Transparent

[cafe_acapulco]

Hi,

I hope you can help me.

I have many files, hundreds of them, and I need to make them transparent using a shell script, but I couldn't find or achieve it.

I can do that by hand, step by step, for one image. What I did is:

display image1.ppm
Image Edit -> Matte
Method -> Replace
Fuzz -> 10%
Matte Value -> Transparent
Matte Value -> Dialog -> 65535

and select this color on the image and I got it, but how can I do this using a perlMagick shell script or anything else in order to do it automatically?

Thanks in advance

[cafe_acapulco]

Obviously then I save it and composite into an image as foreground .

thanks