1
#include <highgui.h>
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#include <cv.h>
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#include <stdio.h>
4
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#pragma
comment (lib,"opencv_calib3d231d.lib")
6
#pragma
comment (lib,"opencv_contrib231d.lib")
7
#pragma
comment (lib,"opencv_core231d.lib")
8
#pragma
comment (lib,"opencv_features2d231d.lib")
9
#pragma
comment (lib,"opencv_flann231d.lib")
10
#pragma
comment (lib,"opencv_gpu231d.lib")
11
#pragma
comment (lib,"opencv_haartraining_engined.lib")
12
#pragma
comment (lib,"opencv_highgui231d.lib")
13
#pragma
comment (lib,"opencv_imgproc231d.lib")
14
#pragma
comment (lib,"opencv_legacy231d.lib")
15
#pragma
comment (lib,"opencv_ml231d.lib")
16
#pragma
comment (lib,"opencv_objdetect231d.lib")
17
#pragma
comment (lib,"opencv_ts231d.lib")
18
#pragma
comment (lib,"opencv_video231d.lib")
19
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/*
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*《学习OpenCV》第三章第五题
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* 完成时间：2:49 3/2 星期六 2013
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*/
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//
图像高宽
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#define
IMG_SIZE 420
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//
边界宽度
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#define
BORDER_WIDTH 10
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int
main()
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{
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//
创建8位单通道图像
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IplImage * image = cvCreateImage(cvSize(IMG_SIZE, IMG_SIZE),
8
,
1
);
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//
初始化置零
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cvZero(image);
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//
灰度值
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int
value =
0
;
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//
ROI区域大小
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int
rect_size =
IMG_SIZE;
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for
(
int
length = IMG_SIZE; length >=
0
&& value <=
200
; length -= BORDER_WIDTH, value +=
10
)
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{
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cvSetImageROI(image, cvRect(IMG_SIZE - length, IMG_SIZE-
length, rect_size, rect_size));
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rect_size -=
2
*
BORDER_WIDTH;
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cvSet(image, cvScalarAll(value));
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cvResetImageROI(image);
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}
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cvNamedWindow(
"
img
"
,
1
);
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cvShowImage(
"
img
"
, image);
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cvWaitKey(
0
);
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cvReleaseImage(&
image);
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cvDestroyAllWindows();
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return
0
;
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}
运行结果：
