模板处理视频完成

test/homework/main.py

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+#模板匹配完成视频处理
+
+import cv2 as cv
+from tqdm import tqdm
+
+video_path='video.mp4'
+template_path='template.png'
+output_path='output.mp4'
+
+template = cv.imread(template_path, cv.IMREAD_GRAYSCALE)
+template_height, template_width = template.shape[:2]
+
+cap = cv.VideoCapture(video_path)
+
+frame_width = int(cap.get(cv.CAP_PROP_FRAME_WIDTH))
+frame_height = int(cap.get(cv.CAP_PROP_FRAME_HEIGHT))
+fps = cap.get(cv.CAP_PROP_FPS)
+total_frames = int(cap.get(cv.CAP_PROP_FRAME_COUNT))
+fourcc = cv.VideoWriter_fourcc(*'mp4v')
+
+out = cv.VideoWriter(output_path, fourcc, fps, (frame_width, frame_height))
+
+with tqdm(total=total_frames,desc="视频处理中：",unit="帧") as pbar:
+    while True:
+        ret, frame = cap.read()
+        if not ret:
+            break
+
+        gray_frame = cv.cvtColor(frame, cv.COLOR_BGR2GRAY)
+
+        result= cv.matchTemplate(gray_frame, template, cv.TM_CCOEFF_NORMED)
+        min_val, max_val, min_loc, max_loc = cv.minMaxLoc(result)
+
+        threshold = 0.8
+        if max_val >= threshold:
+            top_left = max_loc
+            bottom_right = (top_left[0] + template_width, top_left[1] + template_height)
+
+            cv.rectangle(frame, top_left, bottom_right, (0, 0, 255), 2)
+
+        out.write(frame)
+        pbar.update(1)
+
+cap.release()
+out.release()