348 lines
11 KiB
Python
348 lines
11 KiB
Python
# Modules/data_collector.py
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import threading
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import time
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import re
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import sys
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import numpy as np
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import cv2
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import concurrent.futures
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# Vision-related Imports
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import pytesseract
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import easyocr
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import torch
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from PIL import Image, ImageGrab, ImageFilter
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from PyQt5.QtWidgets import QApplication, QWidget
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from PyQt5.QtCore import QRect, QPoint, Qt, QMutex, QTimer
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from PyQt5.QtGui import QPainter, QPen, QColor, QFont
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# Initialize EasyOCR with CUDA support
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reader_cpu = easyocr.Reader(['en'], gpu=False)
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reader_gpu = easyocr.Reader(['en'], gpu=True if torch.cuda.is_available() else False)
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pytesseract.pytesseract.tesseract_cmd = r"C:\Program Files\Tesseract-OCR\tesseract.exe"
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DEFAULT_WIDTH = 180
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DEFAULT_HEIGHT = 130
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HANDLE_SIZE = 8
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LABEL_HEIGHT = 20
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collector_mutex = QMutex()
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regions = {}
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app_instance = None
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def _ensure_qapplication():
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"""
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Ensures that QApplication is initialized before creating widgets.
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Must be called from the main thread.
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"""
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global app_instance
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if app_instance is None:
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app_instance = QApplication(sys.argv) # Start in main thread
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def capture_region_as_image(region_id):
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collector_mutex.lock()
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if region_id not in regions:
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collector_mutex.unlock()
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return None
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x, y, w, h = regions[region_id]['bbox'][:]
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collector_mutex.unlock()
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screenshot = ImageGrab.grab(bbox=(x, y, x + w, y + h))
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return screenshot
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def create_ocr_region(region_id, x=250, y=50, w=DEFAULT_WIDTH, h=DEFAULT_HEIGHT, color=(255, 255, 0), thickness=2):
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"""
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Creates an OCR region with a visible, resizable box on the screen.
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Allows setting custom color (RGB) and line thickness.
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"""
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_ensure_qapplication()
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collector_mutex.lock()
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if region_id in regions:
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collector_mutex.unlock()
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return
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regions[region_id] = {
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'bbox': [x, y, w, h],
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'raw_text': "",
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'widget': OCRRegionWidget(x, y, w, h, region_id, color, thickness)
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}
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collector_mutex.unlock()
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def get_raw_text(region_id):
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collector_mutex.lock()
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if region_id not in regions:
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collector_mutex.unlock()
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return ""
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text = regions[region_id]['raw_text']
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collector_mutex.unlock()
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return text
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def start_collector():
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t = threading.Thread(target=_update_ocr_loop, daemon=True)
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t.start()
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def _update_ocr_loop():
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while True:
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collector_mutex.lock()
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region_ids = list(regions.keys())
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collector_mutex.unlock()
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for rid in region_ids:
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collector_mutex.lock()
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bbox = regions[rid]['bbox'][:]
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collector_mutex.unlock()
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x, y, w, h = bbox
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screenshot = ImageGrab.grab(bbox=(x, y, x + w, y + h))
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processed = _preprocess_image(screenshot)
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raw_text = pytesseract.image_to_string(processed, config='--psm 6 --oem 1')
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collector_mutex.lock()
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if rid in regions:
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regions[rid]['raw_text'] = raw_text
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collector_mutex.unlock()
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time.sleep(0.7)
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def _preprocess_image(image):
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gray = image.convert("L")
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scaled = gray.resize((gray.width * 3, gray.height * 3))
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thresh = scaled.point(lambda p: 255 if p > 200 else 0)
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return thresh.filter(ImageFilter.MedianFilter(3))
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def find_word_positions(region_id, word, offset_x=0, offset_y=0, margin=5, ocr_engine="CPU", num_slices=1):
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"""
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Uses user-defined horizontal slices and threading for faster inference.
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"""
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collector_mutex.lock()
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if region_id not in regions:
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collector_mutex.unlock()
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return []
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bbox = regions[region_id]['bbox']
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collector_mutex.unlock()
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x, y, w, h = bbox
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left, top, right, bottom = x, y, x + w, y + h
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if right <= left or bottom <= top:
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print(f"[ERROR] Invalid OCR region bounds: {bbox}")
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return []
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try:
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image = ImageGrab.grab(bbox=(left, top, right, bottom))
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orig_width, orig_height = image.size
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word_positions = []
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# Ensure number of slices does not exceed image height
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num_slices = min(num_slices, orig_height)
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strip_height = max(1, orig_height // num_slices)
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def process_strip(strip_id):
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strip_y = strip_id * strip_height
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strip = image.crop((0, strip_y, orig_width, strip_y + strip_height))
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strip_np = np.array(strip)
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detected_positions = []
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if ocr_engine == "CPU":
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ocr_data = pytesseract.image_to_data(strip, config='--psm 6 --oem 1', output_type=pytesseract.Output.DICT)
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for i in range(len(ocr_data['text'])):
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if re.search(rf"\b{word}\b", ocr_data['text'][i], re.IGNORECASE):
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x_scaled = int(ocr_data['left'][i])
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y_scaled = int(ocr_data['top'][i]) + strip_y
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w_scaled = int(ocr_data['width'][i])
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h_scaled = int(ocr_data['height'][i])
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detected_positions.append((x_scaled + offset_x, y_scaled + offset_y, w_scaled + (margin * 2), h_scaled + (margin * 2)))
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else:
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results = reader_gpu.readtext(strip_np)
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for (bbox, text, _) in results:
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if re.search(rf"\b{word}\b", text, re.IGNORECASE):
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(x_min, y_min), (x_max, y_max) = bbox[0], bbox[2]
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x_scaled = int(x_min)
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y_scaled = int(y_min) + strip_y
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w_scaled = int(x_max - x_min)
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h_scaled = int(y_max - y_min)
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detected_positions.append((x_scaled + offset_x, y_scaled + offset_y, w_scaled + (margin * 2), h_scaled + (margin * 2)))
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return detected_positions
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with concurrent.futures.ThreadPoolExecutor(max_workers=num_slices) as executor:
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strip_results = list(executor.map(process_strip, range(num_slices)))
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for strip_result in strip_results:
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word_positions.extend(strip_result)
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return word_positions
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except Exception as e:
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print(f"[ERROR] Failed to capture OCR region: {e}")
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return []
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def draw_identification_boxes(region_id, positions, color=(0, 0, 255), thickness=2):
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"""
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Draws non-interactive rectangles at specified positions within the given OCR region.
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Uses a separate rendering thread to prevent blocking OCR processing.
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"""
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collector_mutex.lock()
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if region_id in regions and 'widget' in regions[region_id]:
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widget = regions[region_id]['widget']
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widget.update_draw_positions(positions, color, thickness)
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collector_mutex.unlock()
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def update_region_slices(region_id, num_slices):
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"""
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Updates the number of visual slices in the OCR region.
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"""
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collector_mutex.lock()
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if region_id in regions and 'widget' in regions[region_id]:
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widget = regions[region_id]['widget']
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widget.set_num_slices(num_slices)
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collector_mutex.unlock()
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class OCRRegionWidget(QWidget):
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def __init__(self, x, y, w, h, region_id, color, thickness):
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super().__init__()
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self.setGeometry(x, y, w, h)
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self.setWindowFlags(Qt.FramelessWindowHint | Qt.WindowStaysOnTopHint | Qt.Tool)
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self.setAttribute(Qt.WA_TranslucentBackground, True)
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self.setAttribute(Qt.WA_TransparentForMouseEvents, False)
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self.region_id = region_id
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self.box_color = QColor(*color)
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self.line_thickness = thickness
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self.draw_positions = []
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self.previous_positions = [] # This prevents redundant redraws
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self.num_slices = 1 # Ensures slice count is initialized
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self.show()
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def paintEvent(self, event):
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painter = QPainter(self)
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pen = QPen(self.box_color)
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pen.setWidth(self.line_thickness)
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painter.setPen(pen)
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# Draw main rectangle
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painter.drawRect(0, 0, self.width(), self.height())
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# Draw detected word overlays
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for x, y, w, h in self.draw_positions:
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painter.drawRect(x, y, w, h)
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# Draw faint slice division lines
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if self.num_slices > 1:
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strip_height = self.height() // self.num_slices
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pen.setColor(QColor(150, 150, 150, 100)) # Light gray, semi-transparent
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pen.setWidth(1)
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painter.setPen(pen)
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for i in range(1, self.num_slices): # Do not draw the last one at the bottom
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painter.drawLine(0, i * strip_height, self.width(), i * strip_height)
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def set_draw_positions(self, positions, color, thickness):
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"""
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Updates the overlay positions and visual settings.
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"""
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self.draw_positions = positions
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self.box_color = QColor(*color)
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self.line_thickness = thickness
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self.update()
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def update_draw_positions(self, positions, color, thickness):
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"""
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Updates the overlay positions and redraws only if the positions have changed.
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This prevents unnecessary flickering.
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"""
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if positions == self.previous_positions:
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return # No change, do not update
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self.previous_positions = positions # Store last known positions
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self.draw_positions = positions
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self.box_color = QColor(*color)
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self.line_thickness = thickness
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self.update() # Redraw only if needed
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def set_num_slices(self, num_slices):
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"""
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Updates the number of horizontal slices for visualization.
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"""
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self.num_slices = num_slices
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self.update()
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def _resize_handles(self):
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w, h = self.width(), self.height()
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return [
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QRect(0, 0, HANDLE_SIZE, HANDLE_SIZE), # Top-left
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QRect(w - HANDLE_SIZE, h - HANDLE_SIZE, HANDLE_SIZE, HANDLE_SIZE) # Bottom-right
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]
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def mousePressEvent(self, event):
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if event.button() == Qt.LeftButton:
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for i, handle in enumerate(self._resize_handles()):
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if handle.contains(event.pos()):
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self.selected_handle = i
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return
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self.drag_offset = event.pos()
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def mouseMoveEvent(self, event):
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if self.selected_handle is not None:
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w, h = self.width(), self.height()
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if self.selected_handle == 0: # Top-left
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new_w = w + (self.x() - event.globalX())
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new_h = h + (self.y() - event.globalY())
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new_x = event.globalX()
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new_y = event.globalY()
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if new_w < 20:
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new_w = 20
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if new_h < 20:
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new_h = 20
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self.setGeometry(new_x, new_y, new_w, new_h)
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elif self.selected_handle == 1: # Bottom-right
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new_w = event.globalX() - self.x()
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new_h = event.globalY() - self.y()
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if new_w < 20:
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new_w = 20
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if new_h < 20:
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new_h = 20
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self.setGeometry(self.x(), self.y(), new_w, new_h)
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collector_mutex.lock()
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if self.region_id in regions:
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regions[self.region_id]["bbox"] = [self.x(), self.y(), self.width(), self.height()]
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collector_mutex.unlock()
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self.update()
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elif self.drag_offset:
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new_x = event.globalX() - self.drag_offset.x()
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new_y = event.globalY() - self.drag_offset.y()
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self.move(new_x, new_y)
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collector_mutex.lock()
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if self.region_id in regions:
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regions[self.region_id]["bbox"] = [new_x, new_y, self.width(), self.height()]
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collector_mutex.unlock()
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