gui_magic_wand.py

import numpy as np
import matplotlib.pyplot as plt
im = plt.imread('cells.png')
fig = plt.figure()
ax = fig.add_subplot(111)
# ax.add_image(im)
plt.imshow(im)
coords = []
import cell_magic_wand

def onclick(event):
    global ix, iy
    ix, iy = event.xdata, event.ydata
    print 'x = %d, y = %d'%(
        ix, iy)
    mask = cell_magic_wand.cell_magic_wand_single_point(im,(ix,iy),5,200,roughness=5)[0]
    plt.contour(mask)    
    print(mask)
   
cid = fig.canvas.mpl_connect('button_press_event', onclick)