methods - replacing green pixels in a picture using java -


i have picture , trying remove green pixels. how do using simple java , 2d array?

so far, code looks this:

public void removegreen() {        picture pic = new picture("img_7320.jpg");       pixel pixel = null;       (int row = 0; row < pic.getheight(); row++) {           (int col = 0; col < pic.getwidth(); col++) {               pixel = getpixel(row,col);               pixel.getcolor();               if(pixel.getred() < 40 & pixel.getblue() < 160 & pixel.getgreen() > 220) {                   color white = new color(255,255,255);                   pixel.setcolor(white);               }           }       }   }

(right trying replacing green pixel white pixel because i'm not sure how remove pixel altogether.)

and code in main method using test removegreen() method,looks this:

//method test removegreen    public static void testremovegreen() {        picture me = new picture("img_7320.jpg");       me.explore();       me.removegreen();       me.explore();   }

so, code looks this:

public void removegreen(picture pic) {

for (int row = 0; row < pic.getheight(); row++) {

  (int col = 0; col < pic.getwidth(); col++) {       pixel pixel = pic.getpixel(row,col);        if((pixel.getred() < 40) && (pixel.getblue() < 160) && (pixel.getgreen() > 220)) {           color white = new color(255,255,255);           pixel.setcolor(white);       }   }

} }

and main method still same. still not understand why method not working properly.

the following makes clear passed pic parameter altered.

  public static void removegreen(picture pic) {       (int row = 0; row < pic.getheight(); row++) {           (int col = 0; col < pic.getwidth(); col++) {               pixel pixel = pic.getpixel(row,col);               if (pixel.getred() < 40 && pixel.getblue() < 160                       && pixel.getgreen() > 220) {                   pixel.setcolor(color.white);               }           }       }   }

the && short-cut and: x && y() not call y x false.

mind pic.getpixel. if removegreen intended method of picture, remove parameter , static keyword, , pic..

public static void testremovegreen() {     picture me = new picture("img_7320.jpg");     me.explore();     removegreen(me);     me.explore(); }

as .jpg, jpeg, format not have transparency, colour white needed shown "background."


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