1. A white balance method, comprising the steps of: capturing an entered image; dividing the entered image into a plurality of divided windows; performing a color white identification of each divided window to produce a color white identification result of each divided window; determining a weight of the color white identification result corresponding to each divided window according to a position of the each divided window in the entered image, and a continuity of the plurality of surrounding divided windows; using the color white identification result and the weight of the divided windows to calculate a white balance estimated value of the entered image; and using the white balance estimated value to perform a white balance process of the entered image; wherein the continuity defines a color temperature difference between each window and a plurality of surrounding divided windows lower than a default value.