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); cv::imwrite("../1_yuv420.jpg", _yuv420); auto*ptr__yuv420sp_nv12 =newuchar[wi...
COLOR_YCrCb2RGB = 39, COLOR_BGR2HSV = 40, COLOR_RGB2HSV = 41, COLOR_BGR2Lab = 44, COLOR_RGB2Lab = 45, COLOR_BGR2Luv = 50, COLOR_RGB2Luv = 51, COLOR_BGR2HLS = 52, COLOR_RGB2HLS = 53, COLOR_HSV2BGR = 54, COLOR_HSV2RGB = 55, COLOR_Lab2BGR = 56, COLOR_Lab2RGB =...
< convert between RGB/BGR and YUV COLOR_RGB2YUV=83, COLOR_YUV2BGR=84, COLOR_YUV2RGB=85, //! YUV 4:2:0 family to RGB COLOR_YUV2RGB_NV12=90, COLOR_YUV2BGR_NV12=91, COLOR_YUV2RGB_NV21=92, COLOR_YUV2BGR_NV21=93, COLOR_YUV420sp2RGB=COLOR_YUV2RGB_NV21, COLOR_YUV420sp2BGR...
< convert RGB/BGR to luma-chroma (aka YCC), @ref color_convert_rgb_ycrcb"color conversions" COLOR_RGB2YCrCb=37, COLOR_YCrCb2BGR=38, COLOR_YCrCb2RGB=39, COLOR_BGR2HSV=40, //!< convert RGB/BGR to HSV (hue saturation value), @ref color_convert_rgb_hsv"color conversions" COLOR_RGB2...
而在图像的处理过程中,其实很少使用YUV格式,一般都需要转成RGB格式或者灰度图格式进行转换,而opencv的cvtColor()函数支持这种转换 cvtColor opencv的python接口如下: st = cv.cvtColor( src, code[, dst[, dstCn]] 1. 其中src:为原图片 code:需要进行色彩空间转换的结果 ...
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。
cv::COLOR_YUV420sp2BGRA = COLOR_YUV2BGRA_NV21, cv::COLOR_YUV2RGB_YV12 = 98, cv::COLOR_YUV2BGR_YV12 = 99, cv::COLOR_YUV2RGB_IYUV = 100, cv::COLOR_YUV2BGR_IYUV = 101, cv::COLOR_YUV2RGB_I420 = COLOR_YUV2RGB_IYUV, ...
rgb2yuv422_Loop&){return*this;};private:cv::Mat&src_img;cv::Mat&dst_img;};voidcvtcolor_...
Static COLOR_YUV420sp2RGBA := OpenCV.COLOR_YUV2RGBA_NV21 Static COLOR_YUV420sp2BGRA := OpenCV.COLOR_YUV2BGRA_NV21 Static COLOR_YUV2RGB_YV12 := 98 Static COLOR_YUV2BGR_YV12 := 99 Static COLOR_YUV2RGB_IYUV := 100 Static COLOR_YUV2BGR_IYUV := 101 Static COLOR_YUV2RGB_I420 :=...
EASY EAI nano支持把当前编码器输入的图片格式为YUV420SP_NV12,YUV数据格式由三种数据构成:灰度值数据(Y)、蓝色分量数据(U),红色分量数据(V)。数据内容如下所示。 在EASY EAInano开发板上,使用rkMedia SDK来调用这些多媒体功能。而easy-eai又对其进行了再次的封装,形成了easyeai 库,该库简化了rkmedia的接口调用...