how can i use imdistline to calculate the pixel in the image?

any one has example about the imdistline? i need the example to view and will apply in my project.

Answer 1

[Razvan]

Here is an example:

 % load an image
 load flujet
 imagesc(X);

 % set up the measuring tool
 h = imdistline(gca);
 api = iptgetapi(h);
 api.setLabelVisible(false);

 % pause -- you can move the edges of the segment and then press  a key to continue
 pause();

 % get the distance
 dist = api.getDistance();

 % print the result
 fprintf('The length of the segment is: %0.2f pixels \n', dist)

[norfaizayu]

what do you mean gca?

[Walter Roberson]

gca is a function call that means "get current axis".

[norfaizayu]

i got this error...

??? Attempt to execute SCRIPT imdistline as a function:

C:\Users\WISH\Documents\MATLAB\imdistline.m

Error in ==> imdistline at 6

h = imdistline(gca);

how can i solve this?

[norfaizayu]

when i run the coding it make error for that coding.how can i solve it?

[Walter Roberson]

You created your own imdistline.m file. Rename your file: the current name is conflicting with calling the MathWorks supplied imdistline() routine.

[norfaizayu]

??? Attempt to execute SCRIPT imdistline as a function:

C:\Users\WISH\Documents\MATLAB\imdistline.m

Error in ==> contoh2 at 6

h = imdistline(gca);

i got this error...

[Image Analyst]

I never knew there was a built-in imdistline - I've always used improfile(). But anyway, in your own personal overridden version of imdistline - you know the one where for some reason you did not take Walter's advice to rename it - you're missing "function imdistline(handleToFigure)" as the first line of your m-file. Of course you know that must replace the word "handleToFigure" with whatever handle name you're using to refer to the figures with.

[Varian Adisuryo]

when I replace the load function with imread function, the image become rectangle and not in actual size. How to make it show in actual size?