Search results
Results From The WOW.Com Content Network
The most straightforward and a conventional technique for image restoration is deconvolution, which is performed in the frequency domain and after computing the Fourier transform of both the image and the PSF and undo the resolution loss caused by the blurring factors. Nowadays, photo restoration is done using digital tools and software to fix ...
The use of Richardson–Lucy deconvolution to recover a signal blurred by an impulse response function. The Richardson–Lucy algorithm, also known as Lucy–Richardson deconvolution, is an iterative procedure for recovering an underlying image that has been blurred by a known point spread function.
The restored image is predicted from a corrupted observation after training on a set of sample images .. A shrinkage (mapping) function () = =, (()) is directly modeled as a linear combination of radial basis function kernels, where is the shared precision parameter, denotes the (equidistant) kernel positions, and M is the number of Gaussian kernels.
Digital photograph restoration uses image editing techniques to remove undesired visible features, such as dirt, scratches, or signs of aging. People use raster graphics editors to repair digital images, or to add or replace torn or missing pieces of the physical photograph. Unwanted color casts are removed and the image's contrast or ...
The reconstruction of an image from the acquired data is an inverse problem. Often, it is not possible to exactly solve the inverse problem directly. In this case, a direct algorithm has to approximate the solution, which might cause visible reconstruction artifacts in the image. Iterative algorithms approach the correct solution using multiple ...
Image rectification is a transformation process used to project images onto a common image plane. This process has several degrees of freedom and there are many ...
He is known for developing image repair theory (originally called "Image Restoration") and for applying it to anecdotes in various real-world contexts. [5] He was the editor of the Journal of Communication from 2003 to 2005, and of Communication Studies from 2007 to 2009.
Locate and restore historic media; Improve the presentation of historic media files within articles; Whenever feasible, obtain and use original sources for illustration purposes - that is, sources from as near to the time of the event as possible.