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What the error in this code..?

Asked by Lalit Patil

Lalit Patil (view profile)

on 20 Dec 2012
      N = 7;
     for m=1:N
    fname(m,:)=files(m+7,:);
    rgb = imread(fname(m,:));
    imshow(rgb);
    cdata = ginput;
    data(:,:,m) = cdata(1:4,:);

end

For this seven images i want data where i will click.

But when i am executing this code, it shows only cursor on image but not allowing to click.. Why..?

If any mistake then tell me..?

3 Comments

Walter Roberson

Walter Roberson (view profile)

on 20 Dec 2012

Try using

image(rgb)

instead of imshow(rgb)

Lalit Patil

Lalit Patil (view profile)

on 20 Dec 2012

Thank you..

And also cdata = ginput(4)

Lalit Patil

Lalit Patil (view profile)

on 20 Dec 2012

when i am clicking on image it is just a click and i can not see where actual i have clicked, so i want to put a mark of '+' sign at there where i click.. So, what will be the modification in code.?

Lalit Patil

Lalit Patil (view profile)

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1 Answer

Answer by Walter Roberson

Walter Roberson (view profile)

on 20 Dec 2012
Accepted answer

Consider using roipoly()

Alternately, only ginput() one value at a time, and text() a '+' into place at the returned coordinates before going on to the next.

2 Comments

Lalit Patil

Lalit Patil (view profile)

on 20 Dec 2012

I will do ginput(4) so there will be four values.. Now when i clicking to extract this values at that time '+' point should be placed at clicked place in image so i can see how exactly i have clicked... I am clicking at corner of chessboard..

And what you have explained i can't understand..

So, i want to modify code..

Walter Roberson

Walter Roberson (view profile)

on 20 Dec 2012
for K = 1 : 4
  thispoint = ginput(1);
  text(thispoint(1), thispoint(2), '+');
  points(K,:) = thispoint;
end
Walter Roberson

Walter Roberson (view profile)

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