Pyxel, a Python library for the automatic annotation of web photos

Pyxel is a Python library used in different projects of the Image Processing Group which aim at the automatic annotation of images. The library supports basic Bag of Words descriptors both for the visual and textual modalities.

Creators: Eva Mohedano, Xavier Giró-i-Nieto, Daniel Manchón, Amaia Salvador, Sergi Imedio, Irene Gris.

Pyxel is a Python library used in different projects of the Image Processing Group which aim at the automatic annotation of images. The library supports basic Bag of Words descriptors both for the visual and textual modalities. In the case of visual, SIFT descriptors are considered, while the textual modality aims at a classic TF-IDF descriptors. The automatic classification is achieved by training an SVM classifier. The library also includes a module to assess the quality of the results based on the precision and recall measures.

Source code: [Get Pyxel from Bitbucket]

Developer's guide (in Catalan): [PDF]

Irene Gris' BSc thesis (in Catalan): "Pyxel, una llibreria per a l'anotació automàtica de fotografies"