Interpolate Missing data and make line smooth
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Hi all
I have multiple images. each image has a line, I want to interpolate the missing value in the line and make the line smooth . and also auto correct the next pixel of line if it has the next point out of order. some images are attached
this is my input image
the output is like that
回答（1 个）
jonas
2018-7-12
Try this.
GRAY=imread('204.jpg');
threshold = graythresh(GRAY);
BW = im2bw(GRAY, threshold);
%%Find Coordinates of images and smooth
[y,x]=find(BW==1);
win=15;
y=smooth(x,y,win);
%%interpolate
[x, index] = unique(x);
xq=1:256
yq = interp1(x, y2(index), xq,'linear','extrap');
%%Create figure from plot
out=zeros(size(BW));
out(sub2ind(size(GRAY),round(yq'),xq'))=1;
%%Plot
figure;
subplot(1,2,1)
imshow(out);
title('new')
subplot(1,2,2)
imshow(GRAY);
title('original')
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