1. A method for adjusting image acquisition parameters to optimize object extraction, comprising: an image extracting step, for extracting an image, the image having at least one target object characterized by forming a specific cluster in a color coordinate space after performing a coordinate projection, and thus the specific cluster contributing to a specific color model; a locating step, for locating the target object in the image; an image acquisition parameter calculating step, for applying the specific color model to obtain an image acquisition parameter according to color distribution features of the target object; an image transforming step, for transforming the image according to the adjusted image acquisition parameter so the color of the transformed target object matches the specific color model; and an object extracting step, for extracting the target object from the transformed image by applying the specific color model.