import ImageWriter

pic = ImageWriter.loadPicture("asmaa.bmp")

ImageWriter.showPicture(pic)

w = ImageWriter.getWidth(pic)
h = ImageWriter.getHeight(pic)

for y in range(h):
    for x in range(w-1):
        col = ImageWriter.getColor(pic,x,y)
        colnext = ImageWriter.getColor(pic,x+1,y)
        avgcolor = (col[0]+col[1]+col[2])//3
        avgcolorp = (colnext[0]+colnext[1]+colnext[2])//3
        if(abs(avgcolor - avgcolorp) > 10):
            ImageWriter.setColor(pic,x,y,[0,0,0])
        else:
            ImageWriter.setColor(pic,x,y,[255,255,255])
    if y % 5 == 0:
        ImageWriter.updatePicture(pic)