bmcv_image_bitwise_or¶
两张大小相同的图片对应像素值进行按位或操作。
接口形式:
bm_status_t bmcv_image_bitwise_or( bm_handle_t handle, bm_image input1, bm_image input2, bm_image output);
参数说明:
bm_handle_t handle
输入参数。 bm_handle 句柄。
bm_image input1
输入参数。输入第一张图像的 bm_image,bm_image 需要外部调用 bmcv_image_create 创建。image 内存可以使用 bm_image_alloc_dev_mem 或者 bm_image_copy_host_to_device 来开辟新的内存,或者使用 bmcv_image_attach 来 attach 已有的内存。
bm_image input2
输入参数。输入第二张图像的 bm_image,bm_image 需要外部调用 bmcv_image_create 创建。image 内存可以使用 bm_image_alloc_dev_mem 或者 bm_image_copy_host_to_device 来开辟新的内存,或者使用 bmcv_image_attach 来 attach 已有的内存。
bm_image output
输出参数。输出 bm_image,bm_image 需要外部调用 bmcv_image_create 创建。image 内存可以通过 bm_image_alloc_dev_mem 来开辟新的内存,或者使用 bmcv_image_attach 来 attach 已有的内存。如果不主动分配将在 api 内部进行自行分配。
返回值说明:
BM_SUCCESS: 成功
其他:失败
格式支持:
该接口目前支持以下 image_format:
num |
image_format |
---|---|
1 |
FORMAT_BGR_PACKED |
2 |
FORMAT_BGR_PLANAR |
3 |
FORMAT_RGB_PACKED |
4 |
FORMAT_RGB_PLANAR |
5 |
FORMAT_RGBP_SEPARATE |
6 |
FORMAT_BGRP_SEPARATE |
7 |
FORMAT_GRAY |
8 |
FORMAT_YUV420P |
9 |
FORMAT_YUV422P |
10 |
FORMAT_YUV444P |
11 |
FORMAT_NV12 |
12 |
FORMAT_NV21 |
13 |
FORMAT_NV16 |
14 |
FORMAT_NV61 |
15 |
FORMAT_NV24 |
目前支持以下 data_type:
num |
data_type |
---|---|
1 |
DATA_TYPE_EXT_1N_BYTE |
注意事项:
1、在调用 bmcv_image_bitwise_or()之前必须确保输入的 image 内存已经申请。
2、input output 的 data_type,image_format必须相同。
代码示例:
int channel = 3; int width = 1920; int height = 1080; int dev_id = 0; bm_handle_t handle; bm_status_t dev_ret = bm_dev_request(&handle, dev_id); std::shared_ptr<unsigned char> src1_ptr( new unsigned char[channel * width * height], std::default_delete<unsigned char[]>()); std::shared_ptr<unsigned char> src2_ptr( new unsigned char[channel * width * height], std::default_delete<unsigned char[]>()); std::shared_ptr<unsigned char> res_ptr( new unsigned char[channel * width * height], std::default_delete<unsigned char[]>()); unsigned char * src1_data = src1_ptr.get(); unsigned char * src2_data = src2_ptr.get(); unsigned char * res_data = res_ptr.get(); for (int i = 0; i < channel * width * height; i++) { src1_data[i] = rand() % 255; src2_data[i] = rand() % 255; } // calculate res bm_image input1, input2, output; bm_image_create(handle, height, width, FORMAT_RGB_PLANAR, DATA_TYPE_EXT_1N_BYTE, &input1); bm_image_alloc_dev_mem(input1); bm_image_copy_host_to_device(input1, (void **)&src1_data); bm_image_create(handle, height, width, FORMAT_RGB_PLANAR, DATA_TYPE_EXT_1N_BYTE, &input2); bm_image_alloc_dev_mem(input2); bm_image_copy_host_to_device(input2, (void **)&src2_data); bm_image_create(handle, height, width, FORMAT_RGB_PLANAR, DATA_TYPE_EXT_1N_BYTE, &output); bm_image_alloc_dev_mem(output); if (BM_SUCCESS != bmcv_image_bitwise_or(handle, input1, input2, output)) { std::cout << "bmcv bitwise or error !!!" << std::endl; bm_image_destroy(input1); bm_image_destroy(input2); bm_image_destroy(output); bm_dev_free(handle); exit(-1); } bm_image_copy_device_to_host(output, (void **)&res_data); bm_image_destroy(input1); bm_image_destroy(input2); bm_image_destroy(output); bm_dev_free(handle);