Tag Archive for bit

AS2 BitmapData loadBitmap ライブラリからビットマップをダイナミックに配置

/* ここから */
/*
ライブラリにリンケージPenというビットマップデータを用意
*/
import flash.display.BitmapData;
var myBitmapData:BitmapData = BitmapData.loadBitmap("Pen");
var _mc:MovieClip = this.createEmptyMovieClip("mc", this.getNextHighestDepth());
_mc.attachBitmap(myBitmapData, _mc.getNextHighestDepth());

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AS2 BitmapData ディゾルブによりホワイトアウト

/* ここから */
/*
ディゾルブによりホワイトアウトする
<a href="http://www.fumiononaka.com/Sample/Flash8/PixelDissolve.html" >http://www.fumiononaka.com/Sample/Flash8/PixelDissolve.html</a>
リンケージPenのビットマップデータをロード
*/
import flash.display.BitmapData;
import flash.geom.Point;
var myBitmapData:BitmapData = BitmapData.loadBitmap("Pen");
var _mc:MovieClip = this.createEmptyMovieClip("mc", this.getNextHighestDepth());
_mc.attachBitmap(myBitmapData, _mc.getNextHighestDepth());
var nRandom:Number;
_mc.onPress = function() {
nRandom = Math.floor(Math.random()*10);
this.onEnterFrame = xDissolve;
};
var nTotalDissolved:Number = 0;
var nTotalPixels:Number = myBitmapData.width*myBitmapData.height;
var nDissolving:Number = 30;
var zeroPoint:Point = new Point(0, 0);
function xDissolve() {
nRandom = myBitmapData.pixelDissolve(myBitmapData, myBitmapData.rectangle, zeroPoint, nRandom, nDissolving, 0x00FFFFFF);
nTotalDissolved += nDissolving;
if (nTotalDissolved>=nTotalPixels) {
delete this.onEnterFrame;
}
nDissolving = Math.floor(nDissolving*1.1);
}

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Java – Color2Gray

public BufferedImage toGray(BufferedImage bi)
{
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
ColorConvertOp op = new ColorConvertOp(cs, null);

return op.filter(bi, null);
}

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Java – ImageFilter Simple

public BufferedImage Embrossing(BufferedImage bi)
{
BufferedImage buff = new BufferedImage(bi.getWidth(), bi.getHeight(), bi.getType());

Kernel kernel = new Kernel(3, 3, new float[] {
-2f, 0f, 0f,
0f, 1f, 0f,
0f, 0f, 2f
});

ConvolveOp op = new ConvolveOp(kernel);
op.filter(bi, buff);

return buff;
}

public BufferedImage Blurring(BufferedImage bi)
{
BufferedImage buff = new BufferedImage(bi.getWidth(), bi.getHeight(), bi.getType());

Kernel kernel = new Kernel(3, 3, new float[] {
1f/9f, 1f/9f, 1f/9f,
1f/9f, 1f/9f, 1f/9f,
1f/9f, 1f/9f, 1f/9f
});

ConvolveOp op = new ConvolveOp(kernel);
op.filter(bi, buff);

return buff;
}

public BufferedImage Sharpening(BufferedImage bi)
{
BufferedImage buff = new BufferedImage(bi.getWidth(), bi.getHeight(), bi.getType());

Kernel kernel = new Kernel(3, 3, new float[] {
-1f, -1f, -1f,
-1f,  9f, -1f,
-1f, -1f, -1f
});

ConvolveOp op = new ConvolveOp(kernel);
op.filter(bi, buff);

return buff;
}

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Java – ScreenShot

import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;

import javax.imageio.ImageIO;

public class screen2image
{
public static void main(String[] args) throws Exception
{
Robot robot = new Robot();

BufferedImage screenShot = robot.createScreenCapture(new Rectangle(Toolkit.getDefaultToolkit().getScreenSize()));
ImageIO.write(screenShot, "JPG", new File("screenShot.jpg"));
}
}

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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;
}

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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;
}

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Java – Dilate3

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;
}

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Matlab – showBitPlanes

% Ritorna i Bit Plabes dell'immagine a toni di grigio

function showBitPlanes(img)

imgGray = double( rgb2gray(img) );
titleString = 'bit planes ';

% MSB ... LSB
k = 128;

for b=1:8

subplot(2, 4, b);
imshow( (bitand(imgGray, k) / k) * 255 ); % Fa un and dei bit
title([titleString int2str(b-1)]);
k = k/2; % Shifta di 2 i bit

end;

return;

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Java – showBitPlanes

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;
}

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