本文實例為大家分享了java實現圖片旋轉、指定圖像大小、水平翻轉，供大家參考，具體內容如下
|
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
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
package com.zeph.j2se.image; import java.awt.graphics2d;import java.awt.renderinghints;import java.awt.image.bufferedimage; public class imageoperate { /** * 旋轉圖片為指定角度 * * @param bufferedimage * 目標圖像 * @param degree * 旋轉角度 * @return */ public static bufferedimage rotateimage(final bufferedimage bufferedimage, final int degree) { int w = bufferedimage.getwidth(); int h = bufferedimage.getheight(); int type = bufferedimage.getcolormodel().gettransparency(); bufferedimage img; graphics2d graphics2d; (graphics2d = (img = new bufferedimage(w, h, type)).creategraphics()) .setrenderinghint(renderinghints.key_interpolation, renderinghints.value_interpolation_bilinear); graphics2d.rotate(math.toradians(degree), w / 2, h / 2); graphics2d.drawimage(bufferedimage, 0, 0, null); graphics2d.dispose(); return img; } /** * 變更圖像為指定大小 * * @param bufferedimage * 目標圖像 * @param w * 寬 * @param h * 高 * @return */ public static bufferedimage resizeimage(final bufferedimage bufferedimage, final int w, final int h) { int type = bufferedimage.getcolormodel().gettransparency(); bufferedimage img; graphics2d graphics2d; (graphics2d = (img = new bufferedimage(w, h, type)).creategraphics()) .setrenderinghint(renderinghints.key_interpolation, renderinghints.value_interpolation_bilinear); graphics2d.drawimage(bufferedimage, 0, 0, w, h, 0, 0, bufferedimage.getwidth(), bufferedimage.getheight(), null); graphics2d.dispose(); return img; } /** * 水平翻轉圖像 * * @param bufferedimage * 目標圖像 * @return */ public static bufferedimage flipimage(final bufferedimage bufferedimage) { int w = bufferedimage.getwidth(); int h = bufferedimage.getheight(); bufferedimage img; graphics2d graphics2d; (graphics2d = (img = new bufferedimage(w, h, bufferedimage .getcolormodel().gettransparency())).creategraphics()) .drawimage(bufferedimage, 0, 0, w, h, w, 0, 0, h, null); graphics2d.dispose(); return img; }} |
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
原文鏈接：https://blog.csdn.net/benweizhu/article/details/7307720
