Editing Infrared (section)

=== Other imaging ===
[[File:Infrared portrait comparison.jpg|thumb|Reflected light photograph in various infrared spectra to illustrate the appearance as the wavelength of light changes]]

In [[infrared photography]], [[infrared filter]]s are used to capture the near-infrared spectrum. [[Digital camera]]s often use infrared [[Filter (optics)|blockers]]. Cheaper digital cameras and [[camera phones]] have less effective filters and can view intense near-infrared, appearing as a bright purple-white color. This is especially pronounced when taking pictures of subjects near IR-bright areas (such as near a lamp), where the resulting infrared interference can wash out the image. There is also a technique called '[[T-ray]]' imaging, which is imaging using [[far-infrared]] or [[terahertz radiation]]. Lack of bright sources can make terahertz photography more challenging than most other infrared imaging techniques. Recently T-ray imaging has been of considerable interest due to a number of new developments such as [[terahertz time-domain spectroscopy]].