digital image processing projects 数字图像处理 冈萨雷斯 第六章所有程序与报告.docVIP

Digital Image Processing Project chapter： Chapter 6 Project number： Proj06-01 ~ Proj06-04 Students name： Students number： Class：  Contents Web-Safe Colors 2 Pseudo-Color Image Processing 2 Color Image Enhancement by Histogram Processing 5 Color Image Segmentation 7 Web-Safe Colors Exp. 20，PROJECT 06-01 Objective To know what are Web-safe colors, how to generate the RGB components for a given jpeg color image, or convert an image to RGB manually? Requirements (a) Write a computer program that converts an arbitrary RGB color image to a web-safe RGB image (see Fig. 6.10 for a definition of web-safe colors). (b) Download the image in Fig. 6.8 and convert it to a web-safe RGB color image. Figure 6.8 is given in jpg format, so convert your result back to jpg (see comments at the beginning of this project).  Figure 1 Fig6.08.jpg Technical discussion 【1】B = fix(A) rounds the elements of A toward zero, resulting in an array of integers.For complex A, the imaginary and real parts are rounded independently. 【2】imwrite(A,filename,fmt) writes the image A to the file specified by filename in the format specified by fmt. Program listings I=imread(Fig6.08.jpg); subplot(131); imshow(I); title(original); I1=fix((I/51)*51); subplot(132); imshow(I1); title(web-safe colors(jpg)); imwrite(I1,web-safe colors.jpeg,jpeg); subplot(133); I=imread(web-safe colors.jpeg); imshow(I); title(web-safe colors(jpeg)); Discussion of results Figure 2 results of project 06-01  Pseudo-Color Image Processing Exp. 21，PROJECT 06-02 Objective To know when the highpass filtering Hhp(u,v) can be obtained by using the relation 1-Hlp(u,v). Requirements (a) Implement Fig. 6.23, with the characteristic that you can specify two ranges of gray-level values for the input image and your program will output an RGB i