Digital Image Interpolation in Matlab

2 Digital Image

An image is a two‐dimensional (2D) light intensity function , where is a coordinate system of interest. Without loss of generality, and to simplify our discussions, the rest of the book will concentrate on the case of 2D Cartesian coordinate. The value of at the coordinates is proportional to the brightness of the image at that point. While digital images can be generated/acquired by a number of methods, primarily, the image is converted to a digital image through cameras using a 2D image sensor array, which are typically constructed with charge‐coupled devices (CCD) and complementary metal oxide semiconductor (CMOS) technologies. Camera constructed with CCD or CMOS works in a similar fashion, where the light reflected from an object will impinge onto the face of the sensor array, such that the will be converted into an electrical signal. Figure ...