URL
http://api.imgble.com/saturation|<value>/http://mydomain.com/myimage.jpg

Parameters
<value> is a number between zero (no change) and -100 (complete desaturation = grayscale), or it can be any positive number for increased saturation.

Example
http://api.imgble.com/saturation|-40/http://farm1.static.flickr.com/57/197881059_aeb724b1cf.jpg

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