数字图像处理 (2)

Digital Image Processing, 2nd ed(数字图像处理(第2版))数据摘要：DIGITAL IMAGE PROCESSING has been the world-wide leading textbook in its field for more than 30 years. As the 1977 and 1987 editions by Gonzalez and Wintz, and the 1992 edition by Gonzalez and Woods, the present edition was prepared with students and instructors in mind. The material is timely, highly readable, and illustrated with numerous examples of practical significance. All mainstream areas of image processing are covered, including a totally revised introduction and discussion of image fundamentals, image enhancement in the spatial and frequency domains, restoration, color image processing, wavelets, image compression, morphology, segmentation, and image description. Coverage concludes with a discussion on the fundamentals of object recognition.Although the book is completely self-contained, this companion web site provides additional support in the form of review material, answers to selected problems, laboratory project suggestions, and a score of other features. A supplementary instructor's manual is available to instructors who have adopted the book for classroom use.中文关键词：数字图像处理,图像基础,图像在空间和频率域的增强,图像压缩,图像描述,英文关键词：digital image processing,image fundamentals,image compression,image description,数据格式：IMAGE数据用途：DIGITAL IMAGE PROCESSING数据详细介绍：Digital Image Processing, 2nd editionAbout the BookBasic InformationISBN number 020*******.Publisher: Prentice Hall12 chapters.793 pages.© 2002.DIGITAL IMAGE PROCESSING has been the world-wide leading textbook in its field for more than 30 years. As the 1977 and 1987 editions by Gonzalez and Wintz, and the 1992 edition by Gonzalez and Woods, the present edition was prepared with students and instructors in mind. The material is timely, highly readable, and illustrated with numerous examples of practical significance. All mainstream areas of image processing are covered, including a totally revised introduction and discussion of image fundamentals, image enhancement in the spatial and frequency domains, restoration, color image processing, wavelets, image compression, morphology, segmentation, and image description. Coverage concludes with a discussion on the fundamentals of object recognition.Although the book is completely self-contained, this companion web site provides additional support in the form of review material, answers to selected problems, laboratory project suggestions, and a score of other features. A supplementary instructor's manual is available to instructors who have adopted the book for classroom use.Partial list of institutions that use the book.NEW FEATURESNew chapters on wavelets, image morphology, and color image processing.A revision and update of all chapters, including topics such as segmentation by watersheds.More than 500 new images and over 200 new line drawings and tables.A reorganization that allows the reader to get to the material on actual image processing much sooner than before.A more intuitive development of traditional topics such as image transforms and image restoration.Numerous new examples with processed images of higher resolution. Updated image compression standards and a new section on compression using wavelets.Updated bibliography.Differences Between the DIP and DIPUM BooksDigital Image Processing is a book on fundamentals.Digital Image Processing Using MATLAB is a book on the software implementation of those fundamentals.The key difference between the books is that Digital Image Processing (DIP) deals primarily with the theoretical foundation of digital image processing, while Digital Image Processing Using MATLAB (DIPUM) is a book whose main focus is the use of MATLAB for image processing. The DIPUM book covers essentially the same topics as DIP, but the theoretical treatment is not asdetailed. Some instructors prefer to fill in the theoretical details in class in favor of having available a book with a strong emphasis on implementation.© 2002 by Prentice-Hall, Inc.Upper Saddle River, New Jersey 07458All rights reserved. No part of this book may be reproduced, in any form or by any means, without permission in writing from the publisher.The author and publisher of this book have used their best efforts in preparing this book.These efforts include the development, research, and testing of the theories and programs to determine their effectiveness.The author and publisher make no warranty of any kind, expressed or implied, with regard to these programs or the documentation contained in this book.The author and publisher shall not be liable in any event for incidental or consequential damages in connection with, or arising out of, the furnishing, performance, or use of these programs.数据预览：点此下载完整数据集。

c语⾔数字图像处理（⼆）：图⽚放⼤与缩⼩-双线性内插法图像内插假设⼀幅⼤⼩为500 * 500的图像扩⼤1.5倍到750 * 750，创建⼀个750 * 750 的⽹格，使其与原图像间隔相同，然后缩⼩⾄原图⼤⼩，在原图中寻找最接近的像素（或周围的像素）进⾏赋值，最后再将结果放⼤最邻近内插法寻找最近的像素赋值双线性内插法v(x,y) = ax + by + cxy + d双线性内插法参数计算已知Q11, Q12, Q21, Q22，要插值的点为P点，⾸先在x轴上，对R1，R2两个点进⾏插值然后根据R1和R2对P点进⾏插值化简得对于边界值的处理，若x1 < 0 ,则直接令f(Q11), f(Q12) = 0处理结果原图扩⼤为6000 * 4000缩⼩为1000 * 500下⾯为代码实现的主要部分int is_in_array(short x, short y, short height, short width){if (x >= 0 && x < width && y >= 0 && y < height)return1;elsereturn0;}void bilinera_interpolation(short** in_array, short height, short width, short** out_array, short out_height, short out_width){double h_times = (double)out_height / (double)height,w_times = (double)out_width / (double)width;short x1, y1, x2, y2, f11, f12, f21, f22;double x, y;for (int i = 0; i < out_height; i++){for (int j = 0; j < out_width; j++){x = j / w_times;y = i / h_times;x1 = (short)(x - 1);x2 = (short)(x + 1);y1 = (short)(y + 1);y2 = (short)(y - 1);f11 = is_in_array(x1, y1, height, width) ? in_array[y1][x1] : 0; f12 = is_in_array(x1, y2, height, width) ? in_array[y2][x1] : 0; f21 = is_in_array(x2, y1, height, width) ? in_array[y1][x2] : 0; f22 = is_in_array(x2, y2, height, width) ? in_array[y2][x2] : 0; out_array[i][j] = (short)(((f11 * (x2 - x) * (y2 - y)) +(f21 * (x - x1) * (y2 - y)) +(f12 * (x2 - x) * (y - y1)) +(f22 * (x - x1) * (y - y1))) / ((x2 - x1) * (y2 - y1))); }}}。

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