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Swing / AWT / SWT
How to create png image with the pixels array?
xie yufei
Greenhorn
Posts: 19
posted 17 years ago
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I attempt to use MemoryImageSource but I don't know how to create the image and how to reserve the image?
import java.awt.*; import java.awt.image.*; import java.awt.event.*; import java.io.*; import javax.imageio.*; public class Test { public static void main(String[] args) { Color[]colors = { Color.red, Color.yellow, Color.blue, Color.cyan, Color.white, Color.green, Color.magenta, Color.orange}; byte[] reds = { (byte)colors[0].getRed(),(byte)colors[1].getRed(), (byte)colors[2].getRed(),(byte)colors[3].getRed(), (byte)colors[4].getRed(),(byte)colors[5].getRed(), (byte)colors[6].getRed(),(byte)colors[7].getRed() }; byte[] greens = { (byte)colors[0].getGreen(),(byte)colors[1].getGreen(), (byte)colors[2].getGreen(),(byte)colors[3].getGreen(), (byte)colors[4].getGreen(),(byte)colors[5].getGreen(), (byte)colors[6].getGreen(),(byte)colors[7].getGreen() }; byte[] blues = { (byte)colors[0].getBlue(),(byte)colors[1].getBlue(), (byte)colors[2].getBlue(),(byte)colors[3].getBlue(), (byte)colors[4].getBlue(),(byte)colors[5].getBlue(), (byte)colors[6].getBlue(),(byte)colors[7].getBlue()}; IndexColorModel icm = new IndexColorModel( 8, // bits per pixel 8, // size of arrays that follow reds, // red components greens, // green components blues);// blue components Image image; int[] imageBits = new int[] { 0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7, 0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7, 0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7, 0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7, 0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7, 0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7, 0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7, 0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7, 0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7, 0,0,0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7}; MemoryImageSource mis = new MemoryImageSource( 24,10, // width, height of image icm,// ColorModel imageBits, // bits of image 0, // offset 24);// scansize image = createImage(mis);//How to create the image ???????????? try { FileOutputStream fos = new FileOutputStream("E:\\chart3.png"); ImageIO.write(image, "png", fos);// How to reserve the image??????? fos.close(); } catch(Exception e) { System.out.println(e); } } }
Ulf Dittmer
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Posts: 43081
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posted 17 years ago
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Moved to the AWT/Swing/GUI forum.
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