Simulation gives good results, but our HST data do not. Also, better software for dithered image processing may be needed. Conclusion Image processing techniques do help to extract information from HST images. MEM and MLM can be used for deconvolution. The method subtraction and filtering can be used to detect changes between images.
More experiments using the method edge detection and morphological processing are necessary.
For the sophisticated method dithering to succeed, every effort should be made to achieve the nominal pointing accuracy of the HST, 3milliarcseconds. At least two observations must be made at each position to increase SNR and facilitate cosmic ray removal.