This database contains 10355 naturalistic textures (128 x 128 pixels) generated using a texture synthesis algorithm (Portilla & Simoncelli, 2000). Among them, 4170 images use textural parameters extracted from photographs of eight material categories (bark, sand, fabric, fur, leather, stone, water, and wood; an average of 521 images for each). The remaining 6185 images were generated using textural parameters interpolated from the 4170 images. For datails, plase see readme_en.txt.