Page 1 of 1
How to make an image transparent with gradient effect?
Posted: 2014-04-02T03:05:31-07:00
by bil80
I am not an expert in ImageMagick, and i want to make an image transparent with gradient effect as on Photoshop:
Transparency effect with Photoshop:
Re: How to make an image transparent with gradient effect?
Posted: 2014-04-02T03:37:21-07:00
by snibgo
Windows BAT syntax:
Code: Select all
convert ^
clooney.jpg ^
( +clone ^
-sparse-color barycentric "0,0,white %%[fx:w-1],0,white 0,%%[fx:h-1],black %%[fx:w-1],%%[fx:h-1],black" ^
) ^
-compose CopyOpacity -composite ^
c.png
Re: How to make an image transparent with gradient effect?
Posted: 2014-04-02T07:39:32-07:00
by bil80
Yes thanks a lot !
Re: How to make an image transparent with gradient effect?
Posted: 2014-04-02T18:25:57-07:00
by snibgo
My solution was over-complex. I had forgotten that barycentric can work with just two coordinates:
Code: Select all
convert ^
clooney.jpg ^
( +clone ^
-sparse-color barycentric "0,0,white 0,%%[fx:h-1],black" ^
) ^
-compose CopyOpacity -composite ^
c.png