在C++中使用OpenCV将NV12格式的图像转换为RGB格式,可以按照以下步骤进行: 了解NV12和RGB的格式: NV12格式是一种YUV颜色空间格式,其中Y分量(亮度)是全分辨率的,而U和V分量(色度)是半分辨率且交错的。 RGB格式是一种颜色空间,其中每个像素由红(R)、绿(G)、蓝(B)三个分量组成。 学习OpenCV中有关颜色空间转换的...
下面的函数可以优化,如使用查表法,如arm cpu优化 代码转自:NV21转RGB或BGR的java实现和C实现 NV212RGBorBGR(bs, width, height, rgbbs, true); NV212RGBorBGR(byte[] input, int width, int height, byte[] output, boolean isRGB) /** * NV21图像转RGB或BGR * * @param input ...
将BGR转换为RGB。这个转换也可以通过cvtColor函数实现,代码如下: cpp复制代码 cvtColor(bgr_img, rgb_img, COLOR_BGR2RGB); 1. 2. 这里bgr_img是输入的BGR图像,rgb_img是输出的RGB图像。 因此,完整的转换代码可以写成: cpp复制代码 cvtColor(bgr_nv12_img, bgr_img, COLOR_YUV2BGR_NV12); cvtColor(bgr_img...
崩溃的信息如下: 1OpenCV(4.1.0-dev) Error: Gpu API call (invalid configuration argument)invideoDecPostProcessFrame,file/home/admin/opencv/opencv_contrib-master/modules/cudacodec/src/cuda/nv12_to_rgb.cu, line2032terminate called after throwing an instance of'cv::Exception'3what(): OpenCV(4.1.0...
}intTEST_YUVI420_to_YUV_NV12() { printf("hello wrold"); std::string_path ="../1.jpg"; cv::Mat img=cv::imread(_path);intwidth =img.cols;intheight =img.rows; cv::Mat _yuv420; cv::cvtColor(img, _yuv420, CV_BGR2YUV_I420); ...
(srcImg,dstImg,CV_YUV2RGBA_I420);}voidopencvYV12ToRGBA(unsignedchar*src,unsignedchar*dst,intwidth,intheight){MatsrcImg(height*3/2,width,CV_8UC1,src);MatdstImg(height,width,CV_8UC4,dst);cvtColor(srcImg,dstImg,CV_YUV2RGBA_YV12);}voidopencvNV12ToRGBA(unsignedchar*src,unsignedchar*dst,...
[ 19%] Building NVCC (Device) object modules/cudacodec/CMakeFiles/cuda_compile_1.dir/src/cuda/cuda_compile_1_generated_nv12_to_rgb.cu.o [ 19%] Building CXX object modules/calib3d/CMakeFiles/opencv_calib3d.dir/src/usac/sampler.cpp.o ...
cvtColor(img1, img4, COLOR_RGB2BGR); imshow("BGR", img4); waitKey(0); } 效果图: 附:代码颜色空间转换代码 enumColorConversionCodes{ COLOR_BGR2BGRA =0,//!< add alpha channel to RGB or BGR image COLOR_RGB2RGBA= COLOR_BGR2BGRA, ...
modules/cudacodec/src/cuda/nv12_to_rgb.cu Original file line numberDiff line numberDiff line change @@ -179,9 +179,9 @@ void nv12ToBgra(const GpuMat& decodedFrame, GpuMat& outFrame, int width, int hei dim3 block(32, 8); dim3 grid(divUp(width, 2 * block.x), divUp(height, ...
cvtColor(nv12, rgb2, COLOR_YUV2RGB_I420); imwrite("/home/ubuntu/rgb2.png",rgb2); return 0; */ MatyuvNV12; Matgbr24; //1.read nv12 file to nv12 mat FILE*f=fopen("/home/ubuntu/rgb320.yuv","r"); charbuff[960000]; memset(buff,0,960000); ...