Re: [Gimp-developer] Motion blur algorithms

2012-07-15 Thread Calculemus
So if I understand right, motion blur is just a convolution with a mask? For linear motion blur you create a line and maybe smooth it a bit. For zoom motion blur you need to calculate a different mask for each pixel. So you need a line drawing algorithm to create masks with lines rotated appropri

Re: [Gimp-developer] Motion blur algorithms

2012-07-14 Thread Jon Nordby
May I ask why you are not simply using GEGL as the backend for you application? It implements a large number of image processing operations (every one you've asked about so far) and is designed to be reusable. If there are issues which prevent you from using it we would love to hear about it so w

Re: [Gimp-developer] Motion blur algorithms

2012-07-13 Thread gfxuser
Hi Calcemus, Easy to find papers, hmm? Ok, I am a student and need your advice on this. Let's say I want to find a paper on an algorithm which I know what it does, and that is all. Where do I search? I am member at acm.org but usually they have very advanced papers. nearly eve

Re: [Gimp-developer] Motion blur algorithms

2012-07-13 Thread Partha Bagchi
On Fri, Jul 13, 2012 at 5:36 PM, Calculemus wrote: > Alexandre, but that paper is for motion blur for animation > sequences. I just need motion blur for 2D images. It has > two parameters, angle and displacement. > > ___ > gimp-developer-list mailing lis

Re: [Gimp-developer] Motion blur algorithms

2012-07-13 Thread Calculemus
Alexandre, but that paper is for motion blur for animation sequences. I just need motion blur for 2D images. It has two parameters, angle and displacement. ___ gimp-developer-list mailing list gimp-developer-list@gnome.org https://mail.gnome.org/mailman/l

Re: [Gimp-developer] Motion blur algorithms

2012-07-13 Thread Calculemus
Nope I am far from releasing :) Why GIMP? It is the only open source for this kinda thing I know. Easy to find papers, hmm? Ok, I am a student and need your advice on this. Let's say I want to find a paper on an algorithm which I know what it does, and that is all. Where do I search? I am member

Re: [Gimp-developer] Motion blur algorithms

2012-07-13 Thread gg
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

Re: [Gimp-developer] Motion blur algorithms

2012-07-13 Thread Alexandre Prokoudine
On Fri, Jul 13, 2012 at 11:09 PM, 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, pape

Re: [Gimp-developer] Motion blur algorithms

2012-07-13 Thread Guillermo Espertino (Gez)
On 13/07/12 16:09, Calculemus wrote: I need to implement motion blur(linear, radial and zoom )algorithms for an app I work on, like yours in GIMP. Hi Is your application free software? Please keep in mind that if you plan to publish your application and you re-use code from GIMP you have to ho

[Gimp-developer] Motion blur algorithms

2012-07-13 Thread Calculemus
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