PCX image decoder / convertor in JAVA

This is a simple decoder / converter to jpg / png in Java for PCX image format.
It supports the Monochrome & 24 bit color images in PCX format. I will add support
for other formats as & when I come across them.

===================================================


/**

* @author Koustubha Kale

* koustubha_kale@yahoo.com

* I have made liberal use of the code I have found on the net in this,

* although I did not find one that actually worked. Whereas this does. You can
use this

* in the same manner if you find it usefull.

*/

import com.sun.jimi.core.*;

import com.sun.jimi.core.raster.*;

import com.sun.jimi.core.JimiException;

import javax.swing.*;

import javax.swing.event.*;

import java.awt.*;

import java.awt.color.ICC_ColorSpace;

import java.awt.color.ICC_ProfileRGB;

import java.awt.event.*;

import java.awt.image.*;

import java.beans.PropertyVetoException;

import java.io.*;

import java.util.*;

import javax.imageio.*;

import java.util.Arrays;



public class GetFormats {

public static void main(String args[]) {

//String readFormats[] = Jimi.getDecoderTypes();

//String writeFormats[] = Jimi.getEncoderTypes();

//System.out.println("Decoders: " + Arrays.asList(readFormats));

//System.out.println("Encoders: " + Arrays.asList(writeFormats));



try {

//Image im = Jimi.getImage("ims.pcx", Jimi.SYNCHRONOUS);

//System.out.println("Image Height="+im.getHeight()+", Image Width="+im.getWidth());


//System.out.println("Is err? "+im.isError());

//Jimi.putImage("image/jpg", im, "ims-1.jpg");

//System.out.println("Wrote Image.");

//loadImage("ASCPRIN.pcx");

loadImage("DR.pcx");

} catch (Exception e) {

System.out.println("Err :" + e);

e.printStackTrace();

}



}



public static void loadImage(java.lang.String imageFilename)

throws IOException, Exception {

// read the image head

byte[] head = new byte[128];

int bitPlane = 0, type = 0;

long fileLength = new File(imageFilename).length();

BufferedInputStream openFile =

new BufferedInputStream(new FileInputStream(imageFilename));

long readLen = openFile.read(head, 0, 128);



if ((head[3] & 0xff) == 1 && (head[65] & 0xff) == 1) {

type = 0;

bitPlane = 1;

} else if (head[3] == 1 && head[65] == 2) {

type = 1;

bitPlane = 2;

} else if (head[3] == 2 && head[65] == 1) {

type = 2;

bitPlane = 1;

} else if (head[3] == 1 && head[65] == 3) {

type = 3;

bitPlane = 3;

} else if (head[3] == 1 && head[65] == 4) {

type = 4;

bitPlane = 4;

} else if (head[3] == 4 && head[65] == 1) {

type = 5;

bitPlane = 1;

} else if (head[3] == 8 && head[65] == 1) {

type = 6;

bitPlane = 1;

} else if (head[3] == 8 && head[65] == 3) {

type = 7;

bitPlane = 3;

}

System.out.print("nPlanes=" + (head[65] & 0xff));

System.out.print("Image type =" + type);

int width =

((((int) head[9] & 0x0ff) << 8) | ((int) head[8] & 0xff))

- ((((int) head[5] & 0x0ff) << 8) | ((int) head[4] & 0xff))

+ 1;



int height =

((((int) head[11] & 0x0ff) << 8) | ((int) head[10] & 0xff))

- ((((int) head[7] & 0x0ff) << 8) | ((int) head[6] & 0xff))

+ 1;

System.out.print("; Width,height=" + width + "," + height);

int version = head[1];

System.out.println("; version=" + version);

int color = 0;

if (version == 2 || version > 3)

color = 1;

else

color = 0;



int bytesPerLine = //(int) head[67] & 0x0ff;

((((int) head[67] & 0x0ff) << 8) | ((int) head[66] & 0xff));

System.out.println("bytesPerLine=" + bytesPerLine);



if (type == 0) {

if ((bytesPerLine*8)>width)

width=bytesPerLine*8;

BufferedImage innerImage =

new BufferedImage(

width,

height,

BufferedImage.TYPE_BYTE_BINARY);

java.awt.image.WritableRaster raster = innerImage.getRaster();



int[] unComData = new int[width * height];

int inc = 0;

byte[] tempAry = new byte[1];



while ((readLen = openFile.read(tempAry)) != -1) {



if (((int) tempAry[0] & 0xff) < 192) {

//for (int j = 0; j < 8; j++)

unComData[inc] = (int) tempAry[0] & 0xff;

//inc += 8;

//System.out.println("Data value="+((int) tempAry[0] & 0xff));

inc++;

} else {

int count = ((int) tempAry[0]) & 0x3f;

readLen = openFile.read(tempAry);

//System.out.println("multiple Data value="+((int) tempAry[0] & 0xff));

//System.out.println("Count="+count);

for (int j = 0; j < count; j++)

unComData[inc + j] = (int) tempAry[0] & 0xff;

inc += count;

}



}





System.out.println(

"Palett?=" + (unComData[unComData.length - 770] & 0xff));

System.out.println("inc=" + inc);

System.out.println("unComData length=" +unComData.length);

int[] data2 = new int[width * height];

int k = 0;





for (int j = 0; j < inc; j++) {

int temp = unComData[j];



for (int i = 1; i < 255; i *= 2, k++) {



//System.out.println("i="+i);

if ((temp & 0x80) == 0x80)

data2[k] |= 0x01;

else

data2[k] = 0x00;

temp <<= 1;

}

}



System.out.println("data2 length=" + k);

try {

raster.setPixels(0, 0, width, height, data2);



innerImage =

new BufferedImage(

innerImage.getColorModel(),

raster,

false,

null);

/*JFrame frame=new JFrame();

JLabel l=new JLabel();

l.setIcon(new ImageIcon(innerImage));

frame.getContentPane().add(l);

frame.pack();

frame.show();

*/



Jimi.putImage("image/jpg", innerImage, "ASCPRIN.jpg");

Jimi.putImage("image/png", innerImage, "ASCPRIN.png");

ImageIO.write(innerImage, "jpg", new File("ASCPRIN11.jpg"));



} catch (ArrayIndexOutOfBoundsException e) {

System.out.println("set image error!");

e.printStackTrace();

}

}

if (type == 7) {

BufferedImage innerImage =

new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

java.awt.image.WritableRaster raster = innerImage.getRaster();



int[] unComData = new int[width * height * 3];

int inc = 0;

byte[] tempAry = new byte[1];



while ((readLen = openFile.read(tempAry)) != -1) {



if (((int) tempAry[0] & 0xff) < 192) {

unComData[inc] = (int) tempAry[0] & 0xff;

inc++;

} else {

int count = ((int) tempAry[0]) & 0x3f;

readLen = openFile.read(tempAry);



//System.out.println("Count="+count);

for (int j = 0; j < count; j++)

unComData[inc + j] = (int) tempAry[0] & 0xff;

inc += count;

}



}



int[] rAry = new int[bytesPerLine];

int[] gAry = new int[bytesPerLine];

int[] bAry = new int[bytesPerLine];

int len = unComData.length;

for (int i = 0; i < len; i += bytesPerLine * 3) {

for (int j = 0; j < bytesPerLine; j++) {

rAry[j] = unComData[i + j];

// System.out.println(i+bytesPerLine+j);

gAry[j] = unComData[i + bytesPerLine + j];

bAry[j] = unComData[i + 2 * bytesPerLine + j];

}



for (int j = 0; j < bytesPerLine; j++) {



//for (int k = 0; k < 3; k++) {

unComData[i + (j * 3)] = rAry[j];

unComData[i + (j * 3) + 1] = gAry[j];

unComData[i + (j * 3) + 2] = bAry[j];



//}

}

}

System.out.println("unComData length=" + unComData.length);

System.out.println("inc=" + inc);



try {

raster.setPixels(0, 0, width, height, unComData);

//ColorModel cm=new DirectColorModel(java.awt.color.ColorSpace.getInstance(java.awt.color.ColorSpace.CS_sRGB),false,false,Transparency.TRANSLUCENT,DataBuffer.TYPE_BYTE);


innerImage =

new BufferedImage(

innerImage.getColorModel(),

raster,

false,

null);

Jimi.putImage("image/jpg", innerImage, "joshi-2.jpg");

Jimi.putImage("image/png", innerImage, "joshi-2.png");

ImageIO.write(innerImage, "jpg", new File("joshi.jpg"));

} catch (ArrayIndexOutOfBoundsException e) {

System.out.println("set image error!");

e.printStackTrace();

}





}



//

openFile.close();

}



}
//end of file..
=========================================================


Enjoy..
Regards
kk