[...]... clicking the rightward pointing arrow in the top menu bar Help for the demo can be activated by clicking the “?” button and moving the cursor over the icon that is located immediately to the right of the “?” button In addition, when the cursor is placed over any other button/control, the help window automatically updates to describe the function of that button/control We are confident that the user... pattern) Aliasing, and its mathematical interpretation, will be discussed further in Chapter 2 in the context of the Sampling Theorem 1.6 QUANTIZED IMAGES The other part of image digitization is quantization The values that a (single-valued) image takes are usually intensities since they are a record of the intensity of the signal incident on the sensor, e.g., the photon count or the amplitude of a measured... we expect that the Essential Guide to Image Processing and its companion, the Essential Guide to Video Processing, will serve as excellent textbooks as well as references It has been our objective to keep the students, needs in mind, and we feel that the material contained herein is appropriate to be used for classroom presentations ranging from the introductory undergraduate level, to the upper-division... to the reader’s own potential applications The Guide succeeds in achieving these goals, primarily because of the many years of broad educational and practical experience that the many contributing authors bring to bear in explaining the topics contained herein 1.10 Organization of the Guide 1.10 ORGANIZATION OF THE GUIDE It is our intention that this Guide be adopted by both researchers and educators... visual quality The Guide next turns to basic methods for the fascinating topic of image analysis Not all images are intended for direct human visual consumption Instead, in many situations it is of interest to automate the process of repetitively interpreting the content of multiple images through the use of an image analysis algorithm For example, it may be desired to classify parts of images as being... have used image editing software such as Adobe Photoshop, GIMP, Picasa, ImageMagick, or iPhoto to perform simple image processing tasks, such as resizing a large image for emailing, or adjusting the brightness and contrast of a photograph The fact that to Photoshop” is being used as a verb in everyday parlance speaks of the popularity of image processing among the masses As one peruses the wide spectrum... being rather theoretical Although many of these mathematical topics may be unfamiliar (and often superfluous) to a majority of the general image processing audience, we believe it is possible to present the theoretical aspects of image processing as an intuitive and exciting “visual” experience Surely, the cliché “A picture is worth a thousand words” applies very effectively to the teaching of image processing... Stand-alone implementations of the SIVA image processing demos, which do not require the user to own a copy of LabVIEW, are provided on the CD that accompanies this Guide SIVA is also available for free download from the Web site mentioned in [2] The reader is encouraged to experiment with these demos as they read the chapters in this Guide Since the Guide contains a very large number of topics, only a subset... Introduction to Digital Image Processing become possible to acquire images of objects as small as 10Ϫ10 m Hence we are able to image from the grandest scale to the minutest scales, over a range of 40 orders of magnitude, and as we will find, the techniques of image and video processing are generally applicable to images taken at any of these scales Scale has another important interpretation, in the sense... displays Inputs can be fed into the system using the mouse or the keyboard A typical front panel is shown in Fig 2.1(a) ■ Block diagram—contains the graphical source code that defines the functionality of the VI The blocks are interconnected, using wires to indicate the dataflow Front panel indicators pass data from the user to their corresponding terminals on 25 26 CHAPTER 2 The SIVA Image Processing Demos . has to view the latest space telescope images or read about the newest medical image modality to be aware of this. With this introduction,welcome to The Essential Guide to Image Processing! The. rendition, in addition to updating the content, I made the decision to div ide the material into two distinct books, separating the material into coverage of still images and moving images (video) feedback to the chapter authors in seeking to perfect the book. Owing primarily to their efforts, I feel certain that this Guide will prove to be an essential and indispensable resource for years to