Java Image Load loadImage(String filePath, int imageSize)

Description

load Image

License

Apache License

Declaration

public static Image loadImage(String filePath, int imageSize) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.awt.Image;

import java.awt.image.BufferedImage;

import java.io.BufferedInputStream;

import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

import javax.swing.ImageIcon;

public class Main {
    public static byte[] loadImage(String imgPath, Class caller) {
        int MAX_IMAGE_SIZE = 2400; // Change this to the size of
        // your biggest image, in bytes.
        byte buf[] = null;
        int count = 0;
        System.out.println("Load Image Stream: " + imgPath);
        BufferedInputStream imgStream = null;
        imgStream = new BufferedInputStream(caller.getResourceAsStream(imgPath));
        if (imgStream == null) {
            System.err.println("Couldn't find file: " + imgPath);
            return null;
        }//ww  w .j a  v a 2  s.  c  o m

        // Creating the Image Icon from the stream
        try {
            System.out.println("Image Stream is Not Null: " + imgStream);
            System.out.println("Image Stream 4: " + imgPath + " is: " + imgStream.available());
            buf = new byte[imgStream.available()];
            count = imgStream.read(buf, 0, buf.length);
            System.out.println("Buffered Size: " + buf.length + " count: " + count);
            imgStream.close();
        } catch (IOException ioe) {
            System.err.println("Couldn't read stream from file: " + imgPath);
            return null;
        } catch (Throwable th) {
            th.printStackTrace();
            System.out.println("Cought Exception while reading stream");
            return null;
        }
        if (count <= 0) {
            System.err.println("Empty file: " + imgPath);
            return null;
        }
        return buf;
    }

    public static Image loadImage(byte[] imgStr, int imageSize) {
        ImageIcon imgIcon = new ImageIcon(imgStr);
        if (imgIcon == null)
            return null;
        return getScaledImage(imgIcon.getImage(), imageSize);
    }

    public static Image loadImage(String filePath, int imageSize) {
        ImageIcon imgIcon = new ImageIcon(filePath);
        if (imgIcon == null)
            return null;
        return getScaledImage(imgIcon.getImage(), imageSize);
    }

    public static BufferedImage LoadImage(String filename) {
        return LoadImage(new File(filename));
    }

    public static BufferedImage LoadImage(File imgFile) {
        BufferedImage bimg = null;
        try {
            System.out.println("Image File Size: " + imgFile.length());
            bimg = ImageIO.read(imgFile);
        } catch (Exception e) {
            System.out.println("Exception at LoadImage");
            e.printStackTrace();
        }
        return bimg;
    }

    public static Image getScaledImage(Image image, int imageSize) {
        if (imageSize == -1 || image.getWidth(null) <= imageSize)
            return image;
        // Reseampling the Image to create Thumbview. The getScaledInstance
        // method
        // maintains the Aspect Ratio.
        image = image.getScaledInstance(imageSize, -1, Image.SCALE_DEFAULT);
        return image;
    }
}

Related

1. loadImage(File original)
2. loadImage(final String src)
3. loadImage(InputStream s)
4. loadImage(Object parent, String pathToImage)
5. loadImage(String filename)
6. loadImage(URL url)
7. readImage(InputStream inp)
8. readImageToLabel(String netUrl)