Gallery Picture Sale
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35 square pictures
open to the public in the atrium of the University of Applied Sciences Northwestern Switzerland
Klosterzelgstrasse 2, 5210 Windisch
(just a few steps south from the train station in Brugg),
One of a kind, limited, numbered, and signed special editions
(using a special printing process that is true to colour and light, backed by a metal sheet)
by Jürg Nänni with some pictorial ideas from the blelb team
CHF 1000.– per picture (excluding shipping and V.A.T.)
For questions and orders (indicate the picture number), please contact:
Heer Druck AG, Steinackerstr. 8, 8583 Sulgen
Telephone: (071) 644 91 82, Fax: (071) 644 91 90, E-Mail:
The Viewers are the Doers
In the first seventeen pictures, the physical eye would see the same blue, yellow, red and black, and also the same pre-determined geometric pattern. All the colour and geometric changes happen in the viewers' heads. The proximity of the individual pictorial elements and the varying dimensions of those elements cause colour deceptions. We do not perceive colour independent of its context. It always depends on the proximity of a colour and how a particular pictorial element fits in with a larger section of the picture. The colours of the viewed subsystem are balanced once more in the cerebral cortex. Basically, the colour scheme of our perception is a complex process with several processing steps. The results are not at all clearly defined, but depend on the reading habits and pictorial experience of the individual person. Normally, people see, what they are used to seeing. The viewer actively participates when he or she 'reads' a picture. They are the doers.
Pictures 18 through 35 go beyond Pointillism and the related phenomena of simultaneous contrast and additive colour blending. Complex, perceptive effects start to appear even with simple forms such as bands, large squares, circles, cubes, and cylinders.
How to move in the gallery
Begin with Picture Number 1. By clicking on the arrows below the pictures, you can navigate through the gallery. You can also scroll with your mouse. When you move you mouse cursor over a question mark, you will learn more about that picture. A click next to the picture will cause the pop-up text to disappear.
Number 1 – Local and Global Colour Effects
Number 2 – The Assimilation Effect or the Bezold Effect
Number 3 – Variations of the Sequence Red, Yellow, Blue, White I
Number 4 – Variations of the Sequence Red, Yellow, Blue, White II
Number 5 – Sliding Colour I
Number 6 – Sliding Colour II
Number 7 – Sliding Colour III
Number 8 – Running Colour IV
Number 9 – Small Cause, Big Effect I
Number 10 – Small Cause, Big Effect II
Number 11 – Small Cause, Big Effect III
Number 12 – Small Cause, Big Effect IV
Number 13 – Pointillism with Quadratic Elements I
Number 14 – Pointillism with Quadratic Elements II
Number 15 – Pointillism with Quadratic Elements III
Number 16 – Pointillism with Quadratic Elements IV
Number 17 – Pointillism with Quadratic Elements V
Number 18 – Warp and Woof I
Number 19 – Warp and Woof II
Number 20 – Warp and Woof III
Number 21 – Warp and Woof IV
Number 22 – Neon Effects I
Number 23 – Neon Effects II
Number 24 – Neon Effects III
Number 25 – Neon Effects IV
Number 26 – Apparent Edges and the Neon Effect
Number 27 – Apparent Edges
Number 28 – Reconstruction of a Room I
Number 29 – Reconstruction of a Room II
Number 30 – Reconstruction of a Room III
Number 31 – Reconstruction of a Room IV
Number 32 – Reconstruction of a Room V
Number 33 – A Game with Strips of Scotch Tape
Number 34 – A Chessboard with a Four-Colour System
Number 35 – Colourful Angles
