Re: "transition" blending adjacent blocks of gray

>How can I take a 100x100 light gray square, overlap it by 20 pixels with
>a 100x100 dark gray square, and have a smooth transition between the two
>shades of gray.  I don't want the 20x100 pixel transition to be medium
>gray, I want it to smoothly transistion from light to dark gray.



convert -size 100x100 xc:"gray(25%)" gray1.png
convert -size 100x100 xc:"gray(75%)" gray2.png

convert gray1.png[80x100+0+0] \( -size 100x20 
gradient:"gray(75%)-gray(25%)" -rotate 90 \) gray2.png[80x100+0+0] 
+append gray_gradient.png