This chapter introduces the main processes of High Dynamic Range (HDR) imaging, which can be best characterized as a pipeline, termed the HDR pipeline. It outlines different ways in which HDR images can be generated. These include images generated from a series of still Low Dynamic Range (LDR) images, using computer graphics, and via expansion from single-exposure images. The chapter describes exciting new hardware that enables native HDR capture. It introduces the primary native HDR displays. The most commonly used method of capturing HDR images is to acquire multiple photographs of the same scene at different exposure times to capture all details from the darkest to the brightest areas. The chapter shows MATLAB code for combining multiple LDR images at different exposure times into a single HDR image. It introduces a tomographic method for tackling the visualization of light-fields using a multi-layer display.