在上一个版本：java画图程序_图片用字母画出来_源码发布 基础上，增加了图片同比例缩放，使得大像素图片可以很好地显示画在Notepad++中。
项目结构：
运行效果1：
原图：http://images.cnblogs.com/cnblogs_com/hongten/356471/o_imagehandler_result1.png
运行效果2：
原图：http://images.cnblogs.com/cnblogs_com/hongten/356471/o_imagehandler_result2.png
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源码部分：
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/imageHandler/src/com/b510/image/client/Client.java
/**
*
*/
package com.b510.image.client; import java.io.File; import com.b510.image.common.Common;
import com.b510.image.util.ImageUtil;
import com.b510.image.util.ScaledImageUtil;
import com.b510.image.util.TextUtil; /**
* This project is a tool for processing the image. <br>Including TWO functions :
* <li>Color image to converted black and white picture.
* <li>Imitating the original image to paint into the TXT file with alphabets.
* You can change the code according to your requirement.
*
* @author Hongten
* @mail hongtenzone@foxmail.com
* @created Jul 23, 2014
*/
public class Client { public static String SCALED_IMAGE = Common.SCALED + Common.FULL_STOP + ScaledImageUtil.getPostfix(Common.ORIGINAL); public static void main(String[] args) {
//colorImage2BWPic();
painting(Common.ORIGINAL, SCALED_IMAGE, 1);
// remoteImageHandler("E:/images/ipad/photo"); //NOTE: Provider your folder path, which includ some pictures
} /**
* Continuously review images
* @param remotePath Other folder path(Including pictures)
*/
private static void remoteImageHandler(String remotePath) {
File file = new File(remotePath);
File[] fileList = file.listFiles();
for (int i = 0; i < fileList.length; i++) {
if(fileList[i].isFile()){
String originalImagePath = fileList[i].getAbsolutePath();
System.out.println("Processing ... " + originalImagePath);
SCALED_IMAGE = Common.SCALED + Common.FULL_STOP + ScaledImageUtil.getPostfix(originalImagePath);
painting(originalImagePath, SCALED_IMAGE, 1);
}
try {
Thread.sleep(4000); // every four seconds
} catch (InterruptedException e) {
e.printStackTrace();
}
}
} private static void painting(String originalImagePath, String scalImagepath, int scaled) {
ScaledImageUtil.scaledImage(originalImagePath, scaled, scalImagepath);
double[][] result = ImageUtil.getImageGRB(scalImagepath);
StringBuffer stringBuffer = ImageUtil.getCanvas(result);
TextUtil.write2File(stringBuffer);
} /**
* Color image to converted black and white picture.
*/
private static void colorImage2BWPic() {
File input = new File(Common.ORIGINAL_IMAGE);
File out = new File(Common.PROCESSED_IMAGE);
ImageUtil.colorImage2BlackAndWhitePicture(input, out);
}
}
/imageHandler/src/com/b510/image/common/Common.java
/**
*
*/
package com.b510.image.common; /**
* @author Hongten
* @created Jul 23, 2014
*/
public class Common { public static final String PATH = "src/com/b510/image/resources/"; public static final String ORIGINAL = PATH + "original.jpg";
public static final String SCALED = PATH + "scaled"; public static final String ORIGINAL_IMAGE = PATH + "original_image.png";
public static final String PROCESSED_IMAGE = PATH + "processed_image.png"; public static final String OUTPUT_TXT = PATH + "output.txt"; public static final String PROCESSED_SUCCESS = "Processed successfully...";
public static final String PROCESS_ERROR = "Processing encounters error!"; public static final String R = "R";
public static final String A = "A";
public static final String X = "X";
public static final String M = "M";
public static final String W = "W";
public static final String H = "H";
public static final String E = "E";
public static final String J = "J";
public static final String L = "L";
public static final String C = "C";
public static final String V = "V";
public static final String Z = "Z";
public static final String Q = "Q";
public static final String T = "T";
public static final String r = "r";
public static final String s = "s";
public static final String w = "w";
public static final String u = "u";
public static final String l = "l";
public static final String i = "i";
public static final String e = "e";
public static final String m = "m";
public static final String a = "a";
public static final String COMMA = ",";
public static final String FULL_STOP = ".";
public static final String BLANK = " "; public static final String NEW_LINE = "\n";
}
/imageHandler/src/com/b510/image/util/ImageUtil.java
/**
*
*/
package com.b510.image.util; import java.awt.Image;
import java.awt.color.ColorSpace;
import java.awt.image.BufferedImage;
import java.awt.image.ColorConvertOp;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException; import javax.imageio.ImageIO; import com.b510.image.common.Common;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder; /**
* @author Hongten
* @created Jul 23, 2014
*/
public class ImageUtil { private static int height = 0;
private static int width = 0; /**
* Color image is converted to black and white picture.
* @param input
* @param out
*/
public static void colorImage2BlackAndWhitePicture(File input, File out) {
try {
Image image = ImageIO.read(input);
int srcH = image.getHeight(null);
int srcW = image.getWidth(null);
BufferedImage bufferedImage = new BufferedImage(srcW, srcH, BufferedImage.TYPE_3BYTE_BGR);
bufferedImage.getGraphics().drawImage(image, 0, 0, srcW, srcH, null);
bufferedImage = new ColorConvertOp(ColorSpace.getInstance(ColorSpace.CS_GRAY), null).filter(bufferedImage, null);
FileOutputStream fos = new FileOutputStream(out);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(fos);
encoder.encode(bufferedImage);
fos.close();
System.out.println(Common.PROCESSED_SUCCESS);
} catch (Exception e) {
throw new IllegalStateException(Common.PROCESS_ERROR, e);
}
} /**
* Get the image(*.jpg, *.png.etc) GRB value
* @param filePath the original image path
* @return
*/
public static double[][] getImageGRB(String filePath) {
File file = new File(filePath);
double[][] result = null;
if (!file.exists()) {
return result;
}
try {
BufferedImage bufImg = readImage(file);
result = new double[height][width];
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
double temp = Double.valueOf(bufImg.getRGB(x, y) & 0xFFFFFF);
result[y][x] = Math.floor(Math.cbrt(temp));
}
}
} catch (IOException e) {
e.printStackTrace();
}
return result;
} /**
* Read the original image to convert BufferedImage
* @param file Original image path
* @return
* @see BufferedImage
* @throws IOException
*/
private static BufferedImage readImage(File file) throws IOException {
BufferedImage bufImg = ImageIO.read(file);
height = bufImg.getHeight();
width = bufImg.getWidth();
return bufImg;
} /**
* Get the canvas, which is made up of alphabets.
* @param result
* @return
*/
public static StringBuffer getCanvas(double[][] result) {
StringBuffer stringBuffer = new StringBuffer();
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
fullBlank(result, stringBuffer, y, x);
}
stringBuffer.append(Common.NEW_LINE);
}
return new StringBuffer(stringBuffer.substring(0, stringBuffer.length() - 1));
} /**
* Full blank
* @param result
* @param stringBuffer
* @param y
* @param x
*/
private static void fullBlank(double[][] result, StringBuffer stringBuffer, int y, int x) {
if (result[y][x] > 0.0 && result[y][x] < 168.0) {
fullBlackColor(result, stringBuffer, y, x);
} else if (result[y][x] >= 168.0 && result[y][x] < 212.0) {
fullGreyColor(result, stringBuffer, y, x);
} else {
fullWhiteColor(result, stringBuffer, y, x);
}
} /**
* Full black color, and you can change the alphabet if you need.
* @param result
* @param stringBuffer
* @param y
* @param x
*/
private static void fullBlackColor(double[][] result, StringBuffer stringBuffer, int y, int x) {
if (result[y][x] > 0.0 && result[y][x] < 25.0) {
stringBuffer.append(Common.R);
} else if (result[y][x] >= 25.0 && result[y][x] < 50.0) {
stringBuffer.append(Common.R);
} else if (result[y][x] >= 50.0 && result[y][x] < 75.0) {
stringBuffer.append(Common.A);
} else if (result[y][x] >= 75.0 && result[y][x] < 100.0) {
stringBuffer.append(Common.X);
} else if (result[y][x] >= 100.0 && result[y][x] < 125.0) {
stringBuffer.append(Common.R);
} else if (result[y][x] >= 125.0 && result[y][x] < 150.0) {
stringBuffer.append(Common.A);
} else if (result[y][x] >= 150.0 && result[y][x] < 154.0) {
stringBuffer.append(Common.X);
} else if (result[y][x] >= 154.0 && result[y][x] < 158.0) {
stringBuffer.append(Common.M);
} else if (result[y][x] >= 158.0 && result[y][x] < 162.0) {
stringBuffer.append(Common.W);
} else if (result[y][x] >= 162.0 && result[y][x] < 168.0) {
stringBuffer.append(Common.M);
}
} /**
* Full grey color
* @param result
* @param stringBuffer
* @param y
* @param x
*/
private static void fullGreyColor(double[][] result, StringBuffer stringBuffer, int y, int x) {
if (result[y][x] >= 168.0 && result[y][x] < 172.0) {
stringBuffer.append(Common.H);
} else if (result[y][x] >= 172.0 && result[y][x] < 176.0) {
stringBuffer.append(Common.E);
} else if (result[y][x] >= 176.0 && result[y][x] < 180.0) {
stringBuffer.append(Common.H);
} else if (result[y][x] >= 180.0 && result[y][x] < 184.0) {
stringBuffer.append(Common.H);
} else if (result[y][x] >= 184.0 && result[y][x] < 188.0) {
stringBuffer.append(Common.J);
} else if (result[y][x] >= 188.0 && result[y][x] < 192.0) {
stringBuffer.append(Common.L);
} else if (result[y][x] >= 192.0 && result[y][x] < 196.0) {
stringBuffer.append(Common.C);
} else if (result[y][x] >= 196.0 && result[y][x] < 200.0) {
stringBuffer.append(Common.V);
} else if (result[y][x] >= 200.0 && result[y][x] < 204.0) {
stringBuffer.append(Common.Z);
} else if (result[y][x] >= 204.0 && result[y][x] < 208.0) {
stringBuffer.append(Common.Q);
} else if (result[y][x] >= 208.0 && result[y][x] < 212.0) {
stringBuffer.append(Common.T);
}
} /**
* Full white color
* @param result
* @param stringBuffer
* @param y
* @param x
*/
private static void fullWhiteColor(double[][] result, StringBuffer stringBuffer, int y, int x) {
if (result[y][x] >= 212.0 && result[y][x] < 216.0) {
stringBuffer.append(Common.r);
} else if (result[y][x] >= 216.0 && result[y][x] < 220.0) {
stringBuffer.append(Common.s);
} else if (result[y][x] >= 220.0 && result[y][x] < 224.0) {
stringBuffer.append(Common.w);
} else if (result[y][x] >= 224.0 && result[y][x] < 228.0) {
stringBuffer.append(Common.u);
} else if (result[y][x] >= 228.0 && result[y][x] < 232.0) {
stringBuffer.append(Common.l);
} else if (result[y][x] >= 232.0 && result[y][x] < 236.0) {
stringBuffer.append(Common.i);
} else if (result[y][x] >= 236.0 && result[y][x] < 240.0) {
stringBuffer.append(Common.e);
} else if (result[y][x] >= 240.0 && result[y][x] < 244.0) {
stringBuffer.append(Common.COMMA);
} else if (result[y][x] >= 244.0 && result[y][x] < 248.0) {
stringBuffer.append(Common.m);
} else if (result[y][x] >= 248.0 && result[y][x] < 252.0) {
stringBuffer.append(Common.a);
} else if (result[y][x] >= 252.0 && result[y][x] < 257.0) {
stringBuffer.append(Common.BLANK);
}
}
}
/imageHandler/src/com/b510/image/util/ScaledImageUtil.java
/**
*
*/
package com.b510.image.util; import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException; import javax.imageio.ImageIO;
import javax.swing.ImageIcon; import com.b510.image.common.Common; /**
* @author Hongten
* @created 2014-7-26
*/
public class ScaledImageUtil { public static int snapHeightMax = 196;
public static int snapWidthMax = 200; public static void scaledImage(String originalImagePath, int scaled, String scaledImagePath) {
try {
ImageIcon icon = getImage(ImageIO.read(new File(originalImagePath)), 5);
BufferedImage savedImage = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(), BufferedImage.TYPE_3BYTE_BGR);
savedImage.createGraphics().drawImage(icon.getImage(), 0, 0, null);
ImageIO.write(savedImage, getPostfix(originalImagePath), new File(scaledImagePath));
System.out.println(Common.PROCESSED_SUCCESS);
} catch (IOException e) {
e.printStackTrace();
}
} public static String getPostfix(String inputFilePath) {
return inputFilePath.substring(inputFilePath.lastIndexOf(Common.FULL_STOP) + 1);
} public static ImageIcon getImage(Image img, int scaled) {
ImageIcon icon = new ImageIcon(getImages(img, scaled));
return icon;
} public static Image getImages(Image img, int scaled) {
int heigth = 0;
int width = 0; if (scaled < 25) {
scaled = 25;
} String sScaled = String.valueOf(Math.ceil((double) scaled / 25));
int indexX = sScaled.indexOf(".");
scaled = Integer.parseInt(sScaled.substring(0, indexX)); double scaleds = getScaling(img.getWidth(null), img.getHeight(null), scaled); try {
heigth = (int) (img.getHeight(null) * scaleds);
width = (int) (img.getWidth(null) * scaleds);
} catch (Exception e) {
e.printStackTrace();
} return getScaledImage(img, width, heigth);
} public static Image getScaledImage(Image srcImg, int width, int heigth) {
BufferedImage resizedImg = new BufferedImage(width, heigth, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = resizedImg.createGraphics();
g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2.drawImage(srcImg, 0, 0, width, heigth, null);
g2.dispose(); Image image = srcImg.getScaledInstance(srcImg.getWidth(null), srcImg.getHeight(null), Image.SCALE_DEFAULT); return resizedImg;
} /**
* Get the image zoom ratio
* @param sourceWidth
* @param sourceHeight
* @return scaled
*/
public static double getScaling(int sourceWidth, int sourceHeight, int scaled) {
double widthScaling = ((double) snapWidthMax * (double) scaled) / (double) sourceWidth;
double heightScaling = ((double) snapHeightMax * (double) scaled) / (double) sourceHeight; double scaling = (widthScaling < heightScaling) ? widthScaling : heightScaling; return scaling;
}
}
/imageHandler/src/com/b510/image/util/TextUtil.java
/**
*
*/
package com.b510.image.util; import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException; import com.b510.image.common.Common; /**
* @author Hongten
* @created Jul 23, 2014
*/
/**
* @author Hongten
* @created 2014-7-26
*/
public class TextUtil { /**
* Write the string to file.
* @param stringBuffer
*/
public static void write2File(StringBuffer stringBuffer) {
File f = new File(Common.OUTPUT_TXT);
BufferedWriter output = null;
try {
output = new BufferedWriter(new FileWriter(f));
output.write(stringBuffer.toString());
output.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
源码下载：http://files.cnblogs.com/hongten/imageHandler_v1.2.rar
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