How to extract character and number only from this image to .txt?

This is the last figure from erode.

close all;
clear all;

%open original image/rgb image
im = imread('2.jpeg');         
imshow(im)
%crop the number plate area
img = imcrop(im, [140 620 610 380]);               
f1 = figure;
%convert RGB to grayscale image
imgray = rgb2gray(img);                             
imshow(imgray)
f2 = figure;
%edge detection from grayscale using sobel method
e = edge(imgray, 'sobel');
imshow(e)
f3 = figure;
%to make the image more thicker
se90 = strel('line',4,90);
se0 = strel('line',4,0);
s = imdilate(e,[se90 se0]);
imshow(s)

f4 = figure;

% Use bwareaopen to delete objects smaller than minSize
g = bwareaopen(s, 150,8);
% g = bwareaopen(g, 1100, 8);
imshow(g)
f5 = figure;
% Using imclearborder to delete object that touch border of the image
h = imclearborder(g);
imshow(h)
f6 = figure;
% to make the image more thinner
se = strel('line',5,45);
f = imerode(h,se);
imshow(f)
f7 = figure;

Please help me about that. Thanks by now for your attention.

Answer 1

[Kevin Holly]

You could use the optical character recognition (ocr) function that comes with the image processing and computer vision toolbox as such:

img = imread('2.jpeg');         
imshow(img)

cropped_img = img(850:950,300:700,:);
imshow(cropped_img)

License = ocr(cropped_img, 'TextLayout', 'line', 'CharacterSet', 'ABCDEFGHIJKLMNOPQRSTUOVWXYZ0123456789')

License = 
  ocrText with properties:

                      Text: 'JTT 8525↵↵'
    CharacterBoundingBoxes: [10×4 double]
      CharacterConfidences: [10×1 single]
                     Words: {2×1 cell}
         WordBoundingBoxes: [2×4 double]
           WordConfidences: [2×1 single]

License.Text

ans = 
    'JTT 8525
     
     '

writelines(License.Text,"temp.txt")