Integral resolution of the turbulent atmosphere–telescope optical system has been studied for various methods of postdetection processing of short–exposure images. The Labeyrie and Knox–Thompson methods of image processing as well as the method of triple correlation of the image intensity have been investigated. The integral resolution has been computed in terms of the optical transfer function of the turbulent atmosphere and telescope for corresponding image processing method. Knowledge of the system integral resolution allows us to estimate the minimum resolvable distance in observations made through the turbulent atmosphere. All investigated methods are shown to give close results in that parameter better than the results obtained in recording of average images. The method of triple correlation of the image intensity gives the maximum resolution, whereas the Knox–Thompson method gives the minimum one.