Planar Scenes, Color Images, and Variation of the Light Intensity of a Single Source

These sequences contain images taken in the same conditions (as far as we could control the environement parameters), but the intensity of the light source which varies slowly from one image of a sequence to the next one.

A journal cover.

See the whole sequence , download it (tar of gzipped PPM images).
Sequence reference: c2_1l_li_s1
Images: im1 to im9 from darker to lighter (8 of them are shown here)
Scene: Journal cover.

Interior of a church.

See the whole sequence , download it (tar of gzipped PPM images).
Sequence reference: c2_1l_li_s2
Images: im1 to im16 from lighter to darker (8 of them are shown here)
Scene: Image of the interior of a church.