myriaxis
6th September 2004, 23:28
Hi to all,
Can someone please tell me if my video resizing logic is correct? I searched a lot on the web and didn't find a clear answer.
I have a 512x352 PAL avi and would like to convert it to NTSC DVD (720x480). Resizing the source sounds like a good idea, but I'm not quite sure what the resizing target should be. I've tried FitCD to give me clues, but I found it more confusing than helping.
From what I understand, the aspect ratio of my source avi is 1.4545 and the destination aspect ratio is 1.5. To keep the original aspect ratio, I would have to resize and add black borders (letterbox). Also, since a normal television set doesn't display the entire image, it is suggested not to resize to the maximum value of 720x480. I figured that a 16 pixels border should be fine. This means I have to resize the source avi within 688x448. So, keeping the 1.4545 aspect ratio, the resize target would be 651.6363x448. Since the values must be multiple of 16, the resize target should really be 656x448, a close approximation of the source aspect ratio.
Is this video resizing logic correct?
Is the black border too large?
Are there better resize target options to consider?
Can someone please tell me if my video resizing logic is correct? I searched a lot on the web and didn't find a clear answer.
I have a 512x352 PAL avi and would like to convert it to NTSC DVD (720x480). Resizing the source sounds like a good idea, but I'm not quite sure what the resizing target should be. I've tried FitCD to give me clues, but I found it more confusing than helping.
From what I understand, the aspect ratio of my source avi is 1.4545 and the destination aspect ratio is 1.5. To keep the original aspect ratio, I would have to resize and add black borders (letterbox). Also, since a normal television set doesn't display the entire image, it is suggested not to resize to the maximum value of 720x480. I figured that a 16 pixels border should be fine. This means I have to resize the source avi within 688x448. So, keeping the 1.4545 aspect ratio, the resize target would be 651.6363x448. Since the values must be multiple of 16, the resize target should really be 656x448, a close approximation of the source aspect ratio.
Is this video resizing logic correct?
Is the black border too large?
Are there better resize target options to consider?