如何从stm32中获取图片的像素？

以下是LCD显示所指向的地址，
#define FSMC_LCD_ADDRESS    0x64000002
当摄像头获取图片之后，通过DMA将数据传输至此处，
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;    GPIO_Init(GPIOA, &GPIO_InitStructure);
  /* D5,DCMI_VSYNC(PB6/7) */  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;    GPIO_Init(GPIOB, &GPIO_InitStructure);   /* D0..D4(PC6/7/8/9/11) */  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 |                                 GPIO_Pin_9 | GPIO_Pin_11;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;    GPIO_Init(GPIOC, &GPIO_InitStructure);
  /* D6,D7(PE5/6) */  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;    GPIO_Init(GPIOE, &GPIO_InitStructure);
    /* DCMI configuration *******************************************************/   DCMI_InitStructure.DCMI_CaptureMode = DCMI_CaptureMode_Continuous;  DCMI_InitStructure.DCMI_SynchroMode = DCMI_SynchroMode_Hardware;  DCMI_InitStructure.DCMI_PCKPolarity = DCMI_PCKPolarity_Rising;  DCMI_InitStructure.DCMI_VSPolarity = DCMI_VSPolarity_High;  DCMI_InitStructure.DCMI_HSPolarity = DCMI_HSPolarity_High;  DCMI_InitStructure.DCMI_CaptureRate = DCMI_CaptureRate_All_Frame;  DCMI_InitStructure.DCMI_ExtendedDataMode = DCMI_ExtendedDataMode_8b;    DCMI_Init(&DCMI_InitStructure);
  /* Configures the DMA2 to transfer Data from DCMI to the LCD ****************/  /* Enable DMA2 clock */  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);      /* DMA2 Stream1 Configuration */    DMA_DeInit(DMA2_Stream1);
  DMA_InitStructure.DMA_Channel = DMA_Channel_1;  
  DMA_InitStructure.DMA_PeripheralBaseAddr = DCMI_DR_ADDRESS;    //此处是DMA的目的地址  DMA_InitStructure.DMA_Memory0BaseAddr = FSMC_LCD_ADDRESS;       DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
  DMA_InitStructure.DMA_BufferSize = 1;  //与串口数据大小一样  DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;//外设地址增模式关闭  DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;//存储器地址增模式关闭  DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;//摄像头数据寄存器大小为1个字  DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;//液晶显示屏数据大小为半个字  DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;//循环模式可传输连续的数据流  DMA_InitStructure.DMA_Priority = DMA_Priority_High;  DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;           DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full;  DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;  DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;       DMA_Init(DMA2_Stream1, &DMA_InitStructure);
请问如何才能将存在给地址的图片的数据取出呢？
通过指针吗？该怎么写呢？