hue (1) - hue angle¶
Watch on youtube.comSpecify the hue angle as a number of radians¶
hue=H=0.125
00:00:00#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=0.125' \
-an "${pref}_${ifnb}.mp4"
hue=H=0.250
00:00:01#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=0.250' \
-an "${pref}_${ifnb}.mp4"
hue=H=0.375
00:00:03#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=0.375' \
-an "${pref}_${ifnb}.mp4"
hue=H=0.500
00:00:04#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=0.500' \
-an "${pref}_${ifnb}.mp4"
hue=H=0.625
00:00:06#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=0.625' \
-an "${pref}_${ifnb}.mp4"
hue=H=0.750
00:00:07#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=0.750' \
-an "${pref}_${ifnb}.mp4"
hue=H=0.875
00:00:09#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=0.875' \
-an "${pref}_${ifnb}.mp4"
hue=H=1.000
00:00:10#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=1.000' \
-an "${pref}_${ifnb}.mp4"
hue=H=1.125
00:00:12#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=1.125' \
-an "${pref}_${ifnb}.mp4"
hue=H=1.250
00:00:13#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=1.250' \
-an "${pref}_${ifnb}.mp4"
hue=H=1.375
00:00:14#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=1.375' \
-an "${pref}_${ifnb}.mp4"
hue=H=1.500
00:00:16#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=1.500' \
-an "${pref}_${ifnb}.mp4"
hue=H=1.625
00:00:17#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=1.625' \
-an "${pref}_${ifnb}.mp4"
hue=H=1.750
00:00:19#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=1.750' \
-an "${pref}_${ifnb}.mp4"
hue=H=1.875
00:00:20#! /bin/sh
ifn="Pexels_2880_2877_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=1.875' \
-an "${pref}_${ifnb}.mp4"
Using expression¶
hue=H=(t/20*2.0)
In this example, since “Pexels_2880_2877.mp4” is a video of 20 seconds, it instructs to change by \(2\pi / 20\) per second.
00:00:22#! /bin/sh
ifn="Pexels_2880_2877.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"
ffmpeg -y -i "${ifn}" -vf 'hue=H=(t/20*2.0)' \
-an "${pref}_${ifnb}.mp4"