# Logical class what it is and how to import

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pizzaa on 14 Jun 2023
Commented: pizzaa on 14 Jun 2023
What is logical class??
And 1 have 1 image how do i import it in matlab as matrix in logical and save it in.mat
Just like image above, how to import image into logical class?

Ronit on 14 Jun 2023
Logical class is a data type in Matlab that allows you to store values as either true (1) or false (0) logical values. You can use logical class to perform logical operations in Matlab.
To import an image into Matlab and save it as a logical matrix, you can follow these steps:
1. Use the imread function in Matlab to read your image into a matrix. You can use the following code:
img = imread('your_image.png'); % or 'your_image.jpg', etc.
2. Convert the matrix values to logical values using the logical function in Matlab:
img_logical = logical(img);
3. Save the resulting matrix as a .mat file using the save function:
save('your_image_logical.mat', 'img_logical');
pizzaa on 14 Jun 2023
ty sir

VM Sreeram on 14 Jun 2023
The documentation says that
L = logical(A) converts A into an array of logical values. Any nonzero element of A is converted to logical 1 (true) and zeros are converted to logical 0 (false).
To import an image into a logical class in MATLAB and save it as a .mat file, you can follow these steps:
2. Convert the image to grayscale. [optional if the image is already grayscale]
gray_img = rgb2gray(img);
3. Convert the grayscale image to a binary image using the imbinarize function.
binary_img = imbinarize(gray_img);
4. Convert the binary image to a logical matrix using the logical function.
logical_img = logical(binary_img);
5. Save the logical matrix as a .mat file using the save function. Choose a filename for the .mat file.
save('filename.mat', 'logical_img');

Manas on 14 Jun 2023
Hii,
For the info regarding Logical Class, you can refer to the following documentation:
For importing an image in the Logical Class, you can use this code:
% Convert the image to a binary (logical) array
img_binary = logical(img);
Keep the image file and the .m file in same directory. For more info regarding this, you can refer to the following documentation: Convert numeric values to logicals - MATLAB logical - MathWorks India