precisionmediumpfloat;uniformsampler2DtextureY;uniformsampler2DtextureU;uniformsampler2DtextureV;varyingvec2vs_fs_textureCoord;constmat4YUV_TO_RGB_MATRIX=mat4(1,0,1.5748,0,1,-0.1873242729,-0.4681242729,0,1,1.8556,0,0,0,0,0,1);voidmain(){floaty=texture2D(textureY,vs_fs_textureCoord).r;floatu...
如果要实现YUV转换到RGB,可以看一下convert_argb的头文件:https://github.com/lemenkov/libyuv/blob/master/include/libyuv/convert_argb.h // Conversion matrix for YUV to RGB LIBYUV_API extern const struct YuvConstants kYuvI601Constants; // BT.601 LIBYUV_API extern const struct YuvConstants kYuvJPEG...
matrix = np.array([[0.299, 0.587, 0.114], [-0.147, -0.289, 0.436], [0.615, -0.515, -0.100]])returnnp.dot(rgb, matrix.T) def yuv_to_rgb(yuv): matrix = np.array([[1, 0, 1.140], [1, -0.394, -0.581], [1, 2.032, 0]])returnnp.dot(yuv, matrix.T) # 示例 RGB 图像 rgb...
{\displaystyle {\begin{bmatrix}R\\G\\B\end{bmatrix}}={\begin{bmatrix}1&-0.00093&1.401687\\1&-0.3437&-0.71417\\1&1.77216&0.00099\end{bmatrix}}{\begin{bmatrix}Y\\U-128\\V-128\end{bmatrix}}} YUV转RGB[编辑] function RGB* YUV444toRGB888(Y, U, V);将YUV format移转成简单的RGB ...
Y'UV与RGB转换 SDTV(standard-definition television) with BT.601定义公式如下: $$ \begin{bmatrix} Y' \\ U \\ V \end{bmatrix}=\begin{bmatrix} 0.299&0.587&0.114 \\ -0.14713&-0.28886&0.436 \\ 0.615&-0.51499&-0.10001 \end{bmatrix}\begin{bmatrix} R \\ G \\ B \end{bmatrix} $$ ...
vImage_Error error= vImageConvert_YpCbCrToARGB_GenerateConversion(kvImage_YpCbCrToARGBMatrix_ITU_R_601_4, &pixelRange, &infoYpCbCrToARGB, kvImage420Yp8_CbCr8, kvImageARGB8888, kvImageNoFlags); uint8_t permuteMap[4] = {0,1,2,3}; ...
(image,conversion_matrix)returnyuv_image# 示例if__name__=="__main__":# 读取输入图像image='example.jpg'# 假设在当前目录中有example.jpgyuv_image=rgb_to_yuv(image)# 显示图像plt.subplot(1,2,1)plt.title('Original RGB Image')plt.imshow(cv2.cvtColor(cv2.imread(image),cv2.COLOR_BGR2RGB))...
vImageConvert_YpCbCrToARGB_GenerateConversion(kvImage_YpCbCrToARGBMatrix_ITU_R_709_2, &pixelRange, &info, kvImage420Yp8_CbCr8, kvImageARGB8888, flags); }); CVPixelBufferLockBaseAddress(srcPixelBuffer, kCVPixelBufferLock_ReadOnly);
ENFFmpeg中AVFrame到OpenCV中Mat的两种转换方法 方法一：查表法 void AVFrame2Img(AVFrame *pFrame, cv...
做音视频或图像处理方向的开发同学一般都或多或少接触过 libyuv[1] 这个开源库,我们在音视频开发中处理 YUV、RGB 等格式的数据转换、旋转、缩放时常常用到它。libyuv 基于 C 语言实现,可以在 Windows、Linux、Mac OS、Android、iOS 等多平台使用,并且做了指令集加速优化