how to select particular minuate in finger print image and then convert to hexadecimal code ...

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sravani manne muddu 2022-3-10

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https://ww2.mathworks.cn/matlabcentral/answers/1668319-how-to-select-particular-minuate-in-finger-print-image-and-then-convert-to-hexadecimal-code

编辑： Vaibhav 2023-10-18

after ridges and bifurucation i need to selct the singular point of the image and check the integer value

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Walter Roberson 2022-3-10

ginput() and dec2hex or num2hex

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Answer 1

Vaibhav 2023-10-18

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https://ww2.mathworks.cn/matlabcentral/answers/1668319-how-to-select-particular-minuate-in-finger-print-image-and-then-convert-to-hexadecimal-code#answer_1335799

编辑：Vaibhav 2023-10-18

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Hi Sravani,

I understand that you would like to pinpoint a single spot on an image and then convert the value to hexadecimal code.

One of the approach can be using "ginput()" and "dec2hex()" functions.

The "ginput(1)" function allows to interactively select a point in the image.
Convert the value of the selected point into hexadecimal using the "dec2hex" function.

Check out the code snippet below for using "ginput" and "dec2hex":

% Load an example image
imagePath = 'peppers.png';  % Replace with the path to your image
originalImage = imread(imagePath);
% Display the original image
figure;
imshow(originalImage);
title('Select a Point');
% Use ginput to interactively select a point
disp('Select a point on the image...');
selectedPoint = round(ginput(1));  % Get the coordinates of the selected point
disp(['Selected Point: ', num2str(selectedPoint)]);
% Extract the intensity value at the selected point
intensityValue = originalImage(selectedPoint(2), selectedPoint(1), 1);
% Convert the intensity value to hexadecimal
hexCode = dec2hex(intensityValue, 2);
% Display the results
disp(['Intensity Value: ', num2str(intensityValue)]);
disp(['Hexadecimal Code: ', hexCode]);