Solar images from high-resolution, ground-based telescopes are corrected for the blurring effects of atmospheric turbulence by adaptive optics and image restoration. Two classes of image restoration methods are regularly used today, those based on multi-frame blind deconvolution and those based on speckle interferometry. In a recently started project, we will compare and evaluate such methods for use with spectropolarimetric data from SST/CRISP. During this presentation, I will describe the two methods and our results so far.