This is a repository of photographs and line drawings of six natural scene categories. There are three zip files: 1. CP_images.zip - the color photographs. The repository also contains a spreadsheet with the creative commons attributions of the images and the original name of the images on Flickr. 2. LD_images.zip - the line drawing images generated based on the photographs by trained artists at the Lotus Hill Institute. 3. LineDrawings_VectorData.zip - The vector data of the line draings, including a Matlab script to draw the vector data either into a Matlab figure or into an image matrix. These images have been used in a number of publications: Walther DB, Chai B, Caddigan E, Beck DM, & Fei-Fei L. (2011). Simple line drawings suffice for functional MRI decoding of natural scene categories, PNAS. 108(23): 9661-9666. [PDF][1] Walther DB. (2013). Using confusion matrices to estimate mutual information between two categorical measurements, Proceedings of the 3rd International Workshop on Pattern Recognition in NeuroImaging: 220-224. Philadelphia, PA. [PDF][2] Torralbo A, Walther DB, Chai B, Caddigan E, Fei-Fei L, Beck DM. (2013). Good Exemplars of Natural Scene Categories Elicit Clearer Patterns than Bad Exemplars but Not Greater BOLD Activity. PLoS ONE. 8(3): e58594. doi: 10.1371/journal.pone.0058594 or [PDF][3] Walther DB, & Shen D. (2014). Non-accidental properties underlie human categorization of complex natural scenes, Psychological Science, 25:851-860. Damiano C, & Walther DB. (2015). Content, not context, facilitates memory for real-world scenes. Visual Cognition, 23(7), 852-855.PDF Olivetti E, & Walther DB. (2015). A Bayesian Test for Comparing Classifier Errors, Proceedings of the 5th International Workshop on Pattern Recognition in NeuroImaging: 69-72, Stanford, CA. [PDF][4] O’Connell T, & Walther DB. (2015). Dissociation of salience-driven and content-driven spatial attention to scene category with predictive decoding of gaze patterns, Journal of Vision, 12(5):20, 1-13, [doi:10.1167/15.5.20][5] or [PDF][6] Berman D, Golomb JD, Walther DB. (2017). Scene content is predominantly conveyed by high spatial frequencies in scene-selective visual cortex. PLOS ONE 12(12): e0189828. [weblink][7] or [PDF][8] Choo H, & Walther DB. (2017). Modeling the Effect of Stimulus Perturbations on Error Correlations between Brain and Behavior, Proceedings of the 7th International Workshop on Pattern Recognition in NeuroImaging, Toronto, Canada. [PDF][9] Damiano, C, Wilder, J, & Walther DB. (2018). Mid-level feature contributions to category-specific gaze guidance. Attention, Perception, & Psychophysics. doi: https://doi.org/10.3758/s13414-018-1594-8. [PDF][10] Wilder, J, Dickinson, S, Jepson, A, & Walther DB. (2018). Spatial relationships between contours impact rapid scene classification. Journal of Vision. 18(8):1. doi: 10.1167/18.8.1. [PDF][11] Lowe, MX, Rajsic, J, Ferber, S, & Walther DB. (2018). Discriminating scene categories from brain activity within 100 ms. Cortex. [PDF][12] O’Connell, TP, Sederberg, PB, & Walther DB. (2018). Representational differences between line drawings and photographs of natural scenes: A dissociation between multi-voxel pattern analysis and repetition suppression. Neuropsychologia, 117: 513–519. [PDF][13] For a complete list of papers and reprints see: [http://bwlab.utoronto.ca/publications/][14] [1]: http://bwlab.utoronto.ca/wp-content/uploads/2014/10/walther_etal_pnas2011.pdf [2]: http://bwlab.utoronto.ca/wp-content/uploads/2014/10/walther_prni2013.pdf [3]: http://bwlab.utoronto.ca/wp-content/uploads/2014/10/journal.pone_.0058594.pdf [4]: http://bwlab.utoronto.ca/wp-content/uploads/2015/05/i1534-7362-15-5-20.pdf [5]: http://jov.arvojournals.org/Article.aspx?articleid=2288869 [6]: http://bwlab.utoronto.ca/wp-content/uploads/2015/05/i1534-7362-15-5-20.pdf [7]: https://doi.org/10.1371/journal.pone.0189828 [8]: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0189828&type=printable [9]: http://bwlab.utoronto.ca/wp-content/uploads/2016/03/ChooWalther_PRNI_2017.pdf [10]: https://rdcu.be/5Z9D [11]: http://bwlab.utoronto.ca/wp-content/uploads/2016/03/i1534-7362-18-8-1.pdf [12]: http://bwlab.utoronto.ca/wp-content/uploads/2016/03/Lowe_etal_Cortex_2018.pdf [13]: http://bwlab.utoronto.ca/wp-content/uploads/2016/03/OConnell_etal_Neuropsychologia_2018-1.pdf [14]: http://bwlab.utoronto.ca/publications/