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gui.py
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gui.py
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import tkinter as tk
from tkinter import Label, Button, DoubleVar, Scale, HORIZONTAL, filedialog, IntVar, Checkbutton, Canvas
from tkinter.ttk import Label, Button
import numpy as np
import os
import queue
import threading
import torch
import webbrowser
from PIL import Image, ImageTk
from torchvision.transforms import transforms
import config
from autobright import normalize_brightness
from neural_models import CAN
from nicer import NICER, print_msg
running = True
class NicerGui:
def __init__(self, master, screen_size):
if screen_size[0] > 1920:
screen_size = list(screen_size) # when multiscreen, use only 1 screen
screen_size[0] = 1920
screen_size[1] = 1080
self.master = master
self.height = int(0.85 * screen_size[1])
self.width = int(0.85 * screen_size[0])
master.title("NICER - Neural Image Correction and Enhancement Routine")
master.geometry(str(self.width) + 'x' + str(self.height)) # let gui be x% of screen, centered
sliderlength = 200
self.nicer = NICER(checkpoint_can=config.can_checkpoint_path, checkpoint_nima=config.nima_checkpoint_path,
can_arch=config.can_filter_count)
self.device = 'cuda' if torch.cuda.is_available() else 'cpu'
self.can = CAN(no_of_filters=8) if config.can_filter_count == 8 else CAN(no_of_filters=7)
self.can.load_state_dict(torch.load(config.can_checkpoint_path, map_location=self.device)['state_dict'])
self.can.eval()
self.can.to(self.device)
# keep references to the images for further processing, bc tk.PhotoImage cannot be converted back
self.reference_img1 = None
self.reference_img2 = None
self.reference_img1_fullSize = None
self.img_namestring = None
self.img_extension = None
self.helper_x = None
self.helper_y = None
self.epochCount = None # for display only
self.threadKiller = threading.Event()
# labels:
if True:
self.fixlabel = Label(master, text="fix?")
self.saturation_label = Label(master, text="Saturation")
self.contrast_label = Label(master, text="Contrast")
self.brightness_label = Label(master, text="Brightness")
self.shadows_label = Label(master, text="Shadows")
self.highlights_label = Label(master, text="Highlights")
self.exposure_label = Label(master, text="Exposure")
self.locallaplacian_label = Label(master, text="Local Laplacian Filtering")
self.nonlocaldehazing_label = Label(master, text="Non-Local Dehazing")
self.gamma_label = Label(master, text="Gamma")
self.epoch_label = Label(master, text="Epochs:")
self.print_label = Label(master, text="Open an image to get started!")
self.print_label.place(x=int(0.635 * self.width), y=int(0.96 * self.height))
self.slider_labels = [self.saturation_label, self.contrast_label, self.brightness_label, self.shadows_label,
self.highlights_label, self.exposure_label, self.locallaplacian_label,
self.nonlocaldehazing_label]
# sliders:
if True:
self.saturation = DoubleVar()
self.saturation_isfixed = IntVar()
self.saturation_slider = Scale(master, from_=-100, to=100, length=sliderlength, orient=HORIZONTAL,
var=self.saturation)
self.saturation_checkbox = Checkbutton(master, var=self.saturation_isfixed)
self.contrast = DoubleVar()
self.contrast_isfixed = IntVar()
self.contrast_slider = Scale(master, from_=-100, to=100, length=sliderlength, orient=HORIZONTAL,
var=self.contrast)
self.contrast_checkbox = Checkbutton(master, var=self.contrast_isfixed)
self.brightness = DoubleVar()
self.brightess_isfixed = IntVar()
self.brightness_slider = Scale(master, from_=-100, to=100, length=sliderlength, orient=HORIZONTAL,
var=self.brightness)
self.brigtness_checkbox = Checkbutton(master, var=self.brightess_isfixed)
self.shadows = DoubleVar()
self.shadows_isfixed = IntVar()
self.shadows_slider = Scale(master, from_=-100, to=100, length=sliderlength, orient=HORIZONTAL,
var=self.shadows)
self.shadows_checkbox = Checkbutton(master, var=self.shadows_isfixed)
self.highlights = DoubleVar()
self.highlighs_isfixed = IntVar()
self.highlights_slider = Scale(master, from_=-100, to=100, length=sliderlength, orient=HORIZONTAL,
var=self.highlights)
self.highlights_checkbox = Checkbutton(master, var=self.highlighs_isfixed)
self.exposure = DoubleVar()
self.exposure_isfixed = IntVar()
self.exposure_slider = Scale(master, from_=-100, to=100, length=sliderlength, orient=HORIZONTAL,
var=self.exposure)
self.exposure_checkbox = Checkbutton(master, var=self.exposure_isfixed)
self.locallaplacian = DoubleVar()
self.locallaplacian_isfixed = IntVar()
self.locallaplacian_slider = Scale(master, from_=-100, to=100, length=sliderlength, orient=HORIZONTAL,
var=self.locallaplacian)
self.locallaplacian_checkbox = Checkbutton(master, var=self.locallaplacian_isfixed)
self.nonlocaldehazing = DoubleVar()
self.nonlocaldehazing_isfixed = IntVar()
self.nonlocaldehazing_slider = Scale(master, from_=-100, to=100, length=sliderlength, orient=HORIZONTAL,
var=self.nonlocaldehazing)
self.nonlocaldehazing_checkbox = Checkbutton(master, var=self.nonlocaldehazing_isfixed)
self.gamma = DoubleVar()
self.gamma_slider = Scale(master, from_=0.005, to=0.5, length=sliderlength, orient=HORIZONTAL,
var=self.gamma, resolution=0.005)
self.gamma_slider.set(0.1)
self.slider_variables = [self.saturation, self.contrast, self.brightness, self.shadows,
self.highlights, self.exposure, self.locallaplacian, self.nonlocaldehazing]
self.checkbox_variables = [self.saturation_isfixed, self.contrast_isfixed, self.brightess_isfixed,
self.shadows_isfixed, self.highlighs_isfixed, self.exposure_isfixed,
self.locallaplacian_isfixed, self.nonlocaldehazing_isfixed]
self.checkboxes = [self.saturation_checkbox, self.contrast_checkbox, self.brigtness_checkbox,
self.shadows_checkbox, self.highlights_checkbox, self.exposure_checkbox,
self.locallaplacian_checkbox, self.nonlocaldehazing_checkbox]
self.sliders = [self.saturation_slider, self.contrast_slider, self.brightness_slider, self.shadows_slider,
self.highlights_slider, self.exposure_slider, self.locallaplacian_slider,
self.nonlocaldehazing_slider]
# create images and line, and place them
if True:
w = Canvas(master, width=20, height=self.height)
w.place(x=int(0.365 * self.width), y=10)
w.create_line(10, 20, 10, int(0.9 * self.height), fill="#476042", dash=(4, 4))
pil_img_one = Image.new('RGB', (224, 224), (255, 255, 255))
pil_img_two = Image.new('RGB', (224, 224), (150, 150, 150))
tk_img_one = ImageTk.PhotoImage(pil_img_one)
tk_img_two = ImageTk.PhotoImage(pil_img_two)
self.tk_img_panel_one = Label(master, image=tk_img_one)
self.tk_img_panel_two = Label(master, image=tk_img_two)
self.tk_img_panel_one.image = tk_img_one
self.tk_img_panel_two.image = tk_img_two
# image pack happens later when open Image button is clicked
# place sliders and their labels:
if True:
# get 65% of screen height:
three_quarters = int(0.65 * self.height)
space = (three_quarters - 30) / 7
for idx, label in enumerate(self.slider_labels):
label.place(x=20, y=30 + idx * space)
for idx, slider in enumerate(self.sliders):
slider.place(x=150, y=10 + idx * space)
for idx, chckbx in enumerate(self.checkboxes):
chckbx.place(x=150 + sliderlength + 10, y=30 + idx * space)
self.fixlabel.place(x=360, y=10)
gamma_space = 2 * space if space < 60 else 120
self.gamma_label.place(x=20, y=50 + 6 * space + gamma_space)
self.gamma_slider.place(x=150, y=30 + 6 * space + gamma_space)
# create buttons and place
if True:
self.open_button = Button(master, text="Open Image", command=self.open_image)
self.save_button = Button(master, text="Save Image", command=self.save_image)
self.reset_button = Button(master, text="Reset", command=self.reset_all)
self.preview_button = Button(master, text="Preview", command=self.preview)
self.nicer_button = Button(master, text="NICER!", command=self.nicer_routine)
self.stop_button = Button(master, text="Stop!", command=self.stop)
self.about_button = Button(master, text="About", command=self.about)
button_y = 50 + 6 * space + gamma_space + 50
self.open_button.place(x=40, y=button_y + 20)
self.save_button.place(x=40, y=button_y + 60)
self.nicer_button.place(x=40 + 105, y=button_y + 20)
self.stop_button.place(x=40 + 105, y=button_y + 60)
self.preview_button.place(x=40 + 200, y=button_y + 20)
self.reset_button.place(x=40 + 200, y=button_y + 60)
self.about_button.place(x=40 + 105, y=button_y + 100)
self.epoch_label.place(x=40 + 105, y=button_y - 5)
self.epochVar = IntVar()
self.epochBox = tk.Entry(master, width=3)
self.epochBox.insert(-1, '50')
self.epochBox.place(x=40 + 160, y=button_y - 5)
def about(self):
url = 'https://github.com/mr-Mojo/NICER'
webbrowser.open(url, new=1)
def stop(self):
global running
running = False
def open_image(self, img_path=None):
"""
opens an image, if the image extension is supported in config.py. Currently supported extensions are jpg, png and dng, although
more might work. The image is resized for displaying. A reference for further processing is stored in self.reference_img_fullSize.
"""
filepath = filedialog.askopenfilename(initialdir=os.getcwd(), title="Select an image to open",
filetypes=(
("jpg files", "*.jpg"), ("png files", "*.png"), ("all files", "*.*")))
if filepath is None: return
if filepath.split('.')[-1] in config.supported_extensions:
self.img_namestring = filepath.split('.')[0]
self.img_extension = filepath.split('.')[-1]
pil_img = Image.open(filepath)
img_width = pil_img.size[0]
img_height = pil_img.size[1]
# dirty hack to avoid errors when image is a square:
if img_width == img_height:
pil_img = pil_img.resize((img_width, img_height - 1))
img_width = pil_img.size[0]
img_height = pil_img.size[1]
self.reference_img1_fullSize = pil_img
print_msg("Full image size: {}x{}".format(img_width, img_height), 3)
# resize images so that they can fit next to each other:
# margins of the display canvas: 0.6*windowwidth, 0.9*windowheight
if img_width > img_height:
max_width = int(0.6 * self.width) # images wider than high: place above each other
max_height = int(0.5 * 0.9 * self.height) # max height is half the display canvas
elif img_height > img_width:
max_width = int(0.5 * 0.6 * self.width) # images higher than wide: place next to each other
max_height = int(0.9 * self.width)
max_size = int(0.9 * self.height) if img_height > img_width else int(0.6 * self.width)
# just to that there are no errors if image is not resized:
new_img_width = img_width
new_img_height = img_height
# img too large: either exceeds max size, or it is too broad / high to be displayed next to each other
if max(pil_img.size) > max_size or pil_img.size[1] > max_height or pil_img.size[0] > max_width:
longer_side = max(pil_img.size)
factor = max_size / longer_side
new_img_width = int(img_width * factor)
new_img_height = int(img_height * factor)
if img_width > img_height and new_img_height > max_height: # landscape format
while new_img_height > max_height:
factor *= 0.99
print_msg("reduced factor to %f" % factor, 3)
new_img_width = int(img_width * factor)
new_img_height = int(img_height * factor)
elif img_height > img_width and new_img_width > max_width: # portrait format
while new_img_width > max_width:
factor *= 0.99
print_msg("reduced factor to %f" % factor, 3)
new_img_width = int(img_width * factor)
new_img_height = int(img_height * factor)
# img is now resized in a way for 2 images to fit next to each other
pil_img = pil_img.resize((new_img_width, new_img_height))
self.reference_img1 = pil_img
tkImage = ImageTk.PhotoImage(pil_img)
self.tk_img_panel_one.image = tkImage
self.tk_img_panel_one.configure(image=tkImage)
print_msg("Display image size: {}x{}".format(new_img_width, new_img_height), 3)
pil_img_dummy = Image.new('RGB', (new_img_width, new_img_height), (200, 200, 200))
tkImage_dummy = ImageTk.PhotoImage(pil_img_dummy)
self.reference_img2 = pil_img_dummy
self.tk_img_panel_two.image = tkImage_dummy
self.tk_img_panel_two.configure(image=tkImage_dummy)
offset_y = int(0.05 * self.height)
offset_x = int(0.365 * self.width) + 10 # bc line is offset for 10
space_btwn_imgs = 10
# "place" geometry manager has 0/0 in the upper left corner
if img_width > img_height: # wider than high: place above each other
space_right_of_line = 0.635 * 0.5 * self.width # get free space right of line
img_x = offset_x + int(
(space_right_of_line - 0.5 * pil_img.size[0])) # shift it by line offset, get half
vertical_middle = 0.9 * 0.5 * self.height # get available vertical space, middle it
img_y1 = offset_y + vertical_middle - pil_img.size[1]
img_y2 = offset_y + vertical_middle + space_btwn_imgs
self.tk_img_panel_one.place(x=img_x, y=img_y1)
self.tk_img_panel_two.place(x=img_x, y=img_y2)
self.helper_x = img_x
self.helper_y = img_y2
if img_height > img_width: # higher than wide: place next to each other
img_x1 = offset_x + int(0.635 * 0.5 * self.width) - pil_img.size[
0] # get space right of line, divide it by two, subtract img width
img_x2 = offset_x + int(
0.635 * 0.5 * self.width) + space_btwn_imgs # get space right of line, add small constant
vertical_middle = 0.9 * 0.5 * self.height # get available vertical space, middle it
img_y = offset_y + vertical_middle - int(pil_img.size[1] * 0.5)
self.tk_img_panel_one.place(x=img_x1, y=img_y)
self.tk_img_panel_two.place(x=img_x2, y=img_y)
self.helper_x = img_x2
self.helper_y = img_y
self.print_label['text'] = "Image loaded successfully!"
return pil_img
else:
self.print_label['text'] = "No valid image format. Use a format specified in the config."
return None
# final can pass with found filter intensities happens in save_image for the full resolution image
# (to save time during optimization, we optimize on the rescaled image)
def save_image(self, save_path=None):
"""
saves an image, if it has previously been modified (i.e., if the slider values != 0).
The unedited full size reference image is stored in self.reference_img_1_fullSize.
"""
if self.tk_img_panel_two.winfo_ismapped() and self.slider_variables:
filepath = filedialog.asksaveasfilename(initialdir=os.getcwd(), title="Save the edited image",
filetypes=(("as jpg file", "*.jpg"),
# ("as raw file", "*.png"),
("all files", "*.*")))
if len(filepath.split('.')) == 1:
filepath += '.jpg'
self.print_label['text'] = 'Saving image...'
else:
self.print_label['text'] = 'Load and edit an image first!'
return
current_filer_values, current_gamma = self.get_all_slider_values()
self.nicer.set_filters(current_filer_values)
self.nicer.set_gamma(current_gamma)
# calc a factor for resizing to config.final_size
width, height = self.reference_img1_fullSize.size # img.size: (width, height)
if width > config.final_size or height > config.final_size:
print("resize")
print_msg("Resizing to {}p before saving".format(str(config.final_size)), 3)
factor = config.final_size / height if (height > width) else config.final_size / width
width = int(width * factor)
height = int(height * factor)
try:
hd_image = self.nicer.single_image_pass_can(self.reference_img1_fullSize.resize((width, height)),
abn=True)
except RuntimeError:
# image and model too large for GPU
hd_image = self.nicer.single_image_pass_can(self.reference_img1_fullSize.resize((width, height)),
abn=True, mapToCpu=True)
else:
# dims < config.final_size on the longest side, no resizing
try:
hd_image = self.nicer.single_image_pass_can(self.reference_img1, abn=True)
except RuntimeError:
hd_image = self.nicer.single_image_pass_can(self.reference_img1, abn=True, mapToCpu=True)
if hd_image is not None:
hd_image_pil = Image.fromarray(hd_image)
hd_image_pil.save(filepath)
self.print_label['text'] = 'Image saved successfully!'
else:
self.print_label['text'] = 'Could not save image. See console output.'
def reset_all(self):
""" reset GUI and slider values """
for slider in self.sliders:
slider.set(0)
self.gamma_slider.set(0.100)
for variable in self.slider_variables:
variable.set(0)
for checkbox in self.checkboxes:
checkbox.deselect()
for variable in self.checkbox_variables:
variable.set(0)
self.epochBox.delete(0, 'end')
self.epochBox.insert(-1, '50')
self.threadKiller.clear()
# self.tk_img_panel_one.place_forget() # leave the current image, reset only filters and edited img
self.tk_img_panel_two.place_forget()
def preview(self, filterList=None):
""" apply the currently set slider combination onto the image (using resized img for increased speed) """
# check if image is yet available, else do nothing
if not self.tk_img_panel_one.winfo_ismapped():
self.print_label['text'] = "Load image first."
return
current_filter_values, current_gamma = self.get_all_slider_values()
self.nicer.set_gamma(current_gamma)
self.nicer.set_filters(current_filter_values)
preview_image = self.nicer.single_image_pass_can(self.reference_img1, abn=True)
self.reference_img2 = Image.fromarray(preview_image)
self.display_img_two()
def display_img_two(self):
tk_preview = ImageTk.PhotoImage(self.reference_img2)
self.tk_img_panel_two.place(x=self.helper_x, y=self.helper_y)
self.tk_img_panel_two.image = tk_preview
self.tk_img_panel_two.configure(image=tk_preview)
def get_all_slider_values(self):
values = [var.get() / 100.0 for var in self.slider_variables]
print_msg("Sliders values: {} -- Gamma: {}".format(values, self.gamma.get()), 3)
return values, self.gamma.get()
def get_all_checkbox_values(self):
values = [var.get() for var in self.checkbox_variables]
print_msg("Fixed Filters: {}".format(values), 3)
gui_exp = values[5]
gui_llf = values[6]
gui_nld = values[7]
values[5] = gui_llf
values[6] = gui_nld
values[7] = gui_exp # change indices bc exp in CAN is #8 but in GUI is #5
return values
def set_all_image_filter_sliders(self, valueList):
# does not set gamma. called by nicer_enhance routine to display final outcome of enhancement
for i in range(5):
self.sliders[i].set(valueList[i])
self.slider_variables[i].set(valueList[i])
# valueList is returned by NICER and has format sat-con-bri-sha-hig-llf-nld-exp
# sliders is controlled by gui and has format sat-con-bri-sha-hig-exp-llf-nld
self.sliders[6].set(valueList[5])
self.sliders[7].set(valueList[6])
self.sliders[5].set(valueList[7])
self.slider_variables[6].set(valueList[5])
self.slider_variables[7].set(valueList[6])
self.slider_variables[5].set(valueList[7])
def checkqueue(self):
while self.nicer.queue.qsize():
try:
msg = self.nicer.queue.get(0)
if isinstance(msg, int): # passed the epoch count
self.print_label['text'] = 'Optimizing epoch {} of {}'.format(str(msg), self.epochCount)
elif isinstance(msg, list): # passed the filter values
self.set_all_image_filter_sliders([x * 100 for x in msg])
elif isinstance(msg, np.ndarray): # thread terminated, passed the last enhanced image
enhanced_img_pil = Image.fromarray(msg)
self.reference_img2 = enhanced_img_pil
self.display_img_two()
else: # passed 'dummy' string to get here
if not config.preview: return
# previewing while optimization, need to do filter setting and can pass manually
# cannot use enhanced img from can optimization, as its wrong format (224x224)
current_filter_values, gamma = self.get_all_slider_values()
filterValues = [0.0] * 8
for i in range(5):
filterValues[i] = current_filter_values[i]
filterValues[5] = current_filter_values[6] # llf is 5 in can but 6 in gui (bc exp is inserted)
filterValues[6] = current_filter_values[7] # nld is 6 in can but 7 in gui
filterValues[7] = current_filter_values[5] # exp is 7 in can but 5 in gui
preview_image = self.alternate_can(self.reference_img1, filterValues)
self.reference_img2 = Image.fromarray(preview_image)
self.display_img_two()
except queue.Queue.Empty:
pass
def periodiccall(self):
self.checkqueue()
if self.thread.is_alive() and running: # running is set to false by stop button
self.master.after(100, self.periodiccall)
elif not self.thread.is_alive() and running: # thread terminated naturally, after optimization
self.print_label['text'] = "Optimization finished."
self.nicer_button.config(state="active")
self.nicer.queue = queue.Queue()
else:
self.threadKiller.set() # thread killed by stop button
self.thread.join()
self.print_label['text'] = "Stopped optimization."
self.nicer_button.config(state="active")
self.threadKiller.clear()
self.nicer.queue = queue.Queue()
def nicer_routine(self):
global running
running = True
self.nicer_button.config(state="disabled")
self.nicer_enhance()
def nicer_enhance(self):
# check if image is yet available, else do nothing
if self.tk_img_panel_one.winfo_ismapped():
self.nicer.re_init() # reset everything, especially optimizers, for a fresh optimization
# get slider values and set them for the optimization routine
slider_vals, gamma = self.get_all_slider_values()
checkbox_vals = self.get_all_checkbox_values()
self.nicer.set_filters(slider_vals)
self.nicer.set_gamma(gamma)
custom_filters = False
for value in slider_vals:
if value != 0.0: custom_filters = True
self.epochCount = int(self.epochBox.get())
if not custom_filters:
print_msg("All filters are zero.", 2)
self.thread = threading.Thread(target=self.nicer.enhance_image, args=(self.reference_img1,
True, checkbox_vals,
self.epochCount,
self.threadKiller), daemon=True)
else:
print_msg("Using user-defined filter preset", 2)
self.thread = threading.Thread(target=self.nicer.enhance_image, args=(self.reference_img1,
False, checkbox_vals,
self.epochCount,
self.threadKiller), daemon=True)
self.thread.start()
self.periodiccall()
else:
self.print_label['text'] = "Load image first."
def alternate_can(self, image, filterList):
# alternate CAN for previewing the images, as NICER's CAN is used for gradient computation
# filterList is passable since while optimizing, we cannot use nicer.filters, as these hold the gradients
# gets called from periodiccall queue handler
bright_norm_img = normalize_brightness(image, input_is_PIL=True)
image = Image.fromarray(bright_norm_img)
image_tensor = transforms.ToTensor()(image)
filter_tensor = torch.zeros((8, image_tensor.shape[1], image_tensor.shape[2]),
dtype=torch.float32).to(self.device) # tensorshape [c,w,h]
for l in range(8):
filter_tensor[l, :, :] = filterList[l] # construct uniform filtermap
mapped_img = torch.cat((image_tensor.cpu(), filter_tensor.cpu()), dim=0).unsqueeze(dim=0).to(self.device)
enhanced_img = self.can(mapped_img) # enhance img with CAN
enhanced_img = enhanced_img.cpu()
enhanced_img = enhanced_img.detach().permute(2, 3, 1, 0).squeeze().numpy()
enhanced_clipped = np.clip(enhanced_img, 0.0, 1.0) * 255.0
enhanced_clipped = enhanced_clipped.astype('uint8')
# returns a np.array of type np.uint8
return enhanced_clipped