image contrast brightness adjust

Hi all

i want try open multiple images using implay. but want to change contrast first. Below is my code, but still error. anyone can help me.

P = zeros(512, 512, 313);
  for K = 1 : 313
     petname = sprintf('TRANSA001_CT%03d.dcm', K);
     P(:,:,K) = dicomread(petname);
  end
  Out(:,:,K) = imadjust(P(:,:,K));
 implay(Out, [-182 292]);

[KSSV]

What error you facing? Show us the error and error line.

[mohd akmal masud]

Operands to the and && operators must be convertible to logical scalar values.

Error in uiscopes.ScopeCLI/checkSource (line 92) if ~isnumeric(fps) isnan(fps) isinf(fps) ~isreal(fps)

Error in matlabshared.scopes.UnifiedScope (line 105) checkSource( hScopeCfg.ScopeCLI );

Error in uiscopes/new (line 22) hScope = matlabshared.scopes.UnifiedScope(hScopeCfg, varargin{:});

Error in implay (line 60) obj = uiscopes.new(hScopeCfg);

Error in JDT (line 7) implay(Out, [-182 292]);

[KSSV]

problem is at implay..I think imadjust is working fine.

[mohd akmal masud]

i know. do you have idea?

[KSSV]

What is class and size of out ?

simply try:

implay(Out)

[mohd akmal masud]

what is out

[mohd akmal masud]

Name        Size              Bytes  Class    Attributes

    C2        512x512            524288  int16   

    if true
      % code
    end

[KSSV]

   implay(Out, [-182 292]);

What is Out class?

[mohd akmal masud]

 Name        Size              Bytes  Class    Attributes

Out        512x512            524288  int16

Answer 1

[DGM]

The second argument to implay() is the framerate in FPS. It's a scalar. I have no idea why you're passing it a vector including negative values, but that won't work.