Experiment 2 texture scrambles.

<p>Here we show example textures for each model tested in Experiment 2: RND, ICA, L2, LP, IPS, GPS, and MEC16. Both <b>A</b> and <b>B</b> are scrambled versions of the corresponding model stimuli shown in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1002873#pcbi-1002873-g004" target="_blank">Figure 4</a>. On any single trial the observer viewed only one texture based on natural image samples and one texture based on samples from a single model. <b>A.</b> Global scrambles, where the pixels of each texture were scrambled as a final post-processing step. <b>B.</b> Sample scrambles, where the pixels of each image patch were scrambled individually to preserve variations in luminance histograms across samples.