how to calculate mean without considering the zero in matrix
조회 수: 5 (최근 30일)
이전 댓글 표시
I want to calculate MSE of two frames. I am ignoring the nan values by creating a mask associated to the motion compensated frame which has 1 wherever there is a non nan value in mcframe and 0 wherever there is nan. When I caluculate the MSE i only want to caluclate the error where mask is 1. I am using the following code but the value i am getting is pretty high. Not sure if I am doing the right thing here.
Attached are the values of mask, diff and mcframe matrices
mcframe(isnan(mcframe)) = 0;
diff = (mcframe - double(current_pic)).^2;
mse = sum(sum(diff))./sum(sum(mask == 1));
댓글 수: 1
the cyclist
2020년 5월 19일
FYI, it would be much easier for us if you had saved those variables to a *.mat file, and uploaded that.
답변 (1개)
the cyclist
2020년 5월 19일
Presumably the easiest way to do what you want is to use the nanmean function from the Statistics and Machine Learning Toolbox, or the 'omitnan' input to the mean function.
댓글 수: 0
참고 항목
카테고리
Help Center 및 File Exchange에서 Introduction to Installation and Licensing에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!