Linda, I think Bill might have been offering the clue that numbers bigger than 255 are not good or unpredictable for viewmat, or maybe not good for RGB.
On Mon, Jun 15, 2015 at 2:55 AM, Linda Alvord <[email protected]> wrote: > If you name the two images S and T: > > load 'viewmat' > N=:<.63.8*i.5 > MAGENTA=:(N,4#255),.((4#0),N),.N,4#255 > YELLOW=:(2#"1 ,.N,4#255) ,.(4#0),N > CYAN=:((4#0),N),.2#"1 ,.N,4#255 > A=:<.0.5*(i.9 9)+i.9 9 > S=:81 3$,><"1 (|.YELLOW)+"1/|.MAGENTA > S viewmat A;'S' > T=:81 3$,><"1 (|.CYAN)+"1/|.MAGENTA > T viewmat A;'T' > > S;T > > Each image is 9x9 array of colors. Look at thtop and left 5x5 corner of > T. You find a perfect face of the color cue which grades both cyan and > magenta correctly to form BLUE. > > In S, this does not happen! All goes well in 4X5 rows but the 5th row does > not provide the yellow correctly. It should end in RED. > > Any clues why not? > > Linda > > -- (B=) ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
