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com.devops4j.common.image.ImageResize Maven / Gradle / Ivy
package com.devops4j.common.image;
import java.awt.*;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FilenameFilter;
import java.io.IOException;
/**
* Eclipse默认把这些受访问限制的API设成了ERROR。
* 只要把Windows-Preferences-Java-Complicer-Errors/Warnings
* 里面的Deprecated and restricted API中的Forbidden references(access rules)选为Warning就可以编译通过。
*/
import com.drew.imaging.ImageMetadataReader;
import com.drew.imaging.ImageProcessingException;
import com.drew.metadata.*;
import com.drew.metadata.exif.ExifIFD0Directory;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGEncodeParam;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
import javax.imageio.ImageIO;
public class ImageResize {
String source;
String output;
boolean verbose;
static final String MESSAGE;
static {
StringBuffer buffer = new StringBuffer();
buffer.append("图片批量缩放调整工具").append("\n");
buffer.append(" -source(s): 图片源文件夹").append("\n");
buffer.append(" -output(o): 图片输出文件夹").append("\n");
buffer.append(" -width(w): 指定宽度").append("\n");
buffer.append(" -height(h): 指定高度").append("\n");
buffer.append(" -percent(p): 缩放比例").append("\n");
buffer.append(" -max(m): 最大的高度或者宽度").append("\n");
buffer.append(" -less(l): y/n 是否小于计算尺寸的图片需要进行放大").append("\n");
buffer.append(" -verbose(v): y/n 唐生模式").append("\n");
MESSAGE = buffer.toString();
}
public static void main(String[] args) throws ImageProcessingException, MetadataException, IOException {
if (args.length == 0 || args.length % 2 != 0) {
System.out.println(MESSAGE);
System.exit(0);
return;
}
String source = null;
String output = null;
int width = 0;
int height = 0;
double percent = -1d;
int max = -1;
boolean less = true;
boolean verbose = false;
for (int i = 0; i < args.length; i += 2) {
String name = args[i];
String value = args[i + 1];
switch (name) {
case "-source":
case "-s":
source = value;
break;
case "-output":
case "-o":
output = value;
break;
case "-width":
case "-w":
width = Integer.valueOf(value);
break;
case "-height":
case "-h":
height = Integer.valueOf(value);
break;
case "-percent":
case "-p":
percent = Double.valueOf(value);
break;
case "-max":
case "-m":
max = Integer.valueOf(value);
break;
case "-less":
case "-l":
less = "y".equals(value) || "true".equals(value);
break;
case "-verbose":
case "-v":
verbose = "y".equals(value) || "true".equals(value);
if(verbose){
System.out.println("开始唐生模式");
}
break;
default:
System.out.println(MESSAGE);
System.exit(0);
return;
}
}
if(verbose){
System.out.println("source:" + source);
System.out.println("output:" + output);
System.out.println("width:" + width);
System.out.println("height:" + height);
System.out.println("percent:" + percent);
System.out.println("max:" + max);
System.out.println("less:" + less);
System.out.println("verbose:" + verbose);
}
ImageResize imageResize = new ImageResize(source, output, verbose);
imageResize.resize(width, height, percent, max, less);
}
public ImageResize(String source, String output, boolean verbose) {
this.source = source;
this.output = output;
this.verbose = verbose;
}
public void resize(int max, boolean less) throws Exception {
resize(0, 0, -1, max, less);
}
public void resize(int width, int height, boolean less) throws Exception {
resize(width, height, -1, -1, less);
}
public void resize(double zoom, boolean less) throws Exception {
resize(0, 0, zoom, -1, less);
}
public void resize(int width, int height, double zoom, int max, boolean less) throws IOException, ImageProcessingException, MetadataException {
File dir = new File(source);
if (!dir.isDirectory()) {
System.err.println("is not a dir");
return;
}
File[] files = dir.listFiles(new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
String fileName = name.toLowerCase();
return fileName.endsWith(".jpg") || fileName.endsWith(".jpge") || fileName.endsWith(".png");
}
});
File outputFile = new File(output);
if (!outputFile.exists() && !outputFile.isDirectory()) {
outputFile.mkdir();
}
int i = 0;
for (File file : files) {
++i;
int progress = (int) ((double)i / (double)files.length * 100);
System.out.println(progress+ "%");
if(verbose){
System.out.println("处理文件:" + file + " (" + (i) + "/"+ files.length + ")");
}
resize(file, width, height, zoom, max, less);
}
}
public void resize(File file, int newWidth, int newHeight, double orientation) {
String fileName = file.getName().toLowerCase();
if (fileName.endsWith(".png")) {
resizePNG(file, newWidth, newHeight, orientation);
} else if (fileName.endsWith("jpg") || fileName.endsWith(".jpge")) {
resizeJPGE(file, newWidth, newHeight, orientation);
}
}
public void resize(File file, int newWidth, int newHeight, double zoom, int max, boolean less) throws ImageProcessingException, IOException, MetadataException {
double orientation = 0.0d;
int width = 0;
int height = 0;
try {
BufferedImage bi = ImageIO.read(file);
height = bi.getHeight();
width = bi.getWidth();
Metadata metadata = ImageMetadataReader.readMetadata(file);
ExifIFD0Directory exifIFD0Directory = metadata.getFirstDirectoryOfType(ExifIFD0Directory.class);
if (exifIFD0Directory != null) {
for (Tag tag : exifIFD0Directory.getTags()) {
if (tag.getTagName().equals("Orientation")) {
int val = exifIFD0Directory.getInt(ExifIFD0Directory.TAG_ORIENTATION);
// System.out.println(exifIFD0Directory.getDescription(ExifIFD0Directory.TAG_ORIENTATION));
switch (val) {
case 1:
// return "Top, left side (Horizontal / normal)";
orientation = 0d;
break;
case 2:
// return "Top, right side (Mirror horizontal)";
break;
case 3:
// return "Bottom, right side (Rotate 180)";
orientation = 180d;
break;
case 4:
// return "Bottom, left side (Mirror vertical)";
break;
case 5:
// return "Left side, top (Mirror horizontal and rotate 270 CW)";.
break;
case 6:
// return "Right side, top (Rotate 90 CW)";
orientation = 90d;
break;
case 7:
// return "Right side, bottom (Mirror horizontal and rotate 90 CW)";
break;
case 8:
// return "Left side, bottom (Rotate 270 CW)";
orientation = 270d;
break;
default:
// return String.valueOf(orientation);
break;
}
}
}
}
if (newWidth <= 0 && newHeight <= 0) {
if (zoom <= 0) {
if (max < 0) {
throw new RuntimeException("无效的缩放比了和固定最大宽度");
}
if (bi.getHeight() >= bi.getWidth()) {
if (less) {
zoom = (double) max / (double) height;
} else {
zoom = 1.0d;
}
newWidth = (int) (((double) bi.getWidth()) * zoom);
newHeight = (int) (((double) bi.getHeight()) * zoom);
} else {
if (less) {
zoom = (double) max / (double) width;
} else {
zoom = 1.0d;
}
newWidth = (int) (((double) bi.getWidth()) * zoom);
newHeight = (int) (((double) bi.getHeight()) * zoom);
}
} else {
newWidth = (int) (((double) bi.getWidth()) * zoom);
newHeight = (int) (((double) bi.getHeight()) * zoom);
}
} else if (newWidth <= 0 && newHeight > 0) {
zoom = (double) newHeight / (double) height;
newWidth = (int) (((double) bi.getWidth()) * zoom);
} else if (newWidth > 0 && newHeight <= 0) {
zoom = (double) newWidth / (double) width;
newHeight = (int) (((double) bi.getHeight()) * zoom);
} else {//使用输入的高和宽
}
resize(file, newWidth, newHeight, orientation);
} catch (Exception e) {
e.printStackTrace();
}
}
public void resizePNG(File file, int newWidth, int newHeight, double orientation) {
try {
BufferedImage bi = ImageIO.read(file);
BufferedImage to = new BufferedImage(newWidth, newHeight, BufferedImage.TYPE_INT_BGR);
Graphics2D g2d = to.createGraphics();
to = g2d.getDeviceConfiguration().createCompatibleImage(newWidth, newHeight, Transparency.TRANSLUCENT);
g2d.dispose();
g2d = to.createGraphics();
AffineTransform origXform = g2d.getTransform();
AffineTransform newXform = (AffineTransform) (origXform.clone());
newXform.rotate(Math.toRadians(orientation), newWidth / 2.0, newHeight / 2.0); //旋转270度
g2d.setTransform(newXform);
Image from = bi.getScaledInstance(newWidth, newHeight, BufferedImage.SCALE_AREA_AVERAGING);
g2d.drawImage(from, 0, 0, null);
g2d.dispose();
ImageIO.write(to, "png", new File(new File(output), file.getName()));
} catch (Exception e) {
e.printStackTrace();
}
}
public void resizeJPGE(File file, int newWidth, int newHeight, double orientation) {
try {
BufferedImage bi = ImageIO.read(file);
Graphics2D g2d = bi.createGraphics();
AffineTransform origXform = g2d.getTransform();
AffineTransform newXform = (AffineTransform) (origXform.clone());
newXform.rotate(Math.toRadians(orientation), newWidth / 2.0, newHeight / 2.0); //旋转270度
BufferedImage to = new BufferedImage(newWidth, newHeight, BufferedImage.TYPE_INT_BGR);
Graphics2D newG2d = to.createGraphics();
newG2d.setTransform(newXform);
newG2d.drawImage(bi, 0, 0, newWidth, newHeight, null);
FileOutputStream out = new FileOutputStream(new File(new File(output), file.getName()));
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
JPEGEncodeParam jep = JPEGCodec.getDefaultJPEGEncodeParam(to);
jep.setQuality(0.9f, true);
encoder.encode(to, jep);
out.close();
bi.flush();
} catch (Exception e) {
e.printStackTrace();
}
}
}
