How to do a magic wand tool like photoshop with java?

Question

in a JPanel,a bufferedImage with a great many colors show in it.
now,i want to select a region with same color use a magic wand tool ,just like photoshop,how to do it?
Thanks.

Answer 1

maybe it is not a feasible way!
i have loading a image size of 150*50,
when i use getPixelColor() method as follow,it used almost 40 seconds to end it.it get correct info of every pixels,but too slow. say nothing of analysis the pixels and catch a selection.
//*******the getPixelColor() method**********//
public String getPixelColor(BufferedImage bimg){
String info=new String();
for(int i=0;i<bimg.getWidth();i++)
for(int j=0;j<bimg.getHeight();j++){
int rgb=bimg.getRGB(i,j);
int red=(rgb>>24)&0xff;
int green=(rgb>>16)&0xff;
int blue=(rgb>>8)&0xff;
info=info+"R:"+red+" G:"+green+" B:"+blue+" X:"+i+" Y:"+j+"\n";
return info;
//****end *****//
then invoke method:
System.out.println(getPixelColor(myimg));