--- ray/src/px/aedimage.c	1990/01/05 17:52:49	1.6
+++ ray/src/px/aedimage.c	1990/11/07 13:10:27	1.8
@@ -400,7 +400,7 @@ register rgbpixel  *l3;
 							/* read scanline */
 	getscan(y);
 							/* convert scanline */
-	normcolrs(scanline, xmax);
+	normcolrs(scanline, xmax, 0);
 	for (i = 0; i < xmax; i++) {
 		l3[i].r = scanline[i][RED];
 		l3[i].g = scanline[i][GRN];
@@ -515,7 +515,7 @@ colormap  map;
 	register int  i, val;
 
 	for (i = 0; i < 256; i++) {
-		val = pow(i/256.0, 1.0/GAMMA) * 256.0;
+		val = pow((i+0.5)/256.0, 1.0/GAMMA) * 256.0;
 		map[0][i] = map[1][i] = map[2][i] = val;
 	}
 }