Restoration photonics

01- Images of the printed copies of picture taken with 20 spectral band pass filters Thorlabs(R) and white reference surface. To capture these images with camera CCD Retiga(R), the bandpass filters were used from 400 nm to 780 nm. In addition, for each image of the printed copies pictures, reference was made to an image of the 90% reference white (reflectance measured with the PR655 spectroradiometer), in order to make the irradiance homogeneous for each image. 02- Images processed with MatLab. Reflectance printed copies of picture. The reflectance values for each printed picture were obtained by processing with MatLab (R) the images obtained with the Retiga (R) camera. With the 20 images you get a spectral profile of each pixel of the painting whose size is 411x450 pixels. These values were used to know the sensitivity to light according to the color of each pixel, and thus develop a lighting system whose spectral profile was adequate to damage the work as little as possible. 03- Reflectance Graphics. 04- Block diagram work development