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digital image processing projects 数字图像处理 冈萨雷斯 第六章所有程序和报告
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 image whos
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