The workshop brings together the community working on a specific image type of Big Data. Image Big Data have characteristics that can be leveraged in tackling the overarching challenges of Big Data. The workshop would be of interest to all scientific areas that conduct their domain-specific science by (a) acquiring images via measurement instruments that form raster data (e.g., microscopes, video cameras, scanners or telescopes), and (b) analyzing large volumes of image data to discover spatial, temporal and spectral relationships that require large global and precise local information. These scientific areas include cell biology, medical imaging, material science, chemistry, forensic, digital humanities, social science, Earth science, astronomy and physics just to name a few. The workshop focus is also aligned with the national priorities of several federal agencies presented in a white house release from March 2012.