Abstract: An image processing method is operable in an image acquisition system comprising a camera arranged to capture successive images with a field of view, FOV of a portion of an environment surrounding a vehicle, the FOV intersecting a window of the vehicle comprising one or more heater elements that are visible within the FOV of the camera. The method comprises: obtaining an image; determining whether one or more sequences of pixels within the image corresponds to an image of a respective heater element, each pixel within the or each sequence of pixels having a colour and an intensity within respective thresholds; correcting, within the image, the or each sequence of pixels corresponding to a respective heater element by replacing pixel values for the or each sequence of pixels with pixel values derived from pixels which do not correspond with a heater element; and displaying the corrected image.