On 26 Jul 2001 08:14:13 -0300, Gleicon S. Moraes wrote: > Does the interpolation works well to add even+odd fields ? Last time I saw > it, using motion objects, I got a blur in the resulting image ( even filed > was slightly shifted). > Well, I was not too clear. What I intend to do is not interpolate (add/mix lines) odd+even fieds. My intention is to display/store even fields untouched but change the odd ones so that the half black line is not displayed and the image does not suffer from a half-pixel vertical displacement. I know it is possible to do so with an interpolation routine which uses the captured odd frame to approximate what would be the values of the even field pixel lines. Does anyone have any information on this? Thanks, Miguel > regards. > > ----- Original Message ----- > From: "Miguel Garcia Lopez" <miguelgl@xxxxxxxxxxxxxxxx> > To: "v4l2" <video4linux-list@xxxxxxxxxx> > Sent: Thursday, July 26, 2001 7:47 AM > Subject: Turning odd fields into even. > > > > > > Hi all, > > > > I am capturing odd and even frames from a custom bt878-based board and > > switching from 16 external video inputs by means of an external video > > multiplexor. Since the input signals are not syncronised, I randomly > capture and > > display both odd and even fields (I detect the field type with external > > aditional HW). > > > > I am very interested in a routine wich could interpolate odd fields to > > even ones so that we could get rid of the half black line and the > > half-pixel vertical image displacement. Has anyone out there done > > anything similar? > > > > Thanks in advance, > > > > Miguel
