blame | history | patch | commit | commitdiff | show whitespace
KKSU
2024-05-30 84599f1fdac0d9723c7f02a2e66b0e909ad911d7 
 src/main/java/cc/mrbird/febs/mall/test/imageTest.java


@@ -1,100 +1,100 @@


package cc.mrbird.febs.mall.test;




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;


import javax.swing.*;


import java.awt.*;


import java.awt.image.BufferedImage;


import java.awt.image.ConvolveOp;


import java.awt.image.Kernel;


import java.awt.image.RenderedImage;


import java.io.File;


import java.io.FileOutputStream;


import java.io.IOException;




public class imageTest {




    public static void main(String[] args) throws IOException {




//        File originalImage = new File("D:\\image\\out.png");


//        try{


//            RenderedImage rendImage =getGray.gray(ImageIO.read(new File("D:\\image\\input.png")));


//            ImageIO.write(rendImage, "png", originalImage);


//        }catch(IOException e){


//            System.out.println(e);


//        }








        File originalImage = new File("D:\\image\\input.png");


        System.out.println("源文件大小" + originalImage.length());


        File resizedImg1 = new File("D:\\image\\out3.png");


        resize(originalImage, resizedImg1, Integer.parseInt(Long.toString(originalImage.length())), 0.1f);


        System.out.println("0.1转换后文件大小" + resizedImg1.length());




    }


//        ## 遍历文件夹下图片批量压缩


//package cc.mrbird.febs.mall.test;


//


//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;


//import javax.swing.*;


//import java.awt.*;


//import java.awt.image.BufferedImage;


//import java.awt.image.ConvolveOp;


//import java.awt.image.Kernel;


//import java.awt.image.RenderedImage;


//import java.io.File;


//import java.io.FileOutputStream;


//import java.io.IOException;


//


//public class imageTest {


//


//    public static void main(String[] args) throws IOException {


//        File folder = new File("C:\\Users\\Win\\Desktop\\faceImages");//文件夹路径


//        File[] listOfFiles = folder.listFiles();


//        for (int i = 0; i < listOfFiles.length; i++) {


//            if (listOfFiles[i].isFile()) {


//                File originalImage = listOfFiles[i];


//


////        File originalImage = new File("D:\\image\\out.png");


////        try{


////            RenderedImage rendImage =getGray.gray(ImageIO.read(new File("D:\\image\\input.png")));


////            ImageIO.write(rendImage, "png", originalImage);


////        }catch(IOException e){


////            System.out.println(e);


////        }


//


//


//


//        File originalImage = new File("D:\\image\\input.png");


//                System.out.println("源文件大小" + originalImage.length());


//                String fileName = originalImage.getName();


//                File resizedImg1 = new File("C:\\Users\\Win\\Desktop\\productImages\\" + fileName);


//                resize(originalImage, resizedImg1, 64, 0.9f);


//                System.out.println(fileName + "0.8转换后文件大小" + resizedImg1.length());


//            } else if (listOfFiles[i].isDirectory()) {


//                System.out.println("Directory " + listOfFiles[i].getName());


//            }


//        }


//


//        File resizedImg1 = new File("D:\\image\\out3.png");


//        resize(originalImage, resizedImg1, Integer.parseInt(Long.toString(originalImage.length())), 0.1f);


//        System.out.println("0.1转换后文件大小" + resizedImg1.length());


//


//    }




    /**


     * 缩放图片(压缩图片质量，改变图片尺寸)


     * 若原图宽度小于新宽度，则宽度不变！


     * @param newWidth 新的宽度


     * @param quality  图片质量参数 0.7f 相当于70%质量


     */


    public static void resize(File originalFile, File resizedFile, int newWidth, float quality) throws IOException {


        if (quality > 1) {


        }


        ImageIcon ii = new ImageIcon(originalFile.getCanonicalPath());


        Image i = ii.getImage();


        Image resizedImage = null;


        int iWidth = i.getWidth(null);


        int iHeight = i.getHeight(null);


        if (iWidth < newWidth) {


            newWidth = iWidth;


        }


        if (iWidth > iHeight) {


            resizedImage = i.getScaledInstance(newWidth, (newWidth * iHeight) / iWidth, Image.SCALE_SMOOTH);


        } else {


            resizedImage = i.getScaledInstance((newWidth * iWidth) / iHeight, newWidth, Image.SCALE_SMOOTH);


        }


        Image temp = new ImageIcon(resizedImage).getImage();


        BufferedImage bufferedImage = new BufferedImage(temp.getWidth(null), temp.getHeight(null), BufferedImage.TYPE_INT_RGB);


        Graphics g = bufferedImage.createGraphics();


        g.setColor(Color.white);


        g.fillRect(0, 0, temp.getWidth(null), temp.getHeight(null));


        g.drawImage(temp, 0, 0, null);


        g.dispose();


        float softenFactor = 0.05f;


        float[] softenArray = {0, softenFactor, 0, softenFactor, 1 - (softenFactor * 4), softenFactor, 0, softenFactor, 0};


        Kernel kernel = new Kernel(3, 3, softenArray);


        ConvolveOp cOp = new ConvolveOp(kernel, ConvolveOp.EDGE_NO_OP, null);


        bufferedImage = cOp.filter(bufferedImage, null);


        FileOutputStream out = new FileOutputStream(resizedFile);


        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);


        JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bufferedImage);


        param.setQuality(quality, true);


        encoder.setJPEGEncodeParam(param);


        encoder.encode(bufferedImage);


    }


}


////        ## 遍历文件夹下图片批量压缩


////    public static void main(String[] args) throws IOException {


////        File folder = new File("C:\\Users\\Win\\Desktop\\faceImages");//文件夹路径


////        File[] listOfFiles = folder.listFiles();


////        for (int i = 0; i < listOfFiles.length; i++) {


////            if (listOfFiles[i].isFile()) {


////                File originalImage = listOfFiles[i];


////                System.out.println("源文件大小" + originalImage.length());


////                String fileName = originalImage.getName();


////                File resizedImg1 = new File("C:\\Users\\Win\\Desktop\\productImages\\" + fileName);


////                resize(originalImage, resizedImg1, 64, 0.9f);


////                System.out.println(fileName + "0.8转换后文件大小" + resizedImg1.length());


////            } else if (listOfFiles[i].isDirectory()) {


////                System.out.println("Directory " + listOfFiles[i].getName());


////            }


////        }


////


////


////    }


//


//    /**


//     * 缩放图片(压缩图片质量，改变图片尺寸)


//     * 若原图宽度小于新宽度，则宽度不变！


//     * @param newWidth 新的宽度


//     * @param quality  图片质量参数 0.7f 相当于70%质量


//     */


//    public static void resize(File originalFile, File resizedFile, int newWidth, float quality) throws IOException {


//        if (quality > 1) {


//        }


//        ImageIcon ii = new ImageIcon(originalFile.getCanonicalPath());


//        Image i = ii.getImage();


//        Image resizedImage = null;


//        int iWidth = i.getWidth(null);


//        int iHeight = i.getHeight(null);


//        if (iWidth < newWidth) {


//            newWidth = iWidth;


//        }


//        if (iWidth > iHeight) {


//            resizedImage = i.getScaledInstance(newWidth, (newWidth * iHeight) / iWidth, Image.SCALE_SMOOTH);


//        } else {


//            resizedImage = i.getScaledInstance((newWidth * iWidth) / iHeight, newWidth, Image.SCALE_SMOOTH);


//        }


//        Image temp = new ImageIcon(resizedImage).getImage();


//        BufferedImage bufferedImage = new BufferedImage(temp.getWidth(null), temp.getHeight(null), BufferedImage.TYPE_INT_RGB);


//        Graphics g = bufferedImage.createGraphics();


//        g.setColor(Color.white);


//        g.fillRect(0, 0, temp.getWidth(null), temp.getHeight(null));


//        g.drawImage(temp, 0, 0, null);


//        g.dispose();


//        float softenFactor = 0.05f;


//        float[] softenArray = {0, softenFactor, 0, softenFactor, 1 - (softenFactor * 4), softenFactor, 0, softenFactor, 0};


//        Kernel kernel = new Kernel(3, 3, softenArray);


//        ConvolveOp cOp = new ConvolveOp(kernel, ConvolveOp.EDGE_NO_OP, null);


//        bufferedImage = cOp.filter(bufferedImage, null);


//        FileOutputStream out = new FileOutputStream(resizedFile);


//        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);


//        JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bufferedImage);


//        param.setQuality(quality, true);


//        encoder.setJPEGEncodeParam(param);


//        encoder.encode(bufferedImage);


//    }


//}