How to save the segmented image automatically - matlab

Question

I did a program on matlab for character segmentation of bengali script and i want to save the series of segmented image automatically in a specific folder. So anyone help me with the matlab code for saving image automatic
%%LINES SEGMENTATION:
close all;
clear all;
clc;
im=imread('page_1.tif');%read the image
%figure, imshow(im);
%%title('INPUT IMAGE WITH NOISE');
qw=im;
if size(im,3)==3 % RGB image %% Convert to gray scale
im=rgb2gray(im);
end
threshold = graythresh(im); %% Convert to binary image
im =~im2bw(im,threshold);
im = bwareaopen(im,10); %% Remove all object containing fewer than 60 pixels
%figure(2) %% Show image binary image
%imshow(~im);
%title('INPUT IMAGE WITHOUT NOISE');
%figure, area(im);
%find Area of Interest:
a=(~im);
ijk=~a;
xy=sum(ijk,2);
measurements = regionprops(xy == 0, 'Area', 'PixelIdxList');
%Get indexes of those regions that are >= 20 in length.
fiveLongRegions = find([measurements.Area] >= 3);
theIndexes = vertcat(measurements(fiveLongRegions).PixelIdxList);
c=a;
c(theIndexes,:)=0;
%figure, imshow(c);
%title('AREA OF INTEREST FOR LINE SEGMENT');
ca=~c;
%Segmentation of line:
[x,y]=size(ca);
mat1=sum(ca,2);%sum the elements of bwrowise and save into column matrix mat1
mat2=y-mat1;%subtract each element of the sum matrix(mat1) from the width length(no. of columns)
mat3=mat2~=0;
mat4=diff(mat3);
index1=find(mat4);
[q,w]=size(index1);%size of index2 matrix is q*w
kap=1;
lam=1;
%iii=1;
%ii=1;
while kap<((q/2)+1);%number of loops=number of lines
k=1;
mat5=([]);
for j=(index1(lam)+1):1:index1(lam+1)
mat5(k,:)=c(j,:); %store the line segmented matrix
k=k+1;
end
lam=lam+2;
kap=kap+1;
figure, imshow(mat5);
%%imsave();
%%WORDS SEGMENTATION:
bwword=im2bw(mat5);%convert the image im into binary(black and white)
aword=~bwword;
bword=sum(aword,1);
%%figure, area(b);
%%Measure lengths of all "0" regions.
measurementsword = regionprops(bword == 0, 'Area', 'PixelIdxList');
% Get indexes of those regions that are >= 20 in length.
fiveLongRegionsword = find([measurementsword.Area] >= 5);
theIndexesword = vertcat(measurementsword(fiveLongRegionsword).PixelIdxList);
cword=aword;
cword(:,theIndexesword)=1;
%%figure, imshow(c);
dword=~cword;
%%figure, imshow(dword);
%%title('AREA OF INTERESRT FOR WORD SEGMENTATION IMAGE');
[xword,yword]=size(cword);
mat1word=sum(cword,1);%sum the elements of bwrowise and save into column matrix mat1
mat2word=xword-mat1word;%subtract each element of the sum matrix(mat1) from the width length(no. of columns)
mat3word=mat2word~=0;
mat4word=diff(mat3word);
index1word=find(mat4word);
[qword,wword]=size(index1word);%size of index2 matrix is q*w
kapword=1;
lamword=1;
%%iii=1;
%%ii=1;
while kapword<((wword/2)+1);%number of loops=number of lines
kword=1;
mat5word=([]);
for jword=(index1word(lamword)+1):1:index1word(lamword+1)
mat5word(:,kword)=bwword(:,jword); %store the word segmented matrix
kword=kword+1;
end
lamword=lamword+1;
kapword=kapword+1;
figure, imshow(mat5word);
%imsave();
%%CHARACTER SEGMENTATION:
bwcha=im2bw(mat5word);%convert the image im into binary(black and white)
acha=~bwcha;
mat1cha=sum(a,2);
%figure, area(mat1);
xcha=find(mat1cha>70);
ycha=acha;
ycha(xcha,:)=0;
ycha = bwareaopen(ycha,20);
figure,imshow(ycha);
%figure, area(y);
%mat2=sum(y,2);
%x1=find(mat2<7);
%y1=y;
%y1(x1,:)=0;
%y1 = bwareaopen(y1,15);
%z=~y1;
%figure, imshow(z);
[Lcha, bcha,]=bwlabel(ycha); %% Label connected components
propiedcha=regionprops(Lcha,'BoundingBox'); %% Measure properties of image regions
for ncha=1:size(propiedcha,1) %% Plot Bounding Box
rectangle('Position',propiedcha(ncha).BoundingBox,'EdgeColor','g','LineWidth',1);
end
for ncha=1:bcha %% Objects extraction
[rcha,ccha] = find(Lcha==ncha);
n1cha=ycha(min(rcha):max(rcha),min(ccha):max(ccha));
figure, imshow(~n1cha);
%pause(0.2)
%imsave();
end
end
end
`enter co%%LINES SEGMENTATION:
close all;
clear all;
clc;
im=imread('page_1.tif');%read the image
%figure, imshow(im);
%%title('INPUT IMAGE WITH NOISE');
qw=im;
if size(im,3)==3 % RGB image %% Convert to gray scale
im=rgb2gray(im);`enter code here`
end
threshold = graythresh(im); %% Convert to binary image
im =~im2bw(im,threshold);
im = bwareaopen(im,10); %% Remove all object containing fewer than 60 pixels
%figure(2) %% Show image binary image
%imshow(~im);
%title('INPUT IMAGE WITHOUT NOISE');
%figure, area(im);
%find Area of Interest:
a=(~im);
ijk=~a;
xy=sum(ijk,2);
measurements = regionprops(xy == 0, 'Area', 'PixelIdxList');
%Get indexes of those regions that are >= 20 in length.
fiveLongRegions = find([measurements.Area] >= 3);
theIndexes = vertcat(measurements(fiveLongRegions).PixelIdxList);
c=a;
c(theIndexes,:)=0;
%figure, imshow(c);
%title('AREA OF INTEREST FOR LINE SEGMENT');
ca=~c;
%Segmentation of line:
[x,y]=size(ca);
mat1=sum(ca,2);%sum the elements of bwrowise and save into column matrix mat1
mat2=y-mat1;%subtract each element of the sum matrix(mat1) from the width length(no. of columns)
mat3=mat2~=0;
mat4=diff(mat3);
index1=find(mat4);
[q,w]=size(index1);%size of index2 matrix is q*w
kap=1;
lam=1;
%iii=1;
%ii=1;
while kap<((q/2)+1);%number of loops=number of lines
k=1;
mat5=([]);
for j=(index1(lam)+1):1:index1(lam+1)
mat5(k,:)=c(j,:); %store the line segmented matrix
k=k+1;
end
lam=lam+2;
kap=kap+1;
figure, imshow(mat5);
%%imsave();
%%WORDS SEGMENTATION:
bwword=im2bw(mat5);%convert the image im into binary(black and white)
aword=~bwword;
bword=sum(aword,1);
%%figure, area(b);
%%Measure lengths of all "0" regions.
measurementsword = regionprops(bword == 0, 'Area', 'PixelIdxList');
% Get indexes of those regions that are >= 20 in length.
fiveLongRegionsword = find([measurementsword.Area] >= 5);
theIndexesword = vertcat(measurementsword(fiveLongRegionsword).PixelIdxList);
cword=aword;
cword(:,theIndexesword)=1;
%%figure, imshow(c);
dword=~cword;
%%figure, imshow(dword);
%%title('AREA OF INTERESRT FOR WORD SEGMENTATION IMAGE');
[xword,yword]=size(cword);
mat1word=sum(cword,1);%sum the elements of bwrowise and save into column matrix mat1
mat2word=xword-mat1word;%subtract each element of the sum matrix(mat1) from the width length(no. of columns)
mat3word=mat2word~=0;
mat4word=diff(mat3word);
index1word=find(mat4word);
[qword,wword]=size(index1word);%size of index2 matrix is q*w
kapword=1;
lamword=1;
%%iii=1;
%%ii=1;
while kapword<((wword/2)+1);%number of loops=number of lines
kword=1;
mat5word=([]);
for jword=(index1word(lamword)+1):1:index1word(lamword+1)
mat5word(:,kword)=bwword(:,jword); %store the word segmented matrix
kword=kword+1;
end
lamword=lamword+1;
kapword=kapword+1;
figure, imshow(mat5word);
%imsave();
%%CHARACTER SEGMENTATION:
bwcha=im2bw(mat5word);%convert the image im into binary(black and white)
acha=~bwcha;
mat1cha=sum(a,2);
%figure, area(mat1);
xcha=find(mat1cha>70);
ycha=acha;
ycha(xcha,:)=0;
ycha = bwareaopen(ycha,20);
figure,imshow(ycha);
%figure, area(y);
%mat2=sum(y,2);
%x1=find(mat2<7);
%y1=y;
%y1(x1,:)=0;
%y1 = bwareaopen(y1,15);
%z=~y1;
%figure, imshow(z);
[Lcha, bcha,]=bwlabel(ycha); %% Label connected components
propiedcha=regionprops(Lcha,'BoundingBox'); %% Measure properties of image regions
for ncha=1:size(propiedcha,1) %% Plot Bounding Box
rectangle('Position',propiedcha(ncha).BoundingBox,'EdgeColor','g','LineWidth',1);
end
for ncha=1:bcha %% Objects extraction
[rcha,ccha] = find(Lcha==ncha);
n1cha=ycha(min(rcha):max(rcha),min(ccha):max(ccha));
figure, imshow(~n1cha);
%pause(0.2)
%imsave();
end
end
end
de here`ally i am providing my code

Answer 1

Assuming you are trying to write to folder all n1cha images that you show at the end of your code.
You'll need to maintain a counter that counts how many characters you already saved and then use imwrite to save the characters:
% init variables before loop
imgFolder = 'path/to/saved/images';
counter = 1;
while kap<((q/2)+1);%number of loops=number of lines
% your code here... nested loops...
% ...
% finally you get to this loop:
for ncha=1:bcha
% extract the character...
imwrite( n1cha, fullfile( imgFolder, sprintf( 'char_%04d.png', counter ) ) );
counter = counter + 1;
end
end

Answer 2

If you want to save it to folder with name 'Folder', here it goes(I'm using and copy paste your code):
folder = "Folder"; // **the path and name of your folder**<br/>
for ncha=1:bcha %% Objects extraction<br/>
[rcha,ccha] = find(Lcha==ncha);<br/>
n1cha=ycha(min(rcha):max(rcha),min(ccha):max(ccha));<br/>
figure, imshow(~n1cha);<br/>
imwrite(n1cha, folder); **//code to save it to folder 'Folder' automatically**<br/>
end