Thanks for your replay;
I don't use BRAM for storing my image and I need some help for the DDR.
By searching, I find these XMD commands:
1. Under EDK, start the EDK shell and type xmd.
2. In XMD type dow -data myfile.dat 0x<DDR starting address> to download the file in the DDR starting address.
3. If you want, verify that all data are written in DDR, by typing in XMD mrd 0x<DDR address> to check the data.
4. Download your design normally through EDK. If everything is ok, then your design will use the data that are already written in DDR.
I find some ambiguity in the step2 for the file to download to the DDR, I have to set directly the jpg image or a file that contain all the pixels values ?
Thinks,