= ycbcr2rgb =
== Syntax == :int ycbcr2rgb(int y, int cb, int cr, int z) == Arguments == :y ::Red value :cb ::Green value :cr ::Blue value :z ::Determines which value is returned. z=0 for red, z=1 for green, z=2 for blue == Return == :Returns the red, gree or blue value from 0 to 255 depending on the value of z == Description == :Lets you convert YCbCr values to RGB values. == Example == <code> %ffp ctl(0):"Y (Luminancy)",Range=(-255,255),val=0 ctl(1):"Cb (Chroma Blue)",Range=(-255,255),val=0 ctl(2):"Cr (Chroma Red)",Range=(-255,255),val=0 ForEveryTile:{ int r,g,b,i,cb,cr; for (y = y_start; y < y_end; y++) { if (updateProgress(y,y_end)) abort(); for (x = x_start; x < x_end; x++) { r = src(x,y,0); g = src(x,y,1); b = src(x,y,2); i = rgb2ycbcr(r,g,b,0); cb = rgb2ycbcr(r,g,b,1); cr = rgb2ycbcr(r,g,b,2); // Do the adjustment i = i + ctl(0); cb = cb + ctl(1); cr = cr + ctl(2); pset( x, y, 0, ycbcr2rgb(i,cb,cr,0) ); pset( x, y, 1, ycbcr2rgb(i,cb,cr,1) ); pset( x, y, 2, ycbcr2rgb(i,cb,cr,2) ); } } return true; }</code> == Also see == |