(3) SetInputImage(String file)

public void setInputImage(String file){  file name is set as a parameter 

try {

inputSourceImage = ImageIO.read(new File(file)); Tries to read image

}

catch (Exception e) {

e.printStackTrace();

}

wpixel = inputSourceImage.getWidth(null); //num of pixels  

sets pixel width to width of image

hpixel = inputSourceImage.getHeight(null); //num of pixels

sets pixel height to hight of image

screenWidth = wpixel*mag;

screenHeight = (hpixel*mag + buttonHeight + titleHeight);

setSize(screenWidth*2+space, screenHeight+100);

graphStartX = screenWidth + space; //maybe *mag or (screenWidth+space);

i=0;

edgecounter =0;

totaldata = new int[(wpixel*hpixel)*4]; set length total data

edgepoints = new int[(wpixel*hpixel)*4]; set length edge points

processedImage = pixelArray(); processedImage[][] = pixelArray()

             ~~~~~~~~~~~~~~ PixelArray() <-- CLICK! ~~~~~~~~~~~~~~~

FindEdge(processedImage);

            ~~~~~~~~~~~~~~ FindEdge() <-- CLICK! ~~~~~~~~~~~~~~

//printPoints(edgepoints); THIS IS CALLED IN FINDEDGE()

//printDerivative(totaldata); THIS IS CALLED IN FINDEDGE()

//System.out.println("totaldatalength" + totaldata.length);

//System.out.println("w: " + wpixel);

//System.out.println("h: " + hpixel);

efficiency = findEfficiency(totaldata);

 findEfficiency()

System.out.println("E:" + efficiency + "%");

}