Image File as Input for multiple servo movement.

  1. read the image (SD Card?)

There doesn't really seem to be any place else to read it from.

  1. scan the image column per column

That would depend on the image format you are using, currently unspecified, and whether the data is stored row by row or column by column.

  1. take this as input for the servo moving routine

A black and white image will contain black and white. What do you want the servo to do when the value is black? When the value is white?

A grayscale image would be a better choice, I think.

  1. move the servos.

Now, seriously, if you can't even figure out how to move a servo, you are in way over your head. 5 minutes looking at the examples should be enough for you to figure this out.

I bought my first Arduino today, six servos and my first single servo sweep worked! Arduino is fun.

Oh, wait. You already know how to move a servo, so why are you asking?