18 Nov
2017
18 Nov
'17
6:37 p.m.
On 11/18/17, Michael Koch <astroelectronic@t-online.de> wrote:
In the documentation for the displace filter is written: "The second input specifies how much to displace pixels along the x-axis, ..." If I understand this right, a video input file is "misused" for storing the displacement (instead of brightness). Does that mean that only positive displacements are possible?
No, value stored in pixels is 0 - 255. One just substract each possible value with 128 and now you have [-128, 127].