from PIL import Image
def Julia(c,taille):
    a=c.real
    b=c.imag
    xmin = -1.25
    xmax = 1.25
    ymin = -1.25
    ymax = 1.25
    iterationmax = 200
    im = Image.new("RGB",(taille,taille),(255,255,255))
    pixels = im.load()
    for line in range(taille):
        for col in range(taille):
            i = 1
            x = xmin+col*(xmax-xmin)/taille
            y = ymax-line*(ymax-ymin)/taille
            while i<=iterationmax and (x**2+y**2)<=4:
                stock = x
                x = x**2-y**2+a
                y = 2*stock*y+b
                i += 1
            if i>iterationmax and (x**2+y**2)<=4:
                pixels[col,line] = (0,0,0)
            else:
                pixels[col,line] = ((4*i)%256,2*i,(6*i)%256)
    im.save("julia1.png")
    im.show()