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interface.py
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interface.py
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import traceback
from Tkinter import *
from PIL import ImageTk, Image
from functools import partial
import numpy as np
__author__ = 'mhuijser'
class VerticalScrolledFrame(Frame):
"""A pure Tkinter scrollable frame that actually works!
* Use the 'interior' attribute to place widgets inside the scrollable frame
* Construct and pack/place/grid normally
* This frame only allows vertical scrolling
https://github.com/ewanbarr/anansi/blob/master/anansi/ui_tools/scrollable_frame.py
"""
def __init__(self, parent, *args, **kw):
Frame.__init__(self, parent, *args, **kw)
# create a canvas object and a vertical scrollbar for scrolling it
vscrollbar = Scrollbar(self, orient=VERTICAL)
vscrollbar.pack(fill=Y, side=RIGHT, expand=False)
canvas = Canvas(self, bd=0, highlightthickness=0,
yscrollcommand=vscrollbar.set)
canvas.pack(side=LEFT, fill=BOTH, expand=TRUE)
vscrollbar.config(command=canvas.yview)
# reset the view
canvas.xview_moveto(0)
canvas.yview_moveto(0)
# create a frame inside the canvas which will be scrolled with it
self.interior = interior = Frame(canvas)
interior_id = canvas.create_window(0, 0, window=interior,
anchor=NW)
# track changes to the canvas and frame width and sync them,
# also updating the scrollbar
def _configure_interior(event):
# update the scrollbars to match the size of the inner frame
size = (interior.winfo_reqwidth(), interior.winfo_reqheight())
canvas.config(scrollregion="0 0 %s %s" % size)
if interior.winfo_reqwidth() != canvas.winfo_width():
# update the canvas's width to fit the inner frame
canvas.config(width=interior.winfo_reqwidth())
if interior.winfo_reqheight() != canvas.winfo_height():
canvas.config(height=min(interior.winfo_reqheight(), 950))
interior.bind('<Configure>', _configure_interior)
def _configure_canvas(event):
if interior.winfo_reqwidth() != canvas.winfo_width():
# update the inner frame's width to fill the canvas
canvas.itemconfigure(interior_id, width=canvas.winfo_width())
canvas.bind('<Configure>', _configure_canvas)
def _bound_to_mousewheel(event):
canvas.bind_all("<Button-4>", _on_mousewheel)
canvas.bind_all("<Button-5>", _on_mousewheel)
def _unbound_to_mousewheel(event):
canvas.unbind_all("<Button-4>")
canvas.unbind_all("<Button-5>")
def _on_mousewheel(event):
if event.num == 5:
canvas.yview_scroll(-1, "units")
elif event.num == 4:
canvas.yview_scroll(1, "units")
interior.bind('<Enter>', _bound_to_mousewheel)
interior.bind('<Leave>', _unbound_to_mousewheel)
class PointLabelInterface(object):
def __init__(self, point_query_image, classes, classes_dictionary):
"""
Provides functions for point-labeling (traditional active learning) by human.
:param point_query_image: the to-be-labeled query image.
:param classes: list of integers denoting the possible classes.
:param classes_dictionary: dictionary with key the class as int and value the class label as string.
"""
self.point_query_image = point_query_image
self.classes = classes
self.classes_dictionary = classes_dictionary
self.label_point_query = None
self.master = Tk()
self.make_image()
self.master.mainloop()
def make_image(self):
self.image_frame = Frame()
self.image_frame.grid(row=3, column=1, columnspan=1)
self.confirm_button = Button(self.image_frame, command=self.confirm_callback, text="Confirm", state=DISABLED)
self.confirm_button.grid(row=3, column=1)
class_var = StringVar()
self.dropdown_class = OptionMenu(self.image_frame, class_var, self.classes_dictionary[self.classes[0]],
self.classes_dictionary[self.classes[1]], command=self.class_dropdown_callback)
self.dropdown_class.var = class_var
self.dropdown_class.grid(row=2, column=1)
if self.point_query_image.shape[1] == 1:
query_img = self.point_query_image[0, :, :].squeeze()
else:
query_img = self.point_query_image.squeeze().transpose(1, 2, 0)
query_img = Image.fromarray(np.uint8(255 * query_img))
query_img = ImageTk.PhotoImage(query_img)
imglabel = Label(self.image_frame, image=query_img, text="point query", compound=BOTTOM)
imglabel.image = query_img
imglabel.grid(row=1, column=1)
self.image_frame.pack()
return True
def class_dropdown_callback(self, value):
self.value_dropdown = value
self.update_confirm_button()
def update_confirm_button(self):
if self.dropdown_class.var.get() != "":
self.confirm_button.configure(state=NORMAL)
else:
self.confirm_button.configure(state=DISABLED)
def find_key(self, value):
for key, val in self.classes_dictionary.items():
if val == value:
return key
def confirm_callback(self):
self.label_point_query = self.find_key(self.value_dropdown)
self.image_frame.destroy()
self.master.destroy()
class LabelInterface(object):
def __init__(self, line_vectors, line_images, point_query, point_query_image, intersection_point_cdb, classes,
classes_dictionary):
"""
Display query line and provide interface for human annotator to label it.
:param line_vectors: points on query line.
:param line_images: images generated from points on query line.
:param point_query: the query sample, as point on line.
:param point_query_image: the generated image corresponding to the query sample point.
:param intersection_point_cdb: intersection point of query line with current estimated decision boundary.
:param classes: list of integers denoting the possible classes.
:param classes_dictionary: dictionary with key the class as int and value the class label as string.
"""
self.ll = 14 # number of images.
self.classes = classes
self.classes_dictionary = classes_dictionary
self.handbags = False
if line_images.shape[2] > 40:
pass
self.line = line_vectors # (n_samples, n_dim)
self.line_images = line_images # (n_samples, n_channels, height, width)
self.point_query = point_query # (n_dim,1)
self.point_query_image = point_query_image
self.intersection_point_cdb = intersection_point_cdb
self.__selected = None
self.select_colour = "forest green"
self.base_colour = 'LightSkyBlue1'
self.intersection_colour = "forest green"
self.query_colour = "DarkOrange2"
self.master = Tk()
self.line_index = 0
self.t_values_buttons = None
self.t_values_images = None
self.label_point_query = None
self.chosen_point = None
self.results_dictionary = {}
try:
self.make_line(self.line_images)
except Exception as e:
print traceback.print_exc()
self.master.mainloop()
def compute_length(self, line_segment):
return np.linalg.norm(self.to_vector(line_segment[0, :]) - self.to_vector(line_segment[-1, :]))
def compute_distance(self, p1, p2):
print p1.shape, p2.shape
return np.linalg.norm(p1 - p2)
def to_vector(self, x):
try:
if x.shape[1] == 1:
return x
elif x.shape[0] == 1 and x.shape[1] > 1:
return x.reshape((x.shape[1], 1))
else:
raise TypeError("This is not a vector!")
except IndexError:
return x.reshape((len(x), 1))
def compute_t(self, A, B, point):
AB = B - A
return np.asscalar(np.dot((point - A).T, (AB)) / np.dot((AB).T, (AB)))
def define_line(self, line_segment):
A = self.to_vector(line_segment[0, :])
B = self.to_vector(line_segment[-1, :])
# A + (B-A)t
return A, B
def find_nearest(self, array, value):
idx = (np.abs(array - value)).argmin()
return array[idx], idx
def set_intersection_point(self, t):
button = self.get_button_for_t(t)
button.config(highlightbackground=self.intersection_colour, highlightthickness=1.5)
def set_query_point(self, t):
button = self.get_button_for_t(t)
button.config(highlightbackground=self.query_colour, highlightthickness=1.5)
def make_line(self, line_images):
self.t_values_buttons = []
self.t_values_images = []
self.A, self.B = self.define_line(self.line)
# print "Length", self.compute_length(self.line)
t_intersection_point = self.compute_t(self.A, self.B, self.intersection_point_cdb)
t_point_query = self.compute_t(self.A, self.B, self.point_query)
self.scrolled_window = VerticalScrolledFrame(self.master)
self.line_frame = Frame(self.scrolled_window.interior)
self.buttons = []
line_length = self.line.shape[0]
row = -1
self.line_frame.grid(row=line_length / self.ll, column=29, columnspan=1)
col_counter = 0
# Display it
for i, image in enumerate(line_images):
col = i % self.ll
if col == 0:
col_counter = 0
row += 1
t = self.compute_t(self.A, self.B, self.to_vector(self.line[i, :]))
self.t_values_images.append(t)
if image.shape[0] == 1:
img = image[0, :, :].squeeze()
else:
img = image.transpose(1, 2, 0).squeeze()
img = Image.fromarray(np.uint8(255 * img))
img = ImageTk.PhotoImage(img)
callback = partial(self.click_callback, i)
button = Button(self.line_frame, command=callback, bg=self.base_colour)
button.grid(row=row, column=col_counter)
col_counter += 1
self.buttons.append(button)
imglabel = Label(self.line_frame, image=img, text="%.2f" % t, compound=BOTTOM)
imglabel.image = img
imglabel.grid(row=row, column=col_counter)
col_counter += 1
callback = partial(self.click_callback, line_length)
last_button = Button(self.line_frame, command=callback, bg=self.base_colour)
self.buttons.append(last_button)
last_button.grid(row=row, column=col_counter)
self.line_frame.columnconfigure(13, weight=1)
step = 0.5 * (self.t_values_images[1] - self.t_values_images[0])
self.t_values_buttons = np.linspace(self.t_values_images[0] - step, self.t_values_images[-1] + step,
len(self.t_values_images) + 1)
self.set_intersection_point(t_intersection_point)
self.set_query_point(t_point_query)
r = line_length / self.ll + 3
self.buttonframe = Frame(self.scrolled_window.interior)
self.buttonframe.grid(row=r, column=3, columnspan=29)
self.confirm_button = Button(self.buttonframe, command=self.confirm_callback, text="Confirm", state=DISABLED)
self.confirm_button.grid(row=r, column=1)
Label(self.buttonframe, text="Proper line:", font=("Helvetica", 12)).grid(row=r - 1, column=0)
yes_var = IntVar()
yes_callback = partial(self.update_checkbuttons, "Yes")
self.checkbox_yes = Checkbutton(self.buttonframe, text="Yes", variable=yes_var, command=yes_callback)
self.checkbox_yes.var = yes_var
self.checkbox_yes.grid(row=r - 1, column=1)
no_var = IntVar()
no_callback = partial(self.update_checkbuttons, "No")
self.checkbox_no = Checkbutton(self.buttonframe, text="No", variable=no_var, command=no_callback)
self.checkbox_no.var = no_var
self.checkbox_no.grid(row=r - 1, column=2)
class_var = StringVar()
self.dropdown_class = OptionMenu(self.buttonframe, class_var, self.classes_dictionary[self.classes[0]],
self.classes_dictionary[self.classes[1]], command=self.class_dropdown_callback)
self.dropdown_class.var = class_var
self.dropdown_class.grid(row=r - 2, column=1)
if self.point_query_image.shape[1] == 1:
query_img = self.point_query_image[0, :, :].squeeze()
else:
query_img = self.point_query_image.squeeze().transpose(1, 2, 0)
query_img = Image.fromarray(np.uint8(255 * query_img))
query_img = ImageTk.PhotoImage(query_img)
imglabel = Label(self.buttonframe, image=query_img, text="point query", compound=BOTTOM)
imglabel.image = query_img
imglabel.grid(row=r - 2, column=2)
self.scrolled_window.pack()
return True
def class_dropdown_callback(self, value):
self.value_dropdown = value
self.update_confirm_button()
def update_checkbuttons(self, checkbutton_label):
if checkbutton_label == "Yes":
if self.checkbox_yes.var.get():
self.checkbox_no.deselect()
elif checkbutton_label == "No":
if self.checkbox_no.var.get():
self.checkbox_yes.deselect()
self.update_confirm_button()
def update_confirm_button(self):
if self.checkbox_no.var.get() and self.dropdown_class.var.get() != "":
self.confirm_button.configure(state=NORMAL)
elif self.one_checkbutton_true() and self.selected is not None and self.dropdown_class.var.get() != "":
self.confirm_button.configure(state=NORMAL)
else:
self.confirm_button.configure(state=DISABLED)
def one_checkbutton_true(self):
return self.checkbox_yes.var.get() or self.checkbox_no.var.get()
@property
def selected(self):
return self.__selected
@selected.setter
def selected(self, number):
self.__selected = number
self.update_confirm_button()
def click_callback(self, button_number):
for b in self.buttons:
b.configure(bg=self.base_colour)
if button_number == self.selected:
self.selected = None
else:
self.buttons[button_number].configure(bg=self.select_colour)
self.selected = button_number
def get_vector_from_button_number(self, line_index, button_number):
line = lambda t: self.A + (self.B - self.A) * t
vector = line(self.t_values_buttons[button_number])
return vector
def get_button_for_t(self, t):
_, idx = self.find_nearest(self.t_values_buttons, t)
return self.buttons[idx]
def process_result(self, current_line_index, button_number, value_seebothclasses):
if value_seebothclasses and button_number is not None:
self.chosen_point = self.get_vector_from_button_number(current_line_index, button_number)
else:
self.chosen_point = None
self.label_point_query = self.find_key(self.value_dropdown)
def find_key(self, value):
for key, val in self.classes_dictionary.items():
if val == value:
return key
def confirm_callback(self):
self.process_result(self.line_index, self.selected, self.checkbox_yes.var.get())
self.selected = None
self.line_frame.destroy()
self.scrolled_window.interior.destroy()
self.scrolled_window.destroy()
self.master.destroy()