BTF MAM2014 Dataset

This dataset consists of 16 BTF of materials presented at the Workshop on Material Appearance Modelling (MAM) 2014 (sample set No.26).

The BTF datasets consist of a collection of material images taken for thousands of lighting and viewing directions. Our data can be used for appearance rendering on arbitrary objects under arbitrary lighting and viewing conditions.

Angular sampling of 81 x 81 illumination and viewing directions is used. More technical details concerning BTF data angular sampling are available in the data description section.

The raw HDR data are tiled to get the smallest repeatable tile. The uncompressed tile HDR data (32-bit float) are stored in a binary format .big (big image group). The data are stored in CIE XYZ colorspace (observer 2 degrees, illuminant D65). A spatial resolution of the datasets is 353.3 dpi. For more detail refer to the paper below. User can use our API to query XYZ values of a specific pixel and captured combination of light and camera positions. The codes for reading from and writing to the format as well as a pixel query function are part of the API.