different. You cannot get radiometric data out of FLIR .JPG or .TIF files without using FLIR’s Proprietary software).
Any thoughts on this?