Split the license plate letters

Hi, I need to split the license plate letters. My program consists in uploading a photo, finding the image of the license plate and cutting out the plate. I just need to split the numbers and letters of this array right now. I don't know exactly how to do this. Does anyone know how it should look like? I will present the effect that I want to achieve in the attachment. The result he wants to achieve is shown on the first appendix

Regards

Answer 1

[yanqi liu]

yes，sir，may be use

clc; clear all; close all;
img = imread('https://ww2.mathworks.cn/matlabcentral/answers/uploaded_files/807304/obraz_2021-11-20_110914.png');
img2 = imcrop(img, [94 129 1086 217]);
bw = im2bw(img2);
bw = ~bw;
bw = imclearborder(bw);
bw = bwareaopen(bw, round(numel(bw)*0.01));
[L,num] = bwlabel(bw);
stats = regionprops(L);
rects = cat(1, stats.BoundingBox);
rects = sortrows(rects, 1);
ims = [];
figure('Color', [0.8 0.8 0.8]);
for i = 1 : size(rects, 1)
    ims{i} = imcrop(img2, round(rects(i,:)));
    bwi = ~im2bw(ims{i});
    bwi = imresize(bwi, [48 28], 'bilinear');
    subplot(1,size(rects, 1),i); imshow(bwi, []);
end

[Blazej Staniak]

Iprops=regionprops(im4,'BoundingBox','Area', 'Image');

area = Iprops.Area;

count = numel(Iprops);

maxa= area;

boundingBox = Iprops.BoundingBox;

for i=1:count

if maxa<Iprops(i).Area

maxa=Iprops(i).Area;

boundingBox=Iprops(i).BoundingBox;

end

end

im = imresize(im4, [240 NaN]);

im = imopen(im, strel('rectangle', [4 4]));

im = imcrop(im3, boundingBox);%wyciecie tablicy

%%figure(5); imshow(im)

im = bwareaopen(~im, 1000); %usuniece obiektow jesli szerokosc jest za dluga lub za krotka niz 500

im_neg = imcomplement(im);

%%figure(6), imshowpair(im,im_neg,'montage');

labeledImage= bwlabel(im);

this is part of my code, I just need to add a few lines to make it work the way you presented

[yanqi liu]

clc; clear all; close all;
img = imread('https://ww2.mathworks.cn/matlabcentral/answers/uploaded_files/807304/obraz_2021-11-20_110914.png');
img2 = imcrop(img, [94 129 1086 217]);
bw = im2bw(img2);
bw = ~bw;
bw = imclearborder(bw);
im4 = bwareaopen(bw, round(numel(bw)*0.01));

Iprops=regionprops(im4,'BoundingBox','Area', 'Image');
area = Iprops.Area;
count = numel(Iprops);
maxa= area;
boundingBox = Iprops.BoundingBox;
for i=1:count
   if maxa<Iprops(i).Area
       maxa=Iprops(i).Area;
       boundingBox=Iprops(i).BoundingBox;
   end
end
im = imresize(im4, 240/size(im4, 1), 'bilinear');
im = imopen(im, strel('rectangle', [4 4]));
%%figure(6), imshowpair(im,im_neg,'montage');
im = imclose(im, strel('rectangle', [2 2]));
labeledImage= bwlabel(im);
% use the follow code
stats = regionprops(labeledImage);
rects = cat(1, stats.BoundingBox);
rects = sortrows(rects, 1);
ims = [];
figure('Color', [0.8 0.8 0.8]);
for i = 1 : size(rects, 1)
    imi = imcrop(im, round(rects(i,:)));
    imi = imresize(imi, [48 28], 'bilinear');
    subplot(1,size(rects, 1),i); imshow(imi, []);
end