117 lines
4.5 KiB
Python
117 lines
4.5 KiB
Python
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import cv2
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import os
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import shutil
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import numpy as np
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from ultralytics import YOLO
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IMG_EXTENSIONS = {'.jpg', '.jpeg', '.png', '.bmp', '.tif', '.tiff', '.webp'}
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def process_obb_images(
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model_path,
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image_dir,
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large_angle_output_dir="./large_angle_images", # 新增：大角度图像保存目录
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conf_thresh=0.15,
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imgsz=640,
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angle_threshold_deg=10.0 # 夹角阈值：超过即视为“大角度”
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):
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"""
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批量处理 OBB 图像，若任意两个目标的主方向夹角 > angle_threshold_deg，
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则将原图移动到 large_angle_output_dir。
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"""
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os.makedirs(large_angle_output_dir, exist_ok=True)
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results_dict = {}
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print("加载 YOLO 模型...")
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model = YOLO(model_path)
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print("✅ 模型加载完成")
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# 获取图像文件
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image_files = [f for f in os.listdir(image_dir) if os.path.splitext(f.lower())[1] in IMG_EXTENSIONS]
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if not image_files:
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print(f"❌ 未找到图像文件：{image_dir}")
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return results_dict
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print(f"发现 {len(image_files)} 张图像待处理")
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for img_filename in image_files:
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img_path = os.path.join(image_dir, img_filename)
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print(f"\n正在处理：{img_filename}")
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img = cv2.imread(img_path)
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if img is None:
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print(f"❌ 跳过：无法读取图像 {img_path}")
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continue
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# 推理 OBB
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results = model(img, save=False, imgsz=imgsz, conf=conf_thresh, mode='obb')
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result = results[0]
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# 提取旋转角
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boxes = result.obb
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angles_deg = []
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has_large_angle = False # 标记是否有大角度的目标
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if boxes is None or len(boxes) == 0:
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print("❌ 该图像中未检测到任何目标")
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else:
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for i, box in enumerate(boxes):
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cls = int(box.cls.cpu().numpy()[0])
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conf = box.conf.cpu().numpy()[0]
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cx, cy, w, h, r_rad = box.xywhr.cpu().numpy()[0]
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direction = r_rad if w >= h else r_rad + np.pi / 2
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direction = direction % np.pi
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angle_deg = np.degrees(direction)
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angles_deg.append(angle_deg)
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print(f" Box {i + 1}: Class={cls}, Conf={conf:.3f}, 主方向={angle_deg:.2f}°")
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# 计算两两夹角
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pairwise_angles_deg = []
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if len(angles_deg) >= 2:
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for i in range(len(angles_deg)):
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for j in range(i + 1, len(angles_deg)):
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diff_rad = abs(np.radians(angles_deg[i]) - np.radians(angles_deg[j]))
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min_diff_rad = min(diff_rad, np.pi - diff_rad)
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angle_diff_deg = np.degrees(min_diff_rad)
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pairwise_angles_deg.append(angle_diff_deg)
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print(f" Box {i + 1} 与 Box {j + 1} 夹角: {angle_diff_deg:.2f}°")
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if angle_diff_deg > angle_threshold_deg:
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has_large_angle = True
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elif len(angles_deg) == 1:
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print(" 仅检测到一个目标，无法计算夹角")
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# 保存结果
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results_dict[img_filename] = {
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"angles_deg": angles_deg,
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"pairwise_angles_deg": pairwise_angles_deg,
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"has_large_angle": has_large_angle
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}
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# 如果存在大角度，移动原图到新文件夹
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if has_large_angle:
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print(f"发现夹角 > {angle_threshold_deg}°，移动原图到大角度文件夹")
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shutil.move(img_path, os.path.join(large_angle_output_dir, img_filename))
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print(f"\n所有图像处理完成！大角度图像已移动至: {large_angle_output_dir}")
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return results_dict
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# ------------------- 测试调用 -------------------
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if __name__ == "__main__":
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MODEL_PATH = r'/home/hx/yolo/ultralytics_yolo11-main/runs/train/exp_obb_new3/weights/best.pt'
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IMAGE_SOURCE_DIR = r"/media/hx/04e879fa-d697-4b02-ac7e-a4148876ebb0/dataset/1/ready"
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LARGE_ANGLE_DIR = "/media/hx/04e879fa-d697-4b02-ac7e-a4148876ebb0/dataset/1/large_angle_images" # 新增输出目录
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results = process_obb_images(
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model_path=MODEL_PATH,
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image_dir=IMAGE_SOURCE_DIR,
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large_angle_output_dir=LARGE_ANGLE_DIR,
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conf_thresh=0.15,
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imgsz=640,
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angle_threshold_deg=10.0
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)
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# 可选：打印大角度图像
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large_angle_imgs = [name for name, info in results.items() if info["has_large_angle"]]
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print(f"\n共 {len(large_angle_imgs)} 张图像包含 >10° 的夹角：")
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for name in large_angle_imgs:
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print(f" - {name}")
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