{
    raw_image = tivxCreateRawImage(context, &raw_params);
    output_img = vxCreateImage(context, width, height, VX_DF_IMAGE_NV12);
    vx_user_data_object config = (vx_user_data_object)vxGetObjectArrayItem(isp->viss_config, 0)

    graph = vxCreateGraph(context);
    isp->graph = graph;

    isp->viss_node = create_viss_node(graph,
                                             config,
                                             raw_image,
                                             NULL,
                                             NULL,
                                             output_img,
                                             NULL,
                                             NULL);

   

    SET_REFERENCE_NAME(isp->viss_node, VISS_NODE);

    vx_status status = vxSetNodeTarget(isp->viss_node, VX_TARGET_STRING, VISS_NODE_TARGET);
    failed = (status != VX_SUCCESS);
    if (failed)
    {
        goto release_objects;
    }


    vx_user_data_object trace_obj = get_trace_object(isp);
    isp->custom_node = create_custom_node(graph, config, raw_image, trace_obj);

    vxSetReferenceName((vx_reference)isp->custom_node, CUSTOM_NODE_NAME);
    vxSetNodeTarget(isp->custom_node, VX_TARGET_STRING, CUSTOM_NODE_TARGET);

    if (CHECK_REFERENCE(trace_obj))
    {
        vxReleaseUserDataObject(&trace_obj);
        if (failed)
        {
            printf("failed \n");
        }
    }

    ct_read_raw_image(raw_image, file_name, 2, downshift_bits);
    printf("debug 6_2\n");
    status = vxVerifyGraph(graph);
    if(status == VX_SUCCESS)
    {
        printf("verify graph success\n");
    }
    printf("verify graph");
    int num_bytes_io = 0;
    start = tivxPlatformGetTimeInUsecs();
    vxProcessGraph(graph);
    printf("process done");
    snprintf(yuv_image_fname, 100, "%s.yuv","out");
    printf("YUV file name %s \n", yuv_image_fname);
           num_bytes_io = write_output_image_nv12_8bit(yuv_image_fname, output_img);
           if(num_bytes_io < 0)
           {
                printf("Error writing to VISS NV12 file \n");
   
           }
    
    end = tivxPlatformGetTimeInUsecs();
    vxReleaseGraph(&graph);
    vxReleaseImage(&output_img);
    }