A single color is a triple of integers 0 to 255. There are four new colors. Two yellow and two blue. What are the four colors?
Linda -----Original Message----- From: Programming [mailto:[email protected]] On Behalf Of Raul Miller Sent: Monday, January 25, 2016 2:52 AM To: Programming forum Subject: Re: [Jprogramming] Monday Morning Wake Up Exercise You can replace Y with Y4 and B with Y4 in those two expressions: Y4=: 3%~+/"2 (0 0 0,0 1 1,1 1 2,:2 2 2){Y B4=: 3%~+/"2 (0 0 0,0 1 1,1 1 2,:2 2 2){B In other words, viewmat is interpolating linearly. (Pretend that the three colors in Y are on a line segment and then pick four points equal spaced apart with the two endpoints on the edges of that line segment. For the other two colors use a weighted average of the two surrounding colors with the weights being how close each point is to the corresponding color.) Thanks, -- Raul On Mon, Jan 25, 2016 at 2:26 AM, Linda A Alvord <[email protected]> wrote: > This code makes 8 images. What are the two middle colors in 'Y Four' and > the > two colors in 'B Four'? > > > > load 'viewmat' > > ]Y=:3 3$255 255 255 255 255 0 0 0 0 > > Y viewmat 0;'Y One' > > Y viewmat 0 1;'Y Two' > > Y viewmat 0 1 2;'Y Three' > > Y viewmat 0 1 2 3;'Y Four' > > ]B=:3 3$255 255 255 0 0 255 0 0 0 > > B viewmat 0;'B One' > > B viewmat 0 1;'B Two' > > B viewmat 0 1 2;'B Three' > > B viewmat 0 1 2 3;'B Four' > > > > Linda > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
