EveryDream2trainer/scripts/img_caption_gui.py

161 lines
5.5 KiB
Python
Raw Normal View History

2023-07-08 21:56:03 -06:00
# Python GUI tool to manually caption images for machine learning.
# A sidecar file is created for each image with the same name and a .txt extension.
#
# [control/command + o] to open a folder of images.
# [page down] and [page up] to go to next and previous images. Hold shift to skip 10 images.
# [shift + home] and [shift + end] to go to first and last images.
# [shift + delete] to move the current image into a '_deleted' folder.
# [escape] to exit the app.
import sys
import tkinter as tk
from tkinter import filedialog
from PIL import Image, ImageTk
from pathlib import Path
IMG_EXT = ["jpg", "jpeg", "png", "webp"]
class CaptionedImage():
def __init__(self, image_path):
self.base_path = image_path.parent
self.path = image_path
def caption_path(self):
return self.base_path / (self.path.stem + '.txt')
def read_caption(self):
caption_path = self.caption_path()
if caption_path.exists():
with open(caption_path, 'r', encoding='utf-8', newline='') as f:
return f.read()
return ''
def write_caption(self, caption):
caption_path = self.caption_path()
with open(str(caption_path), 'w', encoding='utf-8', newline='') as f:
f.write(caption)
# sort
def __lt__(self, other):
return str(self.path).lower() < str(other.path).lower()
class ImageView(tk.Frame):
def __init__(self, root):
tk.Frame.__init__(self, root)
self.root = root
self.base_path = None
self.images = []
self.index = 0
# image
self.image_frame = tk.Frame(self)
self.image_label = tk.Label(self.image_frame)
self.image_label.place(relx=0.5, rely=0.5, anchor=tk.CENTER)
self.image_frame.pack(expand=True, fill=tk.BOTH, side=tk.LEFT)
# caption field
self.caption_frame = tk.Frame(self)
self.caption_field = tk.Text(self.caption_frame, wrap="word", width=50)
self.caption_field.pack(expand=True, fill=tk.BOTH)
self.caption_frame.pack(fill=tk.Y, side=tk.RIGHT)
def open_folder(self):
dir = filedialog.askdirectory()
if not dir:
return
self.base_path = Path(dir)
if self.base_path is None:
return
self.images.clear()
for ext in IMG_EXT:
for file in self.base_path.glob(f'*.{ext}'):
self.images.append(CaptionedImage(file))
self.images.sort()
self.update_ui()
def store_caption(self):
txt = self.caption_field.get(1.0, tk.END)
txt = txt.replace('\r', '').replace('\n', '').strip()
self.images[self.index].write_caption(txt)
def set_index(self, index):
self.index = index % len(self.images)
def go_to_image(self, index):
if len(self.images) == 0:
return
self.store_caption()
self.set_index(index)
self.update_ui()
def next_image(self):
self.go_to_image(self.index + 1)
def prev_image(self):
self.go_to_image(self.index - 1)
# move current image to a "_deleted" folder
def delete_image(self):
if len(self.images) == 0:
return
img = self.images[self.index]
trash_path = self.base_path / '_deleted'
if not trash_path.exists():
trash_path.mkdir()
img.path.rename(trash_path / img.path.name)
caption_path = img.caption_path()
if caption_path.exists():
caption_path.rename(trash_path / caption_path.name)
del self.images[self.index]
self.set_index(self.index)
self.update_ui()
def update_ui(self):
if (len(self.images)) == 0:
self.filename.set('')
self.caption_field.delete(1.0, tk.END)
self.image_label.configure(image=None)
return
img = self.images[self.index]
# filename
title = self.images[self.index].path.name if len(self.images) > 0 else ''
self.root.title(title + f' ({self.index+1}/{len(self.images)})')
# caption
self.caption_field.delete(1.0, tk.END)
self.caption_field.insert(tk.END, img.read_caption())
# image
img = Image.open(self.images[self.index].path)
# scale the image to fit inside the frame
w = self.image_frame.winfo_width()
h = self.image_frame.winfo_height()
if img.width > w or img.height > h:
img.thumbnail((w, h))
photoImage = ImageTk.PhotoImage(img)
self.image_label.configure(image=photoImage)
self.image_label.image = photoImage
if __name__=='__main__':
root = tk.Tk()
root.geometry('1200x800')
root.title('Image Captions')
if sys.platform == 'darwin':
root.bind('<Command-o>', lambda e: view.open_folder())
else:
root.bind('<Control-o>', lambda e: view.open_folder())
root.bind('<Escape>', lambda e: root.destroy())
root.bind('<Prior>', lambda e: view.prev_image())
root.bind('<Next>', lambda e: view.next_image())
root.bind('<Shift-Prior>', lambda e: view.go_to_image(view.index - 10))
root.bind('<Shift-Next>', lambda e: view.go_to_image(view.index + 10))
root.bind('<Shift-Home>', lambda e: view.go_to_image(0))
root.bind('<Shift-End>', lambda e: view.go_to_image(len(view.images) - 1))
root.bind('<Shift-Delete>', lambda e: view.delete_image())
view = ImageView(root)
view.pack(side=tk.TOP, fill=tk.BOTH, expand=True)
root.mainloop()