gistfile1.txt

	private Image scaleImage(Image sourceImage, int newImageWidth, int newImageHeight){

		// width of original source image
		int srcWidth = sourceImage.getWidth();
		// height of original source image
		int srcHeight = sourceImage.getHeight();

		// An array for RGB, with the size of original image)  
		int rgbSource[] = new int[srcWidth*srcHeight];  
		// An array for RGB, with the size of scaled image)  
		int rgb2Scaled[] = new int[newImageWidth*newImageHeight];  

		// Get the RGB array of source image
		sourceImage.getRGB(rgbSource,0,srcWidth,0,0,srcWidth,srcHeight);  

		// calculations and bit shift operations to optimize the for loop
		int tempScaleRatioWidth = ((srcWidth<<16) / newImageWidth);
		int tempScaleRatioHeight = ((srcHeight<<16) / newImageHeight);

		int i = 0;
		
		for (int y = 0; y < newImageHeight; y++) {  
			for (int x = 0; x < newImageWidth; x++) {  
				rgb2Scaled[i++]=rgbSource[(srcWidth*((y * tempScaleRatioHeight)>>16))+((x * tempScaleRatioWidth)>>16)];
			}  
		}  

		//Create an RGB image from rgbScaled array
		return Image.createRGBImage(rgb2Scaled,newImageWidth,newImageHeight,true); 
	}