image code

J2ME - Rescale Image

// description of your code here

private Image rescaleImage(Image image, int width, int height)
	{
		int sourceWidth = image.getWidth();
		int sourceHeight = image.getHeight();
	
		Image newImage = Image.createImage(width, height);
		Graphics g = newImage.getGraphics();
		
		for(int y=0; y<height; y++)
		{
			for(int x=0; x<width; x++)
			{
				g.setClip(x, y, 1, 1);
				int dx = x * sourceWidth / width;
				int dy = y * sourceHeight / height;
				g.drawImage(image, x-dx, y-dy, Graphics.LEFT | Graphics.TOP);
			}
		}
		
		return Image.createImage(newImage);
	}

to java image size scale j2me by whitetiger on Jan 08, 2007

Python - Example Simple ImageView

import pygtk; pygtk.require('2.0')
import gtk

class Image_Example(object):

	def pressButton(self, widget, data=None):
		print "Pressed"

	def delete_event(self, widget, event, data=None):
		print "delete event occured"

		return False

	def destroy(self, widget, data=None):
		gtk.main_quit()

	def __init__(self):
		self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
		self.window.connect("delete_event", self.delete_event)
		self.window.connect("destroy", self.destroy)
		self.window.set_border_width(10)

		self.button = gtk.Button()
		self.button.connect("clicked", self.pressButton, None)
		self.button.connect_object("clicked", gtk.Widget.destroy, self.window)

		self.image = gtk.Image()
		self.image.set_from_file("/tmp/f27.jpg")
		self.image.show()

		self.button.add(self.image)
		self.window.add(self.button)
		self.button.show()
		self.window.show()

	def main(self):
		gtk.main()


if __name__ == '__main__':

	Image_Example().main()

to python image gtk event view pygtk by whitetiger on Dec 08, 2006

Java - Erode

// JAI Filter erode

public RenderedImage erode(BufferedImage img)
	{
		KernelJAI kernel = new KernelJAI(7, 7, new float[]{
															0, 0, 0, 0, 0, 0, 0,
															0, 1, 1, 1, 1, 1, 0,
															0, 1, 1, 1, 1, 1, 0,
															0, 1, 1, 1, 1, 1, 0,
															0, 1, 1, 1, 1, 1, 0,
															0, 1, 1, 1, 1, 1, 0,
															0, 0, 0, 0, 0, 0, 0
															});
		ParameterBlock pb = new ParameterBlock();
		pb.addSource(img);
		pb.add(kernel);
		
		return JAI.create("erode", pb);
	}

to java images image RGB filter jpg j2me gray JAI by whitetiger on Nov 05, 2006

Java - subTraction

// Use JAI filter

public RenderedImage subTraction(BufferedImage img1, BufferedImage img2)
	{
		ParameterBlock pb = new ParameterBlock();
		pb.addSource(img1);
		pb.addSource(img2);
		
		return JAI.create("subtract", pb);
	}

to java images image RGB filter jpg j2me gray JAI by whitetiger on Nov 05, 2006

Java - showBitPlanes

// the input it must be a b/w image

public BufferedImage showBitPlanes(BufferedImage bi, int lv)
	{
		int level = 0;
		
		switch(level)
		{
			case 0:
				level = 128;
				break;
			case 1:
				level = 64;
				break;
			case 2:
				level = 32;
				break;
			case 3:
				level = 16;
				break;
			case 4:
				level = 8;
				break;
			case 5:
				level = 4;
				break;
			case 6:
				level = 2;
				break;
			case 7:
				level = 1;
				break;
			default:
					return null;
		}
		
		int width = bi.getWidth();
		int height = bi.getHeight();
		
		BufferedImage img = new BufferedImage(width, height, bi.getType());
		
		for(int x=0; x<width; x++)
			for(int y=0; y<height; y++)
				img.setRGB(x, y, ((bi.getRGB(x, y) & level)/level)*255);
		
		return img;
	}

to java images image RGB filter jpg j2me bit gray planes by whitetiger on Nov 04, 2006

// pixel before the filter
// |--|--|--|
// | | | |
// |--|--|--|
// | | *| |
// |--|--|--|
// | | | |
// |--|--|--|

// pixel after the filter
// |--|--|--|
// | *| *| *|
// |--|--|--|
// | *| *| *|
// |--|--|--|
// | *| *| *|
// |--|--|--|

public BufferedImage dilate3(BufferedImage bi)
	{
		BufferedImage buff = new BufferedImage(bi.getWidth(), bi.getHeight(), bi.getType());
		
		Kernel kernel = new Kernel(3, 3, new float[] {
														1f, 1f, 1f, 
														1f, 1f, 1f, 
														1f, 1f, 1f
													 });
		
		ConvolveOp op = new ConvolveOp(kernel);
		op.filter(bi, buff);
		
		return buff;
	}

to java images image RGB filter jpg j2me gray dilate by whitetiger on Nov 04, 2006

Java - EdgeW / EdgeH

public BufferedImage EdgeW(BufferedImage bi)
	{
		BufferedImage buff = new BufferedImage(bi.getWidth(), bi.getHeight(), bi.getType());
		
		Kernel kernel = new Kernel(3, 3, new float[] {
														-1f, 0f, 1f, 
														-2f, 0f, 2f, 
														-1f, 0f, 1f
													 });
		
		ConvolveOp op = new ConvolveOp(kernel);
		op.filter(bi, buff);
		
		return buff;
	}

	public BufferedImage EdgeH(BufferedImage bi)
	{
		BufferedImage buff = new BufferedImage(bi.getWidth(), bi.getHeight(), bi.getType());
		
		Kernel kernel = new Kernel(3, 3, new float[] {
														-1f, -2f, -1f, 
														 0f,  0f,  0f, 
														 1f,  2f,   1f
													 });
		
		ConvolveOp op = new ConvolveOp(kernel);
		op.filter(bi, buff);
		
		return buff;
	}

to java images image RGB filter jpg j2me gray by whitetiger on Nov 03, 2006

HTML - AddIcon

<head>
    <link rel="shortcut icon" href="img.ico" />
</head>

to html image xml web http icon by whitetiger on Nov 03, 2006

Java - Brightness

public BufferedImage brightness(BufferedImage bi, float value)
	{
		BufferedImage buff = new BufferedImage(bi.getWidth(), bi.getHeight(), bi.getType());
		
		Kernel kernel = new Kernel(1, 1, new float[] {value});
		
		ConvolveOp op = new ConvolveOp(kernel);
		op.filter(bi, buff);
		
		return buff;
	}

to java images image RGB converter filter jpg j2me gray by whitetiger on Nov 03, 2006

Matlab - DoubleFlip Image

// Flip Width & Height

function flipIMG=DoubleFlip(img)

    tic

    flipIMG = img([1:end/2, end/2:-1:1], [1:end/2, end/2:-1:1], :);

    toc

to image filter matlab flip width height by whitetiger on Nov 01, 2006

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