How to check neighbouring elements in a 2D array
显示 更早的评论
I have a 2D array (~1000x1000) of intensity values that I would like to transform into an image to use as a mask for data processing in another program. I would like to mask out the dark lines and the corners:
What I am thinking is that for each element in the array, the neighbouring values (e.g. in a set radius) are checked for the proportion of zero values. If the proportion of zero values is above a set threshold, it should return a zero and otherwise it should return a one.
Happy to hear suggestions about other ways of going about this, and thank you in advance.
2 个评论
Oliver Lindsay
2023-6-19
Basically I would like the black regions (lines and corners) to be solid black, and the white regions to be solid white.
Here is an example of a type of output I'd be looking for, noting that it doesn't have the corners cut out.
采纳的回答
load Image
BW=bwareaopen(~BW,100);
se=ones(7);
BW=medfilt2(BW,size(se));
BW=bwareaopen(BW,100);
BW=~bwareaopen(~BW,100);
BW=imclose(BW,se);
BW=conv2(BW,ones(5),'same')>0.5;
imshow(BW,[]); shg
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Display Image 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
