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Download the Object Attributes

Annotations of object attributes are freely available for download ( no signing-in required ). The attributes are annotated and verified through Amazon Mechanical Turk.

Currently, we have 25 attributes for ~400 popular synsets available. Please click here to obtain the list of synsets available. For each synset, there are 25 images annotated with the following attributes:

  • Color: black, blue, brown, gray, green, orange, pink, red, violet, white, yellow
  • Pattern: spotted, striped
  • Shape: long, round, rectangular, square
  • Texture: furry, smooth, rough, shiny, metallic, vegetation, wooden, wet

For example:

Labeling procedure (for each image and each attribute):

  • Rather than labeling the entire image, we use the previously collected bounding box annotations to focus on just one part of the image which contains the object of interest.
  • We ask 3-4 workers to provide a binary label indicating whether the object contains the attribute or not.
  • If there is consensus among the workers, we assign the corresponding positive or negative label.
  • Otherwise, we label the attribute as ambiguous for this image.

This data was initially collected for

  • O. Russakovsky and L. Fei-Fei, Attribute Learning in Large-scale Datasets. Proceedings of the 12th European Conference of Computer Vision (ECCV), 1st International Workshop on Parts and Attributes. 2010. pdf | Bibtex | slides
How to download the attributes?
  • We have not yet released the attributes for all synsets. To check the list of synsets with attributes, please use the API: You can click here to obtain the synset names.
  • When you browse each individual synset ( e.g. Kit fox ), you can download the attributes if there is an icon "Download Attributes" below the image view panel.
  • You can download all the attributes available packaged in one file here. The API will return a Matlab (.mat) file. In the Matlab file, there will be a struct attrann which contains
    • A list of images,
    • A list of bounding boxes (bboxes), one per image. corresponding to the labeled objects. Each bounding boxes contains the fields x1, x2, y1, y2, all normalized to be between 0 and 1,
    • A list of attributes,
    • A matrix of labels of size (number of images) x (number of attributes). A label of 1 (or -1) indicates the presence (or absence) of the attribute, and a label of 0 indicates lack of consensus among the workers.
  • You can also use the following API to download the attributes of a particular synset:
    • http://www.image-net.org/api/download/imagenet.attributes.synset?wnid=[wnid]
    The returned Matlab (.mat) file is in the format described above.
  • You can download the extracted features here.
To learn more about download using HTTP protocol, please refer to API documentation.