Capture Frame Size Questions.

RobertNash · Post by **RobertNash** » Mon Jun 06, 2005 9:31 pm

Depending on the frame size I chose the portion of the picture captured varies.
By that I mean if I chose 704x576 I get the full video picture.

If I chose a smaller different frame size then I seem to get that section of magnified 640x576. For example if I chose 640x288 I only capture the top half of the video. Is this correct?

If this correct them how to I change the resolution of the capture frames?
The video format on the tape has a frame size for standard PAL

Thanks,

Robert Nash

kebrinton · Post by **kebrinton** » Tue Jun 07, 2005 12:27 am

Are you trying to capture (or transfer) video from your videocamera to your computer?

Or are you trying to capture individual frames?

Give us a little more detail, please.

RobertNash · Post by **RobertNash** » Tue Jun 07, 2005 8:04 am

Trying to capture video from the camera to the computer.

I believe I need to capture a PAL signal. The only problem being when I do that I have some garbled lines of video at the bottom of the screen. I wanted to try and use a framesize slight less that PAL DvD to cut out the corrupt video at the bottom.

But I believe I need to get a better camcorder with DV and plays 8mm for better quality capture and not use my Nvidia VI RCA input.

Thanks for any advice.

Robert

Post by **Ken Berry** » Tue Jun 07, 2005 11:22 pm

How much 'corrupt' video is at the bottom of your screen? I ask because it is perfectly normal for any video captured from an analogue video camera to have a line or two of 'fuzz' at the bottom (or top?) of screen. But this is outside the area which is actually seen on screen in your final product. In other words, if it is only a line or two, ignore it.

RobertNash · Post by **RobertNash** » Wed Jun 08, 2005 8:11 am

I would say the corruption is about 4 lines worth. But if its not seen on the final rendered image then I can ignore it.

If it is, is there an easy way to crop the video frame size and then rerender back to the original. i.e effectively zoom in to remove the corrupt areas?

Thanks,

Robert Nash

THoff · Post by **THoff** » Wed Jun 08, 2005 8:38 am

Correct, that portion of the video won't be visible during playback on a TV. It will be visible during playback on a computer monitor, however.

If you want to get rid of it, you can use the Cropping filter. Drag the Cropping filter onto your video, click Customize, and then center a cropping filter area of 98% horizontal and vertical size over the video.

RobertNash · Post by **RobertNash** » Wed Jun 08, 2005 12:41 pm

Thanks alot.

Why is it show on the PC monitor and not the TV screen.

Robert Nash

THoff · Post by **THoff** » Wed Jun 08, 2005 5:16 pm

Because PC monitors and TVs work differently.

With a CRT monitor, you adjust the display so that the entire Windows desktop is visible -- nobody would put up with the taskbar being partially covered by the bezel around the display, or not being able to click on the window close box of a full-screen application. With LCD displays, you don't even get to adjust those parameters.

A TV is different. They are designed to cover up a small area around the edges of the display, because this is where the electron beam starts the retrace. The retrace area will always be fuzzy and have some visual garbage in it, so the area gets covered up so the viewer can't even see it.