How save Image BMP Binary type?

[shakall]

Hello, I think a picture and saved in a BMP file with 24bit color, but it got the file size of 2Mb, I would save this file in binary format, because the color is only black and white.
This is possible?

I managed to do using only AWT, but as I use the IBM J9 must do the same but in SWT.

Could someone help me?

Thank you!

My Codes.

AWT

BufferedImage image= new BufferedImage(x, y, BufferedImage.TYPE_BYTE_BINARY);   
            Graphics g = image.getGraphics();   
            g.setColor(Color.white);   
            g.fillRect(0, 0, x, y);   
            g.setColor(Color.black);   
            g.drawString("TESTE DE IMPRESSAO", 20,20);   
            ImageIO.write(image, "bmp", new File(file2));

SWT

            Image imagem = new Image(display, x, y);
            GC g = new GC(imagem);
            g.setBackground(display.getSystemColor(SWT.COLOR_WHITE));
            g.setForeground(display.getSystemColor(SWT.COLOR_BLACK));
            g.setFont(new Font(Display.getDefault(), "DIALOG", font, SWT.NORMAL));
            g.drawString("teste de impressap", 30, 30);
            g.dispose();
            ImageData data=imagem.getImageData();
            ImageLoader loader = new ImageLoader();
            loader.data = new ImageData[]{imagem.getImageData()};
            loader.save(file, SWT.IMAGE_BMP);
            imagem.dispose();
            display.dispose();

[AndreB]

Hi,

you should manipulate the palette.
Try this one:
Note: that the platette data have to be in that order to achieve the white background. Play a little with the order and see what happens.

public static void main(String[] args) {
		PaletteData palette = new PaletteData(new RGB[] {
        		 new RGB(255,255,255), new RGB(0,0,0)
        });
	ImageData id = new ImageData(200, 200, 1, palette);

	Image imagem = new Image(Display.getCurrent(), id);
        GC g = new GC(imagem);
        g.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
        g.setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_BLACK));
        g.setFont(new Font(Display.getDefault(), "DIALOG", 8, SWT.NORMAL));
        g.drawString("teste de impressap", 30, 30);
        g.dispose();
        ImageData data=imagem.getImageData();
        ImageLoader loader = new ImageLoader();
        loader.data = new ImageData[]{data};
        loader.save("myBMP.bmp", SWT.IMAGE_BMP);
        imagem.dispose();
        Display.getCurrent().dispose();
	}

further look into eclipse.org/articles/Article-SWT-images/graphics-resources.html
there is a chapter about saving images

[shakall]

Hi, my code is:

 Display display = new Display();
            int x = 384, y = 100;
            org.eclipse.swt.graphics.Color white = display.getSystemColor(SWT.COLOR_WHITE);
            org.eclipse.swt.graphics.Color black = display.getSystemColor(SWT.COLOR_BLACK);
            // Create a source ImageData of depth 1 (monochrome)
            PaletteData palette = new PaletteData(new RGB[]{white.getRGB(), black.getRGB(),});
            ImageData sourceData = new ImageData(x, y, 1, palette);
            Image im = new Image(display, sourceData);
            GC gc = new GC(im);
            Font normal = new Font(Display.getDefault(), "DIALOG", font, SWT.NORMAL);
            Font bold = new Font(Display.getDefault(), "DIALOG", font, SWT.BOLD);
            gc.setFont(normal);

[AndreB]

So it worked i suppose ;-)