包含ImageSets(详细写出了train和val时用到的不同的图片)JPEGImages(17130张JPEG图片)Segmentation(12031张png标签图片)
VOC2007数据集有20个类:aeroplane, bicycle, bird, boat, bottle, bus, car, cat, chair, cow, diningtable, dog, horse, motorbike, person, pottedplant, sheep, sofa, train, tv/monitor。
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