1. Fix the black point You wil see the gray dissolving Clic for another illusion.

2. Compute the black points… Clic for another illusion.

3. Say loudly the color and not the word YELLOW BLUE ORANGE BLACK RED GREEN BROWN YELLOW RED ORANGE GREEN BLACK BLUE RED BROWN GREEN BLUE ORANGE Clic for another illusion.

4. FIX CAREFULLY THE CENTER AND MOVE YOUR HEAD FORWARD AND BACKWARD Clic for another illusion.

5. FOLLOW THE INSTRUCTIONS : 1.- SLOPE YOUR HEAD TO YOUR RIGHT SHOULDER 2.- APPROACH THE SCREEN ABOUT 15 cm 3.- WITHOUTMOVING YOUR HEAD CLIC ON THE MOUSE ====]]\\\\\///////*****<<<<<<<{}{}{}{}{}{}{}{}{}%%~~~~~~~~ ////////^^!~~~~~::---))))*****+++@@@@@@@@<%||||||@@@@@444 +=+=****&^"""""""}}}}}}}]]]]]]]<<<<<<<%{{{{{{===**++++** ***++++++++++++++?????????????/////////////%||||||@@@@@444+=+= ****&^"""""""}}}}}}}]]]]]]]<<<<<<<%////////^^!~~~~~::---))))***** +++@@@@@@@@<%||||||@@@@@444+=+=****&^"""""""}}}}}} }]]]]]]]<<<<<<<%////////^^!~~~~~::---))))*****+++@@@@@@@@ <%/%||||||@@@@@444+=+=****&^"""""""}}}}}}}]]]]]]]<<<<<<<% %{{{{{{===**++++*****++++++++++++++?????????????/////////////

6. Here are you!!...without illusion neither comments, Isn’t time to return to work?