提交 | 用户 | 时间
|
58d006
|
1 |
package com.mandi.common; |
A |
2 |
|
|
3 |
import java.awt.AlphaComposite; |
|
4 |
import java.awt.Color; |
|
5 |
import java.awt.Font; |
|
6 |
import java.awt.Graphics; |
|
7 |
import java.awt.Graphics2D; |
|
8 |
import java.awt.Image; |
|
9 |
import java.awt.RenderingHints; |
|
10 |
import java.awt.Toolkit; |
|
11 |
import java.awt.color.ColorSpace; |
|
12 |
import java.awt.image.BufferedImage; |
|
13 |
import java.awt.image.ColorConvertOp; |
|
14 |
import java.awt.image.CropImageFilter; |
|
15 |
import java.awt.image.FilteredImageSource; |
|
16 |
import java.awt.image.ImageFilter; |
|
17 |
import java.awt.image.ImagingOpException; |
|
18 |
import java.io.File; |
|
19 |
import java.io.FileOutputStream; |
|
20 |
import java.io.IOException; |
|
21 |
|
|
22 |
import javax.imageio.ImageIO; |
|
23 |
|
|
24 |
/** |
|
25 |
* @author mengly |
|
26 |
* @version 创建时间:2016年4月21日 下午6:01:01 |
|
27 |
* 类说明 |
|
28 |
*/ |
|
29 |
|
|
30 |
public class ImageUtils { |
|
31 |
/** |
|
32 |
* 相对于图片的位置 |
|
33 |
*/ |
|
34 |
private static final int POSITION_UPPERLEFT=0; |
|
35 |
private static final int POSITION_UPPERRIGHT=10; |
|
36 |
private static final int POSITION_LOWERLEFT=1; |
|
37 |
private static final int POSITION_LOWERRIGHT=11; |
|
38 |
/** |
|
39 |
* 几种常见的图片格式 |
|
40 |
*/ |
|
41 |
public static String IMAGE_TYPE_GIF = "gif";// 图形交换格式 |
|
42 |
public static String IMAGE_TYPE_JPG = "jpg";// 联合照片专家组 |
|
43 |
public static String IMAGE_TYPE_JPEG = "jpeg";// 联合照片专家组 |
|
44 |
public static String IMAGE_TYPE_BMP = "bmp";// 英文Bitmap(位图)的简写,它是Windows操作系统中的标准图像文件格式 |
|
45 |
public static String IMAGE_TYPE_PNG = "png";// 可移植网络图形 |
|
46 |
private static ImageUtils instance; |
|
47 |
private ImageUtils() { |
|
48 |
instance = this; |
|
49 |
} |
|
50 |
/** |
|
51 |
* 获取实例 |
|
52 |
* @return |
|
53 |
*/ |
|
54 |
public static ImageUtils getInstance() { |
|
55 |
if (instance == null) { |
|
56 |
instance = new ImageUtils(); |
|
57 |
} |
|
58 |
return instance; |
|
59 |
} |
|
60 |
public BufferedImage image2BufferedImage(Image image){ |
|
61 |
System.out.println(image.getWidth(null)); |
|
62 |
System.out.println(image.getHeight(null)); |
|
63 |
BufferedImage bufferedImage = new BufferedImage(image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_INT_ARGB); |
|
64 |
Graphics2D g = bufferedImage.createGraphics(); |
|
65 |
g.drawImage(image, null, null); |
|
66 |
g.dispose(); |
|
67 |
return bufferedImage; |
|
68 |
} |
|
69 |
/** |
|
70 |
* 缩放并转换格式后保存 |
|
71 |
* @param srcPath源路径 |
|
72 |
* @param destPath目标路径 |
|
73 |
* @param width:目标宽 |
|
74 |
* @param height:目标高 |
|
75 |
* @param format:文件格式 |
|
76 |
* @return |
|
77 |
*/ |
|
78 |
public static boolean scaleToFile(String srcPath, String destPath, int width, int height,String format) { |
|
79 |
boolean flag = false; |
|
80 |
try { |
|
81 |
File file = new File(srcPath); |
|
82 |
File destFile = new File(destPath); |
|
83 |
if (!destFile.getParentFile().exists()) { |
|
84 |
destFile.getParentFile().mkdir(); |
|
85 |
} |
|
86 |
BufferedImage src = ImageIO.read(file); // 读入文件 |
|
87 |
Image image = src.getScaledInstance(width, height, Image.SCALE_DEFAULT); |
|
88 |
BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); |
|
89 |
Graphics g = tag.getGraphics(); |
|
90 |
g.drawImage(image, 0, 0, null); // 绘制缩小后的图 |
|
91 |
g.dispose(); |
|
92 |
flag = ImageIO.write(tag, format, new FileOutputStream(destFile));// 输出到文件流 |
|
93 |
} catch (IOException e) { |
|
94 |
e.printStackTrace(); |
|
95 |
} |
|
96 |
return flag; |
|
97 |
} |
|
98 |
/** |
|
99 |
* 缩放Image,此方法返回源图像按百分比缩放后的图像 |
|
100 |
* @param inputImage |
|
101 |
* @param percentage 百分比 允许的输入0<percentage<10000 |
|
102 |
* @return |
|
103 |
*/ |
|
104 |
public static BufferedImage scaleByPercentage(BufferedImage inputImage,int percentage){ |
|
105 |
//允许百分比 |
|
106 |
if(0>percentage||percentage>10000){ |
|
107 |
throw new ImagingOpException("Error::不合法的参数:percentage->"+percentage+",percentage应该大于0~小于10000"); |
|
108 |
} |
|
109 |
//获取原始图像透明度类型 |
|
110 |
int type = inputImage.getColorModel().getTransparency(); |
|
111 |
//获取目标图像大小 |
|
112 |
int w=inputImage.getWidth()*percentage; |
|
113 |
int h=inputImage.getHeight()*percentage; |
|
114 |
//开启抗锯齿 |
|
115 |
RenderingHints renderingHints=new RenderingHints(RenderingHints.KEY_INTERPOLATION, |
|
116 |
RenderingHints.VALUE_ANTIALIAS_ON); |
|
117 |
//使用高质量压缩 |
|
118 |
renderingHints.put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_RENDER_QUALITY); |
|
119 |
BufferedImage img = new BufferedImage(w, h, type); |
|
120 |
Graphics2D graphics2d =img.createGraphics(); |
|
121 |
graphics2d.setRenderingHints(renderingHints); |
|
122 |
graphics2d.drawImage(inputImage, 0, 0, w, h, 0, 0, inputImage |
|
123 |
.getWidth(), inputImage.getHeight(), null); |
|
124 |
graphics2d.dispose(); |
|
125 |
return img; |
|
126 |
/*此代码将返回Image类型 |
|
127 |
return inputImage.getScaledInstance(inputImage.getWidth()*percentage, |
|
128 |
inputImage.getHeight()*percentage, Image.SCALE_SMOOTH); |
|
129 |
*/ |
|
130 |
} |
|
131 |
/** |
|
132 |
* 缩放Image,此方法返回源图像按给定最大宽度限制下按比例缩放后的图像 |
|
133 |
* @param inputImage |
|
134 |
* @param maxWidth:压缩后允许的最大宽度 |
|
135 |
* @param maxHeight:压缩后允许的最大高度 |
|
136 |
* @throws java.io.IOException |
|
137 |
* return |
|
138 |
*/ |
|
139 |
public static BufferedImage scaleByPixelRate(BufferedImage inputImage, int maxWidth, int maxHeight) throws Exception { |
|
140 |
//获取原始图像透明度类型 |
|
141 |
int type = inputImage.getColorModel().getTransparency(); |
|
142 |
int width = inputImage.getWidth(); |
|
143 |
int height = inputImage.getHeight(); |
|
144 |
int newWidth = maxWidth; |
|
145 |
int newHeight =maxHeight; |
|
146 |
//如果指定最大宽度超过比例 |
|
147 |
if(width*maxHeight<height*maxWidth){ |
|
148 |
newWidth=(int)(newHeight*width/height) ; |
|
149 |
} |
|
150 |
//如果指定最大高度超过比例 |
|
151 |
if(width*maxHeight>height*maxWidth){ |
|
152 |
newHeight=(int)(newWidth*height/width); |
|
153 |
} |
|
154 |
//开启抗锯齿 |
|
155 |
RenderingHints renderingHints=new RenderingHints(RenderingHints.KEY_INTERPOLATION, |
|
156 |
RenderingHints.VALUE_ANTIALIAS_ON); |
|
157 |
//使用高质量压缩 |
|
158 |
renderingHints.put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_RENDER_QUALITY); |
|
159 |
BufferedImage img = new BufferedImage(newWidth, newHeight, type); |
|
160 |
Graphics2D graphics2d =img.createGraphics(); |
|
161 |
graphics2d.setRenderingHints(renderingHints); |
|
162 |
graphics2d.drawImage(inputImage, 0, 0, newWidth, newHeight, 0, 0, width, height, null); |
|
163 |
graphics2d.dispose(); |
|
164 |
return img; |
|
165 |
} |
|
166 |
/** |
|
167 |
* 缩放Image,此方法返回源图像按给定宽度、高度限制下缩放后的图像 |
|
168 |
* @param inputImage |
|
169 |
* @param maxWidth:压缩后宽度 |
|
170 |
* @param maxHeight:压缩后高度 |
|
171 |
* @throws java.io.IOException |
|
172 |
* return |
|
173 |
*/ |
|
174 |
public static BufferedImage scaleByPixel(BufferedImage inputImage, int newWidth, int newHeight) throws Exception { |
|
175 |
//获取原始图像透明度类型 |
|
176 |
int type = inputImage.getColorModel().getTransparency(); |
|
177 |
int width = inputImage.getWidth(); |
|
178 |
int height = inputImage.getHeight(); |
|
179 |
//开启抗锯齿 |
|
180 |
RenderingHints renderingHints=new RenderingHints(RenderingHints.KEY_ANTIALIASING, |
|
181 |
RenderingHints.VALUE_ANTIALIAS_ON); |
|
182 |
//使用高质量压缩 |
|
183 |
renderingHints.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY); |
|
184 |
BufferedImage img = new BufferedImage(newWidth, newHeight, type); |
|
185 |
Graphics2D graphics2d =img.createGraphics(); |
|
186 |
graphics2d.setRenderingHints(renderingHints); |
|
187 |
graphics2d.drawImage(inputImage, 0, 0, newWidth, newHeight, 0, 0, width, height, null); |
|
188 |
graphics2d.dispose(); |
|
189 |
return img; |
|
190 |
} |
|
191 |
/** |
|
192 |
* 切割图像,返回指定范围的图像 |
|
193 |
* @param inputImage |
|
194 |
* @param x 起点横坐标 |
|
195 |
* @param y 起点纵坐标 |
|
196 |
* @param width 切割图片宽度:如果宽度超出图片,将改为图片自x剩余宽度 |
|
197 |
* @param height 切割图片高度:如果高度超出图片,将改为图片自y剩余高度 |
|
198 |
* @param fill 指定目标图像大小超出时是否补白,如果true,则表示补白;false表示不补白,此时将重置目标图像大小 |
|
199 |
* @return |
|
200 |
*/ |
|
201 |
public static BufferedImage cut(BufferedImage inputImage,int x,int y,int width,int height,boolean fill){ |
|
202 |
//获取原始图像透明度类型 |
|
203 |
int type = inputImage.getColorModel().getTransparency(); |
|
204 |
int w = inputImage.getWidth(); |
|
205 |
int h = inputImage.getHeight(); |
|
206 |
int endx=x+width; |
|
207 |
int endy=y+height; |
|
208 |
if(x>w) |
|
209 |
throw new ImagingOpException("起点横坐标超出源图像范围"); |
|
210 |
if(y>h) |
|
211 |
throw new ImagingOpException("起点纵坐标超出源图像范围"); |
|
212 |
BufferedImage img; |
|
213 |
//补白 |
|
214 |
if(fill){ |
|
215 |
img = new BufferedImage(width, height, type); |
|
216 |
//宽度超出限制 |
|
217 |
if((w-x)<width){ |
|
218 |
width=w-x; |
|
219 |
endx=w; |
|
220 |
} |
|
221 |
//高度超出限制 |
|
222 |
if((h-y)<height){ |
|
223 |
height=h-y; |
|
224 |
endy=h; |
|
225 |
} |
|
226 |
//不补 |
|
227 |
}else{ |
|
228 |
//宽度超出限制 |
|
229 |
if((w-x)<width){ |
|
230 |
width=w-x; |
|
231 |
endx=w; |
|
232 |
} |
|
233 |
//高度超出限制 |
|
234 |
if((h-y)<height){ |
|
235 |
height=h-y; |
|
236 |
endy=h; |
|
237 |
} |
|
238 |
img = new BufferedImage(width, height, type); |
|
239 |
} |
|
240 |
//开启抗锯齿 |
|
241 |
RenderingHints renderingHints=new RenderingHints(RenderingHints.KEY_INTERPOLATION, |
|
242 |
RenderingHints.VALUE_ANTIALIAS_ON); |
|
243 |
//使用高质量压缩 |
|
244 |
renderingHints.put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_RENDER_QUALITY); |
|
245 |
Graphics2D graphics2d =img.createGraphics(); |
|
246 |
graphics2d.setRenderingHints(renderingHints); |
|
247 |
graphics2d.drawImage(inputImage, 0, 0, width, height, x, y, endx, endy, null); |
|
248 |
graphics2d.dispose(); |
|
249 |
return img; |
|
250 |
} |
|
251 |
/** |
|
252 |
* 切割图像,返回指定起点位置指定大小图像 |
|
253 |
* @param inputImage |
|
254 |
* @param startPoint 起点位置:左上:0、右上:10、左下:1、右下:11 |
|
255 |
* @param width 切割图片宽度 |
|
256 |
* @param height 切割图片高度 |
|
257 |
* @param fill 指定目标图像大小超出时是否补白,如果true,则表示补白;false表示不补白,此时将重置目标图像大小 |
|
258 |
* @return |
|
259 |
*/ |
|
260 |
public static BufferedImage cut(BufferedImage inputImage,int startPoint,int width,int height,boolean fill){ |
|
261 |
//获取原始图像透明度类型 |
|
262 |
int type = inputImage.getColorModel().getTransparency(); |
|
263 |
int w = inputImage.getWidth(); |
|
264 |
int h = inputImage.getHeight(); |
|
265 |
BufferedImage img; |
|
266 |
//补白 |
|
267 |
if(fill){ |
|
268 |
img = new BufferedImage(width, height, type); |
|
269 |
if(width>w) |
|
270 |
width=w; |
|
271 |
if(height>h) |
|
272 |
height=h; |
|
273 |
//不补 |
|
274 |
}else{ |
|
275 |
if(width>w) |
|
276 |
width=w; |
|
277 |
if(height>h) |
|
278 |
height=h; |
|
279 |
img = new BufferedImage(width, height, type); |
|
280 |
} |
|
281 |
//开启抗锯齿 |
|
282 |
RenderingHints renderingHints=new RenderingHints(RenderingHints.KEY_INTERPOLATION, |
|
283 |
RenderingHints.VALUE_ANTIALIAS_ON); |
|
284 |
//使用高质量压缩 |
|
285 |
renderingHints.put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_RENDER_QUALITY); |
|
286 |
Graphics2D graphics2d =img.createGraphics(); |
|
287 |
graphics2d.setRenderingHints(renderingHints); |
|
288 |
switch(startPoint){ |
|
289 |
//右上 |
|
290 |
case POSITION_UPPERRIGHT: |
|
291 |
graphics2d.drawImage(inputImage, w-width, 0, w, height, 0, 0, width, height, null); |
|
292 |
break; |
|
293 |
//左下 |
|
294 |
case POSITION_LOWERLEFT: |
|
295 |
graphics2d.drawImage(inputImage, 0, h-height, width, h, 0, 0, width, height, null); |
|
296 |
break; |
|
297 |
//右下 |
|
298 |
case POSITION_LOWERRIGHT: |
|
299 |
graphics2d.drawImage(inputImage, w-width, h-height, w, h, 0, 0, width, height, null); |
|
300 |
break; |
|
301 |
//默认左上 |
|
302 |
case POSITION_UPPERLEFT: |
|
303 |
default: |
|
304 |
graphics2d.drawImage(inputImage, 0, 0, width, height, 0, 0, width, height, null); |
|
305 |
} |
|
306 |
graphics2d.dispose(); |
|
307 |
return img; |
|
308 |
} |
|
309 |
/** |
|
310 |
* 以指定角度旋转图片:使用正角度 theta 进行旋转,可将正 x 轴上的点转向正 y 轴。 |
|
311 |
* @param inputImage |
|
312 |
* @param degree 角度:以度数为单位 |
|
313 |
* @return |
|
314 |
*/ |
|
315 |
public static BufferedImage rotateImage(final BufferedImage inputImage, |
|
316 |
final int degree) { |
|
317 |
int w = inputImage.getWidth(); |
|
318 |
int h = inputImage.getHeight(); |
|
319 |
int type = inputImage.getColorModel().getTransparency(); |
|
320 |
BufferedImage img=new BufferedImage(w, h, type); |
|
321 |
Graphics2D graphics2d =img.createGraphics(); |
|
322 |
//开启抗锯齿 |
|
323 |
RenderingHints renderingHints=new RenderingHints(RenderingHints.KEY_INTERPOLATION, |
|
324 |
RenderingHints.VALUE_ANTIALIAS_ON); |
|
325 |
//使用高质量压缩 |
|
326 |
renderingHints.put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_RENDER_QUALITY); |
|
327 |
graphics2d.setRenderingHints(renderingHints); |
|
328 |
graphics2d.rotate(Math.toRadians(degree), w / 2, h / 2); |
|
329 |
graphics2d.drawImage(inputImage, 0, 0, null); |
|
330 |
graphics2d.dispose(); |
|
331 |
return img; |
|
332 |
} |
|
333 |
/** |
|
334 |
* 水平翻转图像 |
|
335 |
* |
|
336 |
* @param bufferedimage 目标图像 |
|
337 |
* @return |
|
338 |
*/ |
|
339 |
public static BufferedImage flipHorizontalImage(final BufferedImage inputImage) { |
|
340 |
int w = inputImage.getWidth(); |
|
341 |
int h = inputImage.getHeight(); |
|
342 |
BufferedImage img; |
|
343 |
Graphics2D graphics2d; |
|
344 |
(graphics2d = (img = new BufferedImage(w, h, inputImage |
|
345 |
.getColorModel().getTransparency())).createGraphics()) |
|
346 |
.drawImage(inputImage, 0, 0, w, h, w, 0, 0, h, null); |
|
347 |
graphics2d.dispose(); |
|
348 |
return img; |
|
349 |
} |
|
350 |
/** |
|
351 |
* 竖直翻转图像 |
|
352 |
* |
|
353 |
* @param bufferedimage 目标图像 |
|
354 |
* @return |
|
355 |
*/ |
|
356 |
public static BufferedImage flipVerticalImage(final BufferedImage inputImage) { |
|
357 |
int w = inputImage.getWidth(); |
|
358 |
int h = inputImage.getHeight(); |
|
359 |
BufferedImage img; |
|
360 |
Graphics2D graphics2d; |
|
361 |
(graphics2d = (img = new BufferedImage(w, h, inputImage |
|
362 |
.getColorModel().getTransparency())).createGraphics()) |
|
363 |
.drawImage(inputImage, 0, 0, w, h, 0, h, w, 0, null); |
|
364 |
graphics2d.dispose(); |
|
365 |
return img; |
|
366 |
} |
|
367 |
/** |
|
368 |
* 图片水印 |
|
369 |
* |
|
370 |
* @param inputImage |
|
371 |
* 待处理图像 |
|
372 |
* @param markImage |
|
373 |
* 水印图像 |
|
374 |
* @param x |
|
375 |
* 水印位于图片左上角的 x 坐标值 |
|
376 |
* @param y |
|
377 |
* 水印位于图片左上角的 y 坐标值 |
|
378 |
* @param alpha |
|
379 |
* 水印透明度 0.1f ~ 1.0f |
|
380 |
* */ |
|
381 |
public static BufferedImage waterMark(BufferedImage inputImage,BufferedImage markImage, int x, int y, |
|
382 |
float alpha) { |
|
383 |
BufferedImage image = new BufferedImage(inputImage.getWidth(), inputImage |
|
384 |
.getHeight(), BufferedImage.TYPE_INT_ARGB); |
|
385 |
Graphics2D g = image.createGraphics(); |
|
386 |
g.drawImage(inputImage, 0, 0, null); |
|
387 |
// 加载水印图像 |
|
388 |
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, |
|
389 |
alpha)); |
|
390 |
g.drawImage(markImage, x, y, null); |
|
391 |
g.dispose(); |
|
392 |
return image; |
|
393 |
} |
|
394 |
/** |
|
395 |
* 文字水印 |
|
396 |
* |
|
397 |
* @param inputImage |
|
398 |
* 待处理图像 |
|
399 |
* @param text |
|
400 |
* 水印文字 |
|
401 |
* @param font |
|
402 |
* 水印字体信息 |
|
403 |
* @param color |
|
404 |
* 水印字体颜色 |
|
405 |
* @param x |
|
406 |
* 水印位于图片左上角的 x 坐标值 |
|
407 |
* @param y |
|
408 |
* 水印位于图片左上角的 y 坐标值 |
|
409 |
* @param alpha |
|
410 |
* 水印透明度 0.1f ~ 1.0f |
|
411 |
*/ |
|
412 |
public static BufferedImage textMark(BufferedImage inputImage, String text, Font font, |
|
413 |
Color color, int x, int y, float alpha) { |
|
414 |
Font dfont = (font == null) ? new Font("宋体", 20, 13) : font; |
|
415 |
BufferedImage image = new BufferedImage(inputImage.getWidth(), inputImage |
|
416 |
.getHeight(), BufferedImage.TYPE_INT_ARGB); |
|
417 |
Graphics2D g = image.createGraphics(); |
|
418 |
g.drawImage(inputImage, 0, 0, null); |
|
419 |
g.setColor(color); |
|
420 |
g.setFont(dfont); |
|
421 |
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, |
|
422 |
alpha)); |
|
423 |
g.drawString(text, x, y); |
|
424 |
g.dispose(); |
|
425 |
return image; |
|
426 |
} |
|
427 |
/** |
|
428 |
* 图像彩色转黑白色 |
|
429 |
* @param inputImage |
|
430 |
* @return 转换后的BufferedImage |
|
431 |
*/ |
|
432 |
public final static BufferedImage toGray(BufferedImage inputImage) |
|
433 |
{ |
|
434 |
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY); |
|
435 |
//对源 BufferedImage 进行颜色转换。如果目标图像为 null, |
|
436 |
//则根据适当的 ColorModel 创建 BufferedImage。 |
|
437 |
ColorConvertOp op = new ColorConvertOp(cs, null); |
|
438 |
return op.filter(inputImage, null); |
|
439 |
} |
|
440 |
/** |
|
441 |
* 图像彩色转为黑白 |
|
442 |
* @param srcImageFile |
|
443 |
* 源图像地址 |
|
444 |
* @param destImageFile |
|
445 |
* 目标图像地址 |
|
446 |
* @param formatType |
|
447 |
* 目标图像格式:如果formatType为null;将默认转换为PNG |
|
448 |
*/ |
|
449 |
public final static void toGray(String srcImageFile, String destImageFile,String formatType) |
|
450 |
{ |
|
451 |
try |
|
452 |
{ |
|
453 |
BufferedImage src = ImageIO.read(new File(srcImageFile)); |
|
454 |
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY); |
|
455 |
ColorConvertOp op = new ColorConvertOp(cs, null); |
|
456 |
src = op.filter(src, null); |
|
457 |
//如果formatType为null;将默认转换为PNG |
|
458 |
if(formatType==null){ |
|
459 |
formatType="PNG"; |
|
460 |
} |
|
461 |
ImageIO.write(src,formatType,new File(destImageFile)); |
|
462 |
} catch (IOException e) |
|
463 |
{ |
|
464 |
e.printStackTrace(); |
|
465 |
} |
|
466 |
} |
|
467 |
/** |
|
468 |
* 图像类型转换:GIF->JPG、GIF->PNG、PNG->JPG、PNG->GIF(X)、BMP->PNG |
|
469 |
* |
|
470 |
* @param inputImage |
|
471 |
* 源图像地址 |
|
472 |
* @param formatType |
|
473 |
* 包含格式非正式名称的 String:如JPG、JPEG、GIF等 |
|
474 |
* @param destImageFile |
|
475 |
* 目标图像地址 |
|
476 |
*/ |
|
477 |
public final static void convert(BufferedImage inputImage, String formatType,String destImageFile) |
|
478 |
{ |
|
479 |
try |
|
480 |
{ |
|
481 |
ImageIO.write(inputImage, formatType, new File(destImageFile)); |
|
482 |
} catch (Exception e) |
|
483 |
{ |
|
484 |
e.printStackTrace(); |
|
485 |
} |
|
486 |
} |
|
487 |
/** |
|
488 |
* 图像切割(指定切片的行数和列数) |
|
489 |
* |
|
490 |
* @param srcImageFile |
|
491 |
* 源图像地址 |
|
492 |
* @param destDir |
|
493 |
* 切片目标文件夹 |
|
494 |
* @param formatType |
|
495 |
* 目标格式 |
|
496 |
* @param rows |
|
497 |
* 目标切片行数。默认2,必须是范围 [1, 20] 之内 |
|
498 |
* @param cols |
|
499 |
* 目标切片列数。默认2,必须是范围 [1, 20] 之内 |
|
500 |
*/ |
|
501 |
public final static void cut(BufferedImage inputImage, String destDir, |
|
502 |
String formatType,int rows, int cols) |
|
503 |
{ |
|
504 |
try |
|
505 |
{ |
|
506 |
if (rows <= 0 || rows > 20) |
|
507 |
rows = 2; // 切片行数 |
|
508 |
if (cols <= 0 || cols > 20) |
|
509 |
cols = 2; // 切片列数 |
|
510 |
// 读取源图像 |
|
511 |
//BufferedImage bi = ImageIO.read(new File(srcImageFile)); |
|
512 |
int w = inputImage.getHeight(); // 源图宽度 |
|
513 |
int h = inputImage.getWidth(); // 源图高度 |
|
514 |
if (w > 0 && h > 0) |
|
515 |
{ |
|
516 |
Image img; |
|
517 |
ImageFilter cropFilter; |
|
518 |
Image image = inputImage.getScaledInstance(w, h, |
|
519 |
Image.SCALE_DEFAULT); |
|
520 |
int destWidth = w; // 每张切片的宽度 |
|
521 |
int destHeight = h; // 每张切片的高度 |
|
522 |
// 计算切片的宽度和高度 |
|
523 |
if (w % cols == 0) |
|
524 |
{ |
|
525 |
destWidth = w / cols; |
|
526 |
} else |
|
527 |
{ |
|
528 |
destWidth = (int) Math.floor(w / cols) + 1; |
|
529 |
} |
|
530 |
if (h % rows == 0) |
|
531 |
{ |
|
532 |
destHeight = h / rows; |
|
533 |
} else |
|
534 |
{ |
|
535 |
destHeight = (int) Math.floor(h / rows) + 1; |
|
536 |
} |
|
537 |
// 循环建立切片 |
|
538 |
// 改进的想法:是否可用多线程加快切割速度 |
|
539 |
for (int i = 0; i < rows; i++) |
|
540 |
{ |
|
541 |
for (int j = 0; j < cols; j++) |
|
542 |
{ |
|
543 |
// 四个参数分别为图像起点坐标和宽高 |
|
544 |
// 即: CropImageFilter(int x,int y,int width,int height) |
|
545 |
cropFilter = new CropImageFilter(j * destWidth, i |
|
546 |
* destHeight, destWidth, destHeight); |
|
547 |
img = Toolkit.getDefaultToolkit().createImage( |
|
548 |
new FilteredImageSource(image.getSource(), |
|
549 |
cropFilter)); |
|
550 |
BufferedImage tag = new BufferedImage(destWidth, |
|
551 |
destHeight, BufferedImage.TYPE_INT_ARGB); |
|
552 |
Graphics g = tag.getGraphics(); |
|
553 |
g.drawImage(img, 0, 0, null); // 绘制缩小后的图 |
|
554 |
g.dispose(); |
|
555 |
// 输出为文件 |
|
556 |
ImageIO.write(tag, formatType, new File(destDir + "_r" + i |
|
557 |
+ "_c" + j + "."+formatType.toLowerCase())); |
|
558 |
} |
|
559 |
} |
|
560 |
} |
|
561 |
} catch (Exception e) |
|
562 |
{ |
|
563 |
e.printStackTrace(); |
|
564 |
} |
|
565 |
} |
|
566 |
/** |
|
567 |
* 给图片添加文字水印 |
|
568 |
* |
|
569 |
* @param pressText |
|
570 |
* 水印文字 |
|
571 |
* @param srcImageFile |
|
572 |
* 源图像地址 |
|
573 |
* @param destImageFile |
|
574 |
* 目标图像地址 |
|
575 |
* @param fontName |
|
576 |
* 水印的字体名称 |
|
577 |
* @param fontStyle |
|
578 |
* 水印的字体样式 |
|
579 |
* @param color |
|
580 |
* 水印的字体颜色 |
|
581 |
* @param fontSize |
|
582 |
* 水印的字体大小 |
|
583 |
* @param x |
|
584 |
* 修正值 |
|
585 |
* @param y |
|
586 |
* 修正值 |
|
587 |
* @param alpha |
|
588 |
* 透明度:alpha 必须是范围 [0.0, 1.0] 之内(包含边界值)的一个浮点数字 |
|
589 |
* @param formatType |
|
590 |
* 目标格式 |
|
591 |
*/ |
|
592 |
public final static void pressText(String pressText, String srcImageFile, |
|
593 |
String destImageFile, String fontName, int fontStyle, Color color, |
|
594 |
int fontSize, int x, int y, float alpha,String formatType) |
|
595 |
{ |
|
596 |
try |
|
597 |
{ |
|
598 |
File img = new File(srcImageFile); |
|
599 |
Image src = ImageIO.read(img); |
|
600 |
int width = src.getWidth(null); |
|
601 |
int height = src.getHeight(null); |
|
602 |
BufferedImage image = new BufferedImage(width, height, |
|
603 |
BufferedImage.TYPE_INT_ARGB); |
|
604 |
Graphics2D g = image.createGraphics(); |
|
605 |
g.drawImage(src, 0, 0, width, height, null); |
|
606 |
g.setColor(color); |
|
607 |
g.setFont(new Font(fontName, fontStyle, fontSize)); |
|
608 |
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, |
|
609 |
alpha)); |
|
610 |
// 在指定坐标绘制水印文字 |
|
611 |
g.drawString(pressText, (width - (getLength(pressText) * fontSize)) |
|
612 |
/ 2 + x, (height - fontSize) / 2 + y); |
|
613 |
g.dispose(); |
|
614 |
ImageIO.write((BufferedImage) image, formatType, |
|
615 |
new File(destImageFile));// 输出到文件流 |
|
616 |
} catch (Exception e) |
|
617 |
{ |
|
618 |
e.printStackTrace(); |
|
619 |
} |
|
620 |
} |
|
621 |
/** |
|
622 |
* 给图片添加图片水印 |
|
623 |
* |
|
624 |
* @param pressImg |
|
625 |
* 水印图片 |
|
626 |
* @param srcImageFile |
|
627 |
* 源图像地址 |
|
628 |
* @param destImageFile |
|
629 |
* 目标图像地址 |
|
630 |
* @param x |
|
631 |
* 修正值。 默认在中间 |
|
632 |
* @param y |
|
633 |
* 修正值。 默认在中间 |
|
634 |
* @param alpha |
|
635 |
* 透明度:alpha 必须是范围 [0.0, 1.0] 之内(包含边界值)的一个浮点数字 |
|
636 |
* @param formatType |
|
637 |
* 目标格式 |
|
638 |
*/ |
|
639 |
public final static void pressImage(String pressImg, String srcImageFile, |
|
640 |
String destImageFile, int x, int y, float alpha,String formatType) |
|
641 |
{ |
|
642 |
try |
|
643 |
{ |
|
644 |
File img = new File(srcImageFile); |
|
645 |
Image src = ImageIO.read(img); |
|
646 |
int wideth = src.getWidth(null); |
|
647 |
int height = src.getHeight(null); |
|
648 |
BufferedImage image = new BufferedImage(wideth, height, |
|
649 |
BufferedImage.TYPE_INT_ARGB); |
|
650 |
Graphics2D g = image.createGraphics(); |
|
651 |
g.drawImage(src, 0, 0, wideth, height, null); |
|
652 |
// 水印文件 |
|
653 |
Image src_biao = ImageIO.read(new File(pressImg)); |
|
654 |
int wideth_biao = src_biao.getWidth(null); |
|
655 |
int height_biao = src_biao.getHeight(null); |
|
656 |
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, |
|
657 |
alpha)); |
|
658 |
g.drawImage(src_biao, (wideth - wideth_biao) / 2, |
|
659 |
(height - height_biao) / 2, wideth_biao, height_biao, null); |
|
660 |
// 水印文件结束 |
|
661 |
g.dispose(); |
|
662 |
ImageIO.write((BufferedImage) image, formatType, |
|
663 |
new File(destImageFile)); |
|
664 |
} catch (Exception e) |
|
665 |
{ |
|
666 |
e.printStackTrace(); |
|
667 |
} |
|
668 |
} |
|
669 |
/** |
|
670 |
* 计算text的长度(一个中文算两个字符) |
|
671 |
* |
|
672 |
* @param text |
|
673 |
* @return |
|
674 |
*/ |
|
675 |
public final static int getLength(String text) |
|
676 |
{ |
|
677 |
int length = 0; |
|
678 |
for (int i = 0; i < text.length(); i++) |
|
679 |
{ |
|
680 |
if (new String(text.charAt(i) + "").getBytes().length > 1) |
|
681 |
{ |
|
682 |
length += 2; |
|
683 |
} else |
|
684 |
{ |
|
685 |
length += 1; |
|
686 |
} |
|
687 |
} |
|
688 |
return length / 2; |
|
689 |
} |
|
690 |
} |