class Watershed(QtGui.QMainWindow):
def __init__(self):
super(Watershed, self).__init__()
self.openFile()
def openFile(self):
filename = QtGui.QFileDialog.getOpenFileName(self, 'Open File', os.getenv('HOME'))
if filename:
self.watershedOptions()
self.process_image(str(filename))
def watershedOptions(self):
self.window = QWidget(None, Qt.WindowSystemMenuHint)
self.window.setGeometry(15, 30, 0, 0)
self.ui = Ui_watershedOptions()
self.ui.setupUi(self.window)
self.window.show()
def process_image(self, image_path):
self.img = cv2.imread(image_path)
h, w = self.img.shape[:2]
self.markers = np.zeros((h, w), np.int32)
self.markers_vis = self.img.copy()
self.cur_marker = 1
self.colors = np.int32(list(np.ndindex(2, 2, 2))) * 255
self.auto_update = True
self.sketch = Sketcher('img', [self.markers_vis, self.markers], self.get_colors)
self.run()
def get_colors(self):
return map(int, self.colors[self.cur_marker]), self.cur_marker
def watershed(self):
m = self.markers.copy()
cv2.watershed(self.img, m)
overlay = self.colors[np.maximum(m, 0)]
vis = cv2.addWeighted(self.img, 0.5, overlay, 0.5, 0.0, dtype=cv2.CV_8UC3)
cv2.imshow('watershed', vis)
def run(self):
while True:
ch = 0xFF & cv2.waitKey(50)
if ch == 27:
break
if ch >= ord('1') and ch <= ord('7'):
self.cur_marker = ch - ord('0')
print 'marker: ', self.cur_marker
if ch == ord(' ') or (self.sketch.dirty and self.auto_update):
self.watershed()
self.sketch.dirty = False
if ch in [ord('a'), ord('A')]:
self.auto_update = not self.auto_update
print 'auto_update if', ['off', 'on'][self.auto_update]
if ch in [ord('r'), ord('R')]:
self.markers[:] = 0
self.markers_vis[:] = self.img
self.sketch.show()
cv2.destroyAllWindows()
def process_image(self, image_path):
self.img = cv2.imread(image_path)
h, w = self.img.shape[:2]
self.markers = np.zeros((h, w), np.int32)
self.markers_vis = self.img.copy()
self.cur_marker = 1
self.colors = np.int32(list(np.ndindex(2, 2, 2))) * 255
self.auto_update = True
self.sketch = Sketcher('img', [self.markers_vis, self.markers], self.get_colors)
self.run()
