1. An image processing method comprising: using a processor-based image acquisition device to acquire a main image of a scene and two or more further images approximately of a same scene within a time period; wherein said time period begins proximately before said acquiring of said main image and ends proximately after said acquiring of said main image; using one or more computing devices to perform the steps of: determining that a particular object in said main image has a defect; identifying two or more defect free objects, from the two or more further images, that correspond to the particular object; creating a corrective object that corresponds to the particular object by combining together said two or more defect free objects; performing a comparison between said particular object and said corrective object; and determining whether to initiate a further action based on said comparison.