chore: import upstream snapshot with attribution

2026-07-13 12:06:04 +08:00
commit 86c9b1c39f
7743 changed files with 3316339 additions and 0 deletions
@@ -0,0 +1,52 @@
+import cv2 as cv
+import numpy as np
+
+def main(filename):
+    ## [write_animation]
+    if filename == "animated_image.webp":
+        # Create an Animation instance to save
+        animation_to_save = cv.Animation()
+
+        # Generate a base image with a specific color
+        image = np.full((128, 256, 4), (150, 150, 150, 255), dtype=np.uint8)
+        duration = 200
+        frames = []
+        durations = []
+
+        # Populate frames and durations in the Animation object
+        for i in range(10):
+            frame = image.copy()
+            cv.putText(frame, f"Frame {i}", (30, 80), cv.FONT_HERSHEY_SIMPLEX, 1.5, (255, 100, 0, 255), 2)
+            frames.append(frame)
+            durations.append(duration)
+
+        animation_to_save.frames = frames
+        animation_to_save.durations = durations
+
+        # Write the animation to file
+        cv.imwriteanimation(filename, animation_to_save, [cv.IMWRITE_WEBP_QUALITY, 100])
+        ## [write_animation]
+
+    ## [init_animation]
+    animation = cv.Animation()
+    ## [init_animation]
+
+    ## [read_animation]
+    success, animation = cv.imreadanimation(filename)
+    if not success:
+        print("Failed to load animation frames")
+        return
+    ## [read_animation]
+
+    ## [show_animation]
+    while True:
+        for i, frame in enumerate(animation.frames):
+            cv.imshow("Animation", frame)
+            key_code = cv.waitKey(animation.durations[i])
+            if key_code == 27:  # Exit if 'Esc' key is pressed
+                return
+    ## [show_animation]
+
+if __name__ == "__main__":
+    import sys
+    main(sys.argv[1] if len(sys.argv) > 1 else "animated_image.webp")