At its best, this book is a wonderful cookbook of image processing techniques. For example the author's presentation of the Canny and Shen-Castan methods of edge detection is clear and detailed. Full C source is provided for this and all the other techniques discussed in the book. The book does not pretend to be a basic introduction to image processing -- if you do not have Castleman or Pratt or something similar on your bookshelf, you probably should not start by acquiring this book. A possible source of irritation for some readers will be the variation in depth of coverage of topics. For example, when the author discusses wavelets, the coverage is very scant and qualitative. It is well done, but quite different in kind from the aforementioned coverage of advanced edge detection techniques. Similarly, the author will cover specific aspects of image processing, such as motion blur for an image, in the context of a rather general discussion of image restoration. In short, the book seems to reflect the author's interests more than attempting to be an objective coverage of the current state of the art in image processing. Nonetheless, the high quality of the information that the author provides and the bibliography to further coverage of the given topics are well worth the price of the book. You just need to approach it on the author's terms rather than on a preconceived notion of what you should get out of the book.