read an image stored in RAM zeboard with sysgen and Simulink

Hello, I am a student and I am trying to make my final project studies regarding the implementation of a sytem of extaction and recognition of road signs on a Zedbaod platform http://store.digilentinc.com/zedboard-zynq-7000-arm-fpga-soc-development-board/ The image is captured by a treated OV7670 camera, http://www.elecfreaks.com/store/ov7670-camera-module-p-705.html I réusiir to store the image on the RAM Zedbaord, my problem is how I can play this for him applied treatment system genrator and Simulink. I work with matlab 2015a and Vivado2015.2 Could you help me please