计算视频质量BDBR 和BD-PSNR的matlab代码
时间: 2024-02-17 11:00:53 浏览: 29
以下是计算视频质量BDBR和BD-PSNR的Matlab代码示例:
```matlab
% 加载原始视频和压缩视频
ori_video = VideoReader('original_video.mp4');
cmp_video = VideoReader('compressed_video.mp4');
% 初始化变量
num_frames = min(ori_video.NumFrames, cmp_video.NumFrames);
bdbr_sum = 0;
bdpsnr_sum = 0;
% 循环计算每一帧的BDBR和BD-PSNR
for i = 1:num_frames
% 读取原始视频和压缩视频的当前帧
ori_frame = read(ori_video, i);
cmp_frame = read(cmp_video, i);
% 计算视频质量BDBR
bdbr = sum((cmp_frame(:) - ori_frame(:)).^2) / sum(ori_frame(:).^2);
bdbr_sum = bdbr_sum + bdbr;
% 计算视频质量BD-PSNR
mse = mean((cmp_frame(:) - ori_frame(:)).^2);
bdpsnr = 10 * log10((max(ori_frame(:))^2) / mse);
bdpsnr_sum = bdpsnr_sum + bdpsnr;
end
% 计算平均BDBR和BD-PSNR
avg_bdbr = bdbr_sum / num_frames;
avg_bdpsnr = bdpsnr_sum / num_frames;
% 显示结果
disp(['Average BDBR: ' num2str(avg_bdbr)]);
disp(['Average BD-PSNR: ' num2str(avg_bdpsnr)]);
```
请注意,这只是一个示例代码。实际应用中,您需要根据您的视频格式和质量度量标准进行适当的修改和调整。