FilesExpand file tree

 master

/

Dilation.java

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

49 lines (42 loc) · 1.37 KB

 master

/

Dilation.java

Copy path

Top

File metadata and controls

• Code
• Blame

49 lines (42 loc) · 1.37 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

/*

* To change this template, choose Tools | Templates

* and open the template in the editor.

*/

package image2d;

import java.awt.image.BufferedImage;

/**

*

* @author pratchaya

*/

public class Dilation {

private static int maxPixel(BufferedImage _image, int _w, int _h, int r) {

int maxR = 0;

int maxG = 0;

int maxB = 0;

int radiusPow = r * r;

int _r = r/2;

for (int i = -_r; i < _r; i++) {

for (int j = -_r; j < _r; j++) {

if (i * i + j * j < radiusPow) {

int c = RGB.getRGBW(_image, _w + i, _h + j);

maxR = Math.max(maxR, (c >> 16) & 0xFF);

maxG = Math.max(maxG, (c >> 8) & 0xFF);

maxB = Math.max(maxB, c & 0xFF);

} // end if

} // end j

} // end i

return (maxR << 16) | (maxG << 8) | maxB;

}

public static BufferedImage apply(BufferedImage _image, int _radius) {

int width = _image.getWidth();

int height = _image.getHeight();

int radius = _radius;

BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR);

for (int i = 0; i < width; i++) {

for (int j = 0; j < height; j++) {

image.setRGB(i, j, maxPixel(_image, i, j, radius));

}

}

return image;

}

}