next up previous contents
Next: Digital Filters Up: Computational Methods Previous: Geometric Corrections

Image Manipulations

After the raw image data are calibrated into relative intensive values several operations may be applied to frames to enhance features which later should be studied. This involves manipulations with the Signal-to-Noise ratio (S/N), resolution, and coordinates of the images. Further, real but disturbing features may be removed to allow a better access to the objects of interest. The typical methods include digital filtering, coordinate transformations, and image restoration.


Petra Nass