Mat uMat:输入图片 Mat dst:结果图片 参数三根据原图格式变化 CvInvoke.CvtColor(uMat, dst, ColorConversion.Bgr2YuvI420); byte[] data=dst.Bytes; data:I420格式数据 Mat为emgu的图形类 Bitmap转Mat的话 Bitmap bmp = new Bitmap(width, height, PixelFormat.Format32bppPArgb); BitmapData bmpData = bm...
cv::Mat yuvImg; yuvImg.create(h*3/2, w, CV_8UC1); memcpy(yuvImg.data, pYuvBuf, bufLen*sizeof(unsignedchar)); cv::Mat rgbImg; cv::cvtColor(yuvImg, rgbImg, CV_YUV2BGR_I420); cv::imshow("img", yuvImg); cv::waitKey(1); printf("%d \n", iCount++); }delete[] pYuvBuf...
参数dstCn原来一直沿用CV_BGR2GRAY, CV_RGB2GRAY, CV_GRAY2BGR, CV_GRAY2RGB等格式,但最新几个版本的OpenCV已改为COLOR_BGR2GRAY类似形式,今天才看源代码imgproc.hpp才发现,但官方文档还没修改,如下图,如果程序中使用较新的版本OpenCV,采用CV_BGR2GRAY可能会一直出错。 新的OpenCV中imgproc.hpp的定义如下: en...
cv::Mat yuvImg; cv::cvtColor(srcImg, yuvImg, cv::COLOR_BGR2YUV_I420); memcpy(picture_buf, yuvImg.data, bufLen*sizeof(unsigned char)); pFrame->data[0] = picture_buf; // Y pFrame->data[1] = picture_buf+ y_size; // U pFrame->data[2] = picture_buf+ y_size*5/4; // ...
NVCV_COLOR_YUV2BGR_I420 NVCV_COLOR_BGR2YUV_I420 NVCV_COLOR_YUV2RGBA_I420 NVCV_COLOR_RGBA2YUV_I420 NVCV_COLOR_YUV2BGRA_I420 NVCV_COLOR_BGRA2YUV_I420 NVCV_COLOR_RGB2YUV_I420 NVCV_COLOR_YUV2RGB_YV12 NVCV_COLOR_RGB2YUV_YV12 NVCV_COLOR_YUV2BGR_YV12 NVCV_COLOR_BGR2YUV_YV12 NV...
size_t plane2_stride = CVPixelBufferGetBytesPerRowOfPlane (cvpixelBufferRef, 1); //yuv_size(内存空间) size_t frame_size = pixelWidth*pixelHeight*3/2; //开辟frame_size大小的内存空间用于存放转换好的i420数据 uint8* buffer = (unsigned char *)malloc(frame_size); ...
yuv420p=cv2.cvtColor(image,cv2.COLOR_BGR2YUV_I420).reshape((area*3// 2,))y=yuv420p[:area]uv_planar=yuv420p[area:].reshape((2,area// 4))uv_packed=uv_planar.transpose((1,0)).reshape((area// 2,))nv12=np.zeros_like(yuv420p)nv12[:height*width]=y ...
waitKey(0) bgr = cv2.cvtColor(yuv, cv2.COLOR_YUV2BGR_NV21) cv2.imshow("YUV2BGR_NV21", bgr) cv2.waitKey(0) bgr = cv2.cvtColor(yuv, cv2.COLOR_YUV2BGR_NV12) cv2.imshow("YUV2BGR_NV12", bgr) cv2.waitKey(0) bgr = cv2.cvtColor(yuv, cv2.COLOR_YUV2BGR_I420) cv2.imshow("YUV2...
cv::gapi::imgproc::G_TYPED_KERNEL(GYUV2RGB, <GMat(GMat)>, "org.opencv.imgproc.colorconvert.yuv2rgb" ) G_TYPED_KERNEL() [34/53] cv::gapi::imgproc::G_TYPED_KERNEL(GBGR2I420, <GMat(GMat)>, "org.opencv.imgproc.colorconvert.bgr2i420" ...
- NVCV_COLOR_BGR2YUV_I420 - NVCV_COLOR_YUV2RGBA_I420 - NVCV_COLOR_RGBA2YUV_I420 - NVCV_COLOR_YUV2BGRA_I420 - NVCV_COLOR_BGRA2YUV_I420 - NVCV_COLOR_RGB2YUV_I420 - NVCV_COLOR_YUV2RGB_YV12 - NVCV_COLOR_RGB2YUV_YV12 - NVCV_COLOR_YUV2BGR_YV12...