Re: Video resolution

Hello
 
      It is weird that it hasnt work with the webcam, what type of webcam you 
are using?
 
 Try a cvWaitKey(500) after the cvResizeWindow, sometimes you have to give a 
little time to the window to resize. And for the error you talk about, is there 
a message?
 
    Maybe it will be more easy to help you if you share the code.
 
 regards
  
       Rafael Nevarez
 
Kok Jun <ck_jun@xxxxxxxxxxx> wrote:    Hi i tried doing what you suggested. I 
tried it on a webcam as well as on a 
 matrox frame capture card.
 
 for the webcam, there was no effect, the window still remained the same 
 size...
 
 for the matrox, there was an error and the program had to terminate...would 
 you know what the problem might be?
 
 Regards
 KJ
 
 
 >From: Rafael Nevarez <epilef99@xxxxxxxxx>
 >Reply-To: OpenCV@xxxxxxxxxxxxxxx
 >To: OpenCV@xxxxxxxxxxxxxxx
 >Subject: Re: [OpenCV] Video resolution
 >Date: Tue, 28 Mar 2006 09:29:11 -0800 (PST)
 >
 >Hi
 >
 >     If you want to change the resolution of the captured frame, use:
 >
 >  cvSetCaptureProperty(frame, CV_CAP_PROP_FRAME_WIDTH, 320); //640
 >  cvSetCaptureProperty(frame, CV_CAP_PROP_FRAME_HEIGHT, 240); //480
 >
 >     Or if you want to only to change the size of the window use:
 >
 >      cvNamedWindow("camara", 1); //CV_WINDOW_AUTOSIZE);  Set to the size 
 >of the frame
 >      cvResizeWindow("camara", 320, 240);
 >
 >  Regards
 >
 >Kok Jun <ck_jun@xxxxxxxxxxx> wrote:    hi,
 >
 >  when i use the function cvCaptureFromCam(-1), it automatically displays a
 >  window of a default size.
 >
 >  what can i do so that the display window will be of the size 320x240?
 >
 >  thanks!!
 >
 >  Regards
 >  KJ
 >
 >
 >

                        
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