The CAT dataset contains over 9,000 cat images with facial feature annotations. Each image has an annotation of a cat head with 9 points: 1 for the mouth, 2 for the eyes, and 6 for the ears. The dataset was released in 2008 and the paper is titled “Cat Head Detection – How to Effectively Exploit Shape and Texture Features"

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The annotation data is stored in a file named with the name of the corresponding image plus "cat" at the end. There is one annotation file for each cat image. For each annotation file, the annotation data is stored in the following order:

• Number of points (default is 9)
• Left Eye
• Right Eye
• Mouth
• Left ear - 1
• Left ear - 2
• Left ear - 3
• Right ear - 1
• Right ear - 2
• Right ear - 3