Black and white photo is an interpretation of the original picture. To make the blind people understanding the photo, one has to abstract his mind from the lights and shadows, colors and especially from the perspective, leaving only the essential, the plot.
It is the same story, told in different way.
Tactile photo are transparent, made of polymer. Black grooves on the photo are the basis of the picture.
In addition, the visitors of the exhibition will be able to listen to an audio description of the photos, which will add more poetry and underline the main features on each photo.