import matplotlib.pyplot as plt from PIL import Image import matplotlib.patches as patches # 加载图像 image_path = "demo_images/yidali.jpg" # 替换为实际图像路径 output_path = "output_image.jpg" # 设置保存路径 image = Image.open(image_path) # 边界框和类别数据 data = [ {"bbox_2d": [165, 198, 274, 350], "label": "curtain"}, {"bbox_2d": [138, 150, 305, 400], "label": "window"}, {"bbox_2d": [495, 181, 585, 408], "label": "window"}, {"bbox_2d": [263, 347, 500, 508], "label": "bicycle"}, {"bbox_2d": [101, 430, 235, 509], "label": "flowerpot"}, {"bbox_2d": [235, 400, 299, 487], "label": "flowerpot"}, {"bbox_2d": [359, 328, 408, 452], "label": "flowerpot"}, {"bbox_2d": [654, 376, 696, 428], "label": "flowerpot"}, {"bbox_2d": [689, 403, 711, 429], "label": "flowerpot"}, {"bbox_2d": [711, 399, 731, 425], "label": "flowerpot"}, {"bbox_2d": [731, 356, 759, 382], "label": "flowerpot"}, {"bbox_2d": [0, 402, 69, 552], "label": "flowerpot"} ] # 定义颜色 color_map = { "curtain": "#eb60b2", "window": "#4adde5", "bicycle": "#e3d820", "flowerpot": "#2adac0" } # 创建绘图 fig, ax = plt.subplots(1, figsize=(12, 8)) ax.imshow(image) # 绘制边界框 instance_count = {} for item in data: bbox = item["bbox_2d"] label = item["label"] # 计算颜色深度 if label not in instance_count: instance_count[label] = 0 color_depth = 1 - (instance_count[label] * 0.1) # 每个实例颜色变暗 base_color = color_map[label] color = base_color instance_count[label] += 1 # 绘制矩形 rect = patches.Rectangle( (bbox[0], bbox[1]), bbox[2] - bbox[0], bbox[3] - bbox[1], linewidth=4, edgecolor=color, facecolor="none" ) ax.add_patch(rect) # 添加标签 ax.text( bbox[0], bbox[1] - 10, label, color="white", fontsize=13, bbox=dict(facecolor=color, edgecolor="none", boxstyle="round,pad=0.2") ) # 隐藏坐标轴 ax.axis("off") # 保存结果 plt.savefig(output_path, bbox_inches="tight", pad_inches=0, dpi=300) plt.close() print(f"Image saved to {output_path}")