网站seo李守洪排名大师,工商登记注册网,代运营有哪些套路坑,海南住房建设厅网站问题描述 代码中#xff0c;创建了一个opencv的Mat图像(并打印了所有的像素值)#xff0c;然后通过vxCreateImageFromHandle函数将Mat图像转为了vx_image图像(通过映射的方式打印了所有的像素值#xff0c;通过日志可以看出与之前打印相同)。然后创建graph#xff0c;将其作…问题描述 代码中创建了一个opencv的Mat图像(并打印了所有的像素值)然后通过vxCreateImageFromHandle函数将Mat图像转为了vx_image图像(通过映射的方式打印了所有的像素值通过日志可以看出与之前打印相同)。然后创建graph将其作为vxNotNode的输入运行图之后将vxNotNode节点的输出图像进行映射打印。按理说打印的像素值应该是输入图像的取反图像(即输出像素值255-输入像素值)然而事实并非如此该问题应该如何解决 代码
void show_image_all_pixel(vx_image in_img)
{vx_uint32 width;vx_uint32 height;vxQueryImage(in_img, (vx_enum)VX_IMAGE_WIDTH, width, sizeof(vx_uint32));vxQueryImage(in_img, (vx_enum)VX_IMAGE_HEIGHT, height, sizeof(vx_uint32));vx_map_id map_id_in;vx_rectangle_t rect_in {0, 0, width, height};vx_imagepatch_addressing_t map_addr_in;vx_uint8* map_ptr_in;vxMapImagePatch(in_img, rect_in, 0, map_id_in, map_addr_in, (void **)map_ptr_in, VX_READ_ONLY, VX_MEMORY_TYPE_HOST, VX_NOGAP_X);printf(/************************************打印图像像素值************************************/\n);volatile vx_uint32 i,j,k;ijk0;for(volatile vx_uint32 y 0; y map_addr_in.dim_y; ymap_addr_in.step_y){j (map_addr_in.stride_y*y*map_addr_in.scale_y)/VX_SCALE_UNITY;for (volatile vx_uint32 x 0; x map_addr_in.dim_x; xmap_addr_in.step_x){i j (map_addr_in.stride_x*x*map_addr_in.scale_x)/VX_SCALE_UNITY;k;if (0 k%width){printf(%u\n, *(map_ptr_ini));}else{printf(%u, , *(map_ptr_ini));}}}printf(/************************************打印图像像素值结束************************************/\n);vxUnmapImagePatch(in_img, map_id_in);
}void main(void)
{vx_uint32 width 16;vx_uint32 height 5;// 创建opencv图像Mat img(height,width,CV_8UC1,Scalar(0));img(Range(1,5), Range(1,5)) Scalar(255);printf(opencv创建图像(高*宽*通道数)%d*%d*%d\n, img.rows, img.cols, img.channels());cout img.elemSize(): img.elemSize() endl;cout img.elemSize1(): img.elemSize1() endl;cout img.step: img.step endl;cout img.step1(): img.step1() endl;imwrite(pics/inImg_cvSave.bmp, img);// 打印opencv创建的图像的所有像素cout ---------------------------------打印opencv创建的图像的所有像素--------------------------------- endl;int tt0;for (int i0; i(int)height; i){for(int j0; j(int)width; j){tt;if (0 tt%width){cout img.atuchar(i,j) endl;}else{cout (int)img.atuchar(i,j) , ;}}}// 利用opencv图像信息配置openvx图像地址结构vx_imagepatch_addressing_t addr;addr.dim_x width;addr.dim_y height;addr.stride_x (vx_uint32)img.elemSize();addr.stride_y (vx_uint32)img.step;addr.step_x 1;addr.step_y 1;addr.scale_x VX_SCALE_UNITY;addr.scale_y VX_SCALE_UNITY;void* ptr img.data;// 创建上下文输入图像vx_context context vxCreateContext();ERROR_CHECK_OBJECT(context);vx_image in_img;vx_status status VX_SUCCESS;// 从句柄中导入输入图像打印图像属性openvx图像地址结构in_img vxCreateImageFromHandle(context, VX_DF_IMAGE_U8, addr, ptr, VX_MEMORY_TYPE_HOST);cout ---------------------------------打印vxCreateImageFromHandle创建的图像的所有像素--------------------------------- endl;show_image_all_pixel(in_img);// 创建图创建输出图像vx_graph graph vxCreateGraph(context);vx_image out_img vxCreateImage(context, width, height, VX_DF_IMAGE_U8);// 创建节点vx_node n0 vxNotNode(graph, in_img, out_img);// 验证图保存图结构status vxVerifyGraph(graph);// 调度图status vxScheduleGraph(graph);status vxWaitGraph(graph);if (VX_SUCCESS status){cout ---------------------------------打印vxNotNode输出图像的所有像素--------------------------------- endl;show_image_all_pixel(out_img);}// 释放资源vxReleaseImage(in_img);vxReleaseImage(out_img);vxReleaseNode(n0);vxReleaseGraph(graph);vxReleaseContext(context);
}
日志
APP: Init ... !!!
MEM: Init ... !!!
MEM: Initialized DMA HEAP (fd4) !!!
MEM: Init ... Done !!!
IPC: Init ... !!!
IPC: Init ... Done !!!
REMOTE_SERVICE: Init ... !!!
REMOTE_SERVICE: Init ... Done !!!30433.712534 s: GTC Frequency 200 MHz
APP: Init ... Done !!!30433.712892 s: VX_ZONE_INIT:Enabled30433.712904 s: VX_ZONE_ERROR:Enabled30433.712948 s: VX_ZONE_WARNING:Enabled30433.713889 s: VX_ZONE_INIT:[tivxInitLocal:130] Initialization Done !!!30433.715078 s: VX_ZONE_INIT:[tivxHostInitLocal:93] Initialization Done for HOST !!!
/************************************打印Target使能情况************************************/
TIVX_TARGET_A72_0 Enable: YES
TIVX_TARGET_A72_1 Enable: YES
TIVX_TARGET_A72_2 Enable: YES
TIVX_TARGET_A72_3 Enable: YES
TIVX_TARGET_DSP1 Enable: YES
TIVX_TARGET_DSP2 Enable: YES
TIVX_TARGET_DSP_C7_1 Enable: YES
/************************************打印Target使能情况结束************************************/
opencv创建图像(高*宽*通道数)5*16*1
img.elemSize(): 1
img.elemSize1(): 1
img.step: 16
img.step1(): 16
---------------------------------打印opencv创建的图像的所有像素---------------------------------
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
---------------------------------打印vxCreateImageFromHandle创建的图像的所有像素---------------------------------
/************************************打印图像像素值************************************/
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
0, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
0, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
0, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
0, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
/************************************打印图像像素值结束************************************/
---------------------------------打印vxNotNode输出图像的所有像素---------------------------------
/************************************打印图像像素值************************************/
90, 30, 1, 1, 22, 0, 0, 0, 33, 0, 0, 0, 44, 0, 0, 0
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
/************************************打印图像像素值结束************************************/30433.719841 s: VX_ZONE_INIT:[tivxHostDeInitLocal:107] De-Initialization Done for HOST !!!30433.724260 s: VX_ZONE_INIT:[tivxDeInitLocal:193] De-Initialization Done !!!
APP: Deinit ... !!!
REMOTE_SERVICE: Deinit ... !!!
REMOTE_SERVICE: Deinit ... Done !!!
IPC: Deinit ... !!!
IPC: DeInit ... Done !!!
MEM: Deinit ... !!!
DDR_SHARED_MEM: Allocs: 1 allocs of 80 bytes
DDR_SHARED_MEM: Frees : 1 frees of 80 bytes
DDR_SHARED_MEM: Opens : 0 allocs of 0 bytes
DDR_SHARED_MEM: Total size: 536870912 bytes
MEM: Deinit ... Done !!!
APP: Deinit ... Done !!!
