The Pictures By Category and Similarity (PICS) Database: A Database of 1200 Pictures from 20 Object Categories Rated for Similarity Using Multidimensional Scaling

We used multidimensional scaling (a technique used to model similarity) to develop a large dataset of 1200 object images from 20 categories. Our large, open-source database provides researchers with images organized using a continuous measure of similarity, and allows researchers to control the degree of similarity required among their stimuli.