On Windows, download a free program called IrfanView. Alex
On Wednesday, June 22, 2011, Amir Rouhi-Rmit <[email protected]> wrote: > When i use the below command > ffmpeg -i input.wmv -r 1 -s WxH -f image2 Img-%03d.Y > i will get three different output file for each image which the extensions > are Img-xxx.u and Img-xxx.v and Img-xxx.y > it seems that the command separate the picture of each frame to 3 plane y,u > and v. But i cant view them to see the result. are they correct or not? Can > you recommend a software for viewing this images with extensions *.y *.u and > *.v? > > But when i use the command: > ffmpeg -i input.wmv -r 1 -s WxH -f image2 -pic_fmt gray Img-%03d.Y > the result contains like previous command , for each image three planes with > *.y ,*.u and *.v which the size of *.u and *.v is 0. > how can i see the image of *.y resulted in this command and compare it with > previous one? size in both are same and hex editor shows same content but i > need to see the images. how to view them? > Tnx > > On Fri, Jun 17, 2011 at 8:37 PM, Stefano Sabatini > <[email protected]> wrote: > On date Thursday 2011-06-16 16:02:43 +1000, Amir Rouhi-Rmit encoded: >> I know that i can extract images of a video by ffmpeg as can be seen in >> below command: >> ffmpeg -i input.avi -r 1 -s WxH -f image2 Img-%03d.jpeg >> But what i want is a separated Y plane and cb and cr plane. can i i achieve >> this by ffmpeg? if yes pleas let me now how and if no do you suggest any >> idea? > > You may use the .Y raw image format: > ffmpeg -i input.avi -r 1 -s WxH -f image2 Img-%03d.Y > > to get separate .Y, .U, .V raw images. A possibly better solution > would be to use the lut filter, soon to be committed, and I suppose > you can achieve the same purpose using some of the MPlayer filters > wrapped by mp. > _______________________________________________ > Libav-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/libav-user > > > -- > Amir H. Rouhi > PhD Student/ CSIT RMIT University > Room: 14-09-04 > [email protected] > [email protected] > > _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
