I'm running a fairly simple function that should take two images (which I have taken via gphoto2) and display them to the user in a simple opencv gui. My program works well until the display command is reached. The displayed window itself is small with just a black screen, and at this point I believe the program stops running. I lose the ability to input to the pi in any way, and can only unplug/plug in the pi to restore function. I'm not sure why this is happening. Below is the function. There is a helper function I've commented out that serves to crop and resize the images; I got the same issue with and without calling that function. import cv2 import numpy as np def confirm_images(front_image, back_image): # front_image = auto_crop_and_resize(front_image) # back_image = auto_crop_and_resize(back_image) if front_image is None or back_image is None: print(f"Error processing images") return front_img = cv2.imread(front_image) back_img = cv2.imread(back_image) if front_img is None or back_img is None: print(f"Error: Could not load images.") return height = min(front_img.shape[0], back_img.shape[0]) front_img = cv2.resize(front_img, (int(height * 1.5), height)) back_img = cv2.resize(back_img, (int(height * 1.5), height)) combined_img = np.hstack((front_img, back_img)) cv2.imshow("Confirm Images (Front & Back)", combined_img) screen_width = 1920 screen_height = 1080 img_height, img_width = combined_img.shape[:2] x = int((screen_width - img_width) //4) y = int((screen_height - img_height) //4) cv2.moveWindow("Confirm Images (Front & Back)", 1, 1) print("Press **'y'** to confirm and proceed or **'n'** to retake images.") key = cv2.waitKey(0) cv2.destroyAllWindows() if key == ord('n'): print("Retaking images...") intake_process() else: print("Images confirmed.") Continue reading...
