ABSTRACT
This chapter covers the basic principles of forensic digital imaging theory. Bitmap images require sufficient resolution for the end purpose. Three choices affect resolution when taking a photograph: the maximum resolution of the camera, the resolution set in the camera and how the shot is framed. The maximum resolution of the camera: A 6-megapixel camera will have half the resolution of a 12-megapixel camera. File format means the method by which files are stored, whether on a camera's compact flash card or on a computer's hard drive. The chapter takes at Photoshop's Level Dialogue box, where you cannot only view, but also edit the histogram. In Photoshop's Levels dialogue box, the Input Levels area, which contains the histogram, is isolated. The chapter discusses the merits of photographing for raw capture, versus JPEG or TIFF. The literal meaning of "photography" is "drawing with light." The flash light is used in two distinct ways—hence the two categories, speed lights and monolights.
