# how can i use clarity factor with gaussian kernel in image processing

조회 수: 11(최근 30일)
chang hoon oh 2021년 9월 16일
댓글: Image Analyst 2021년 9월 23일 14:46
i apply the gaussian gradient kernel to image for bubble detection
after that i trying to find the clarity of image and remove out of focused bubble. like this article
at the part 3.2.
but i can't find the code for clarity in matlab. so i use the binarize fuction and threshold but it didn't work perfectly so i want to find how i can use
clarity of the image
can anyone help me?
this is my cord
C1=C2-C;
C3 = imcomplement(C1);
M=abs(gx)+abs(gy);
M1=abs(gx1)+abs(gy1);
MU=M+M1;
Bi=imbinarize(MU,0.3);
BWdfill = imfill(Bi,'holes');
% imshow(MU);
si=si(:,:,1:3);
si=im2gray(si);
si=imbinarize(si);
BWdfill=BWdfill-si;
BWdfill=imcrop(BWdfill,[299 0 687 796]);
% imshow(BWdfill);
se = strel('disk',2);
ie = imerode(BWdfill,se);
ie = imerode(ie,se);
ie = imerode(ie,se);
% ie = imerode(ie,se);
% ie = imerode(ie,se);
id =imdilate(ie,se);
id =imdilate(id,se);
id =imdilate(id,se);
% id =imdilate(id,se);
% id =imdilate(id,se);
imshow(id);

댓글을 달려면 로그인하십시오.

### 채택된 답변

Image Analyst 2021년 9월 18일 16:51
Looks like they define clarity as the max of the gradient in each floc blob:
"The maximum value of Ig associated with each floc i is a
quantitative measure of how close to the plane of focus a given
floc is, and this value is defined here as the ‘‘clarity value’’ a
a(i) = max(Ig(ROI(i))
A threshold......"
##### 댓글 수: 2표시숨기기 이전 댓글 수: 1
Image Analyst 2021년 9월 23일 14:46
It's possible expecially if the bubble had a smooth exterior boundary and is smooth inside. I'd try adjusting parameters like the window side and threshold level.

댓글을 달려면 로그인하십시오.

R2021a

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!