read pbin file to Matlab

Dears,

how to Is there any example how to read "pbin" file into Matlab workspave?

Thank you.

[Cameron]

Can you attach the file or an exmaple of the file? Without that it is difficult to answer.

[Jack Daniels]

I've attached the file in *.pbin format - it should contain the image matrix. I'd like to read it and display (image) it...

Answer 1

[Manish]

Hi,

I understand that you want to read the ‘pbin’ file, which contains an image data.

Here is the general approach to reading binary files and displaying them as images in MATLAB:

• Start by using ‘fopen’ to get your file ready. Just pass in the file name and the mode you want, like ‘r’ if you're planning to read.
• Next, use the ‘fread’ to read the content of the file.
• Finally, Close the file with help of ‘fclose’.
• Visualise the image with help of ‘imshow’ function.

Here is the code sample to read the ‘pbin’ file which contains the image data:

filename = 'test1.pbin'; 
fileID = fopen(filename, 'rb'); 
% Adjust 'datatype' and [width, height] according to your file's specifications 
width = 256; 
height = 256;  
dataType = 'uint8'; 
imageData = fread(fileID, [width, height], dataType); 
fclose(fileID); 
imshow(imageData, []); 

You can refer to the documentations for the functions used: 

• fopen: https://www.mathworks.com/help/matlab/ref/fopen.html
• fread: https://www.mathworks.com/help/matlab/ref/fread.html
• fclose: https://www.mathworks.com/help/matlab/ref/fclose.html
• imshow: https://www.mathworks.com/help/matlab/ref/imshow.html

Hope this helps!