Am 26.05.2015 um 17:53 schrieb Le_Forgeron:
>>> Changing the default right vector (even to something like
>>> image_width:image_height ratio, assuming square pixel
>>> everywhere) would only have one sure effect: break every
>>> historical scenes. Without providing 100% satisfaction to all
>>> users. Better not move.
>> I totally agree - except when it comes to defaulting to square
>> pixels, which /does/ make sense nowadays; after all, that's what
>> any reasonable image handling software defaults to as well if the
>> input image material provides no embedded resolution information.
> Yep... until you want to make a DVD (none of NTSC and PAL have square
(Actually NTSC and PAL don't have any pixels at all; they just have
contiguous scan lines with a specified maximum signal frequency. But I
guess you're right about NTSC/PAL compatible DVD content. ;))
Even so, I'd expect that even contemporary professional or
semi-professional video editing software will presume input images to
have square pixels - unless explicitly told otherwise by the image
header, the user, or the software administrator.
Also, when you export a PAL or NTSC DVD movie sequence as a series of
images, I'd expect any sane video handling software to write them in a
square-pixel format, even when additional resolution information is
written to the image header. (Again, unless told otherwise of course)
Post a reply to this message