ImageMagick & sepia

[Nutter]

Does anyone know what version of ImageMagick the sepia-tone option was introduced?

And is there a way to convert to sepia without using the sepia-tone option for versions that don't support it? Maybe something like convert to grayscale and then overlay it with brown.

[limbo]

Not sure about your first question - never used imageMagik - however it's pretty easy to simulate sepia effect using most image manipulation apps.

Something along these lines will get you close

> select you image layer
> drop saturation to 0 (this keeps the colour model the same - using greyscale won't allow addition of the sepia tone)
> add another layer
> fill the layer with an orangey brown
> set the layer to 'multiply' or 'screen'
> change layer opacity (10-30%?)
> and lastly edit the light levels of your image layer to enhance areas of contrast.

- tinkering with the layers settings might be necessary to get the effect just right