I suspect you could do this with a lookup table; consider the lut3d filter. How you'd build the lookup table would be another matter.
P On Wednesday, 4 March 2020, 12:05:16 GMT, Michael Koch <[email protected]> wrote: Am 04.03.2020 um 12:44 schrieb Mark Filipak: > On 03/04/2020 05:52 AM, Michael Koch wrote: >> Hi, >> >> is there any known workaround for making a red-shift or a blue-shift? >> I mean shifting the visible spectrum towards red or blue. In the >> middle of the spectrum this can be realized by the "hue" filter, but >> at the end of the spectrum I want a different behaviour. I want a >> shift instead of a rotation. Colors at the end of the visible >> spectrum must be shifted to (or from) black. >> >> Michael > > Hey, Michael, (seriously this time), can't you diddle luminance at the > same time as hue? As far as I know, there is no filter for decreasing the luminance as a function of hue. Although a complicated workaround with "geq" filter might be possible. I'll try to figure it out. Michael _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
