Clear Filters
Clear Filters

How to crop 1 inch

2 views (last 30 days)
pizzaa
pizzaa on 3 Jul 2023
Commented: pizzaa on 4 Jul 2023
I want to crop an image with 1 inch for every side, i dont know kow much pixel 1 inch in matlab so
How do i crop an image with 1 inch or 2,54 cm.
Can someone provide the code?
  1 Comment
Rik
Rik on 3 Jul 2023
You will need to know the resolution of your image in terms of dpi (/ppi): dots per inch. That is sometimes stored in the image metadata, but otherwise is something you will have to determine yourself.

Sign in to comment.

Accepted Answer

Image Analyst
Image Analyst on 3 Jul 2023
You will need to know how many pixels per inch there are. You can do this by drawing a line along some object in your image that has a known size in inches. See attached spatial calibration demo.
  1 Comment
pizzaa
pizzaa on 4 Jul 2023
ty too image analyst, ur a god

Sign in to comment.

More Answers (2)

Ludo Houben
Ludo Houben on 3 Jul 2023

Sushma Swaraj
Sushma Swaraj on 3 Jul 2023
Hi, We use the 'imcrop' function to crop an image.
% Read the image
image = imread('your_image.jpg'); % Replace 'your_image.jpg' with the file path of your image
% Get the image size in pixels
[height, width, ~] = size(image);
% Calculate the desired margin size in pixels
marginInches = 1; % 1 inch margin
pixelsPerInch = get(0, 'ScreenPixelsPerInch'); % Get the screen resolution in pixels per inch
marginPixels = round(marginInches * pixelsPerInch); % Convert inches to pixels
% Calculate the crop region
cropRect = [marginPixels + 1, marginPixels + 1, width - 2*marginPixels, height - 2*marginPixels];
% Crop the image
croppedImage = imcrop(image, cropRect);
% Display the cropped image
imshow(croppedImage);
Hope it helps!
  1 Comment
pizzaa
pizzaa on 4 Jul 2023
Edited: pizzaa on 4 Jul 2023
Thanks ur a beast

Sign in to comment.

Categories

Find more on Images in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!