app.py
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import cv2 import numpy as np import os import time import random def horizontal_scroll(img, i): width = img.shape[1] i = i % width l = img[:, :i] r = img[:, i:] return np.hstack((r, l)) def vertical_scroll(img, i): height = img.shape[0] i = i % height t = img[:i, :] b = img[i:, :] return np.vstack((b, t)) def rotate_image(img, i): angle = i % 360 center = (img.shape[1] // 2, img.shape[0] // 2) rot_mat = cv2.getRotationMatrix2D(center, angle, 1.0) return cv2.warpAffine(img, rot_mat, (img.shape[1], img.shape[0])) def zoom_image(img, i): zoom_factor = 1 + 0.5 * np.sin(i / 20.0) center = (img.shape[1] // 2, img.shape[0] // 2) M = cv2.getRotationMatrix2D(center, 0, zoom_factor) zoomed = cv2.warpAffine(img, M, (img.shape[1], img.shape[0])) return zoomed def fade_image(img, i): alpha = 0.5 + 0.5 * np.sin(i / 20.0) faded = cv2.convertScaleAbs(img, alpha=alpha) return faded def get_image_files(directory): supported_exts = ['.jpg', '.jpeg', '.png', '.bmp'] return [f for f in os.listdir(directory) if os.path.isfile(f) and os.path.splitext(f)[1].lower() in supported_exts] if __name__ == "__main__": animations = [horizontal_scroll, vertical_scroll, rotate_image, zoom_image, fade_image] image_files = get_image_files(".") if not image_files: print("No image files found in the current directory.") exit() for filename in image_files: img = cv2.imread(filename) if img is None: print(f"Error reading {filename}. Skipping...") continue animation_fn = random.choice(animations) i = 0 start_time = time.time() while True: i += 1 frame = animation_fn(img, i) cv2.imshow("Image Slideshow", frame) key = cv2.waitKey(10) & 0xFF if key == ord('q'): cv2.destroyAllWindows() exit() # Show animation for 3 seconds if time.time() - start_time > 3: break cv2.destroyAllWindows() |
