Re: [Gimp-developer] Motion blur algorithms

[gg <gg catking net>]

On 07/13/12 21:09, Calculemus wrote:
> I need to implement motion blur(linear, radial and zoom )algorithms
> for an app I work on, like yours in GIMP.
>
> In the .c file for motion blur it is not stated which source is used
> for the math/algorithm.
>
> Someone knows the source, paper, book or whatever that was
> used as reference for implementing the motion blur algorithms?
>
> Thanks

Motion blur is convolution of the image with a straight line ; defocus 
blur with a filled circle. Deblurring is done by the inverse operation, 
deconvolution.

This can be done as multiplication in the freq domain using  FFT or 
convolution with a simple kernel image.

/gg