I have a lots of searching but i coudn't find the FFMPEG command for Monochrome effect and Haze Effect on video.
Orignal
Haze Effect
Monochrome Effect (This is not sepia effect)
Your help would be appreciated.
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How to increase contrast via command ?, and what about monochrome effect.?– Nikunj ParadvaMay 29, 2019 at 18:48
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So I assume you want to increase the contrast for your effect you called "haze"? Did you use Photoshop to create these previews?– lloganMay 29, 2019 at 18:50
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yes if it got same result then it ll be fine.– Nikunj ParadvaMay 29, 2019 at 18:51
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actually i found this effect from github.com/MasayukiSuda/ExoPlayerFilter, and it was a preview screenshot that and put it here. i am not making it in Photoshop.– Nikunj ParadvaMay 29, 2019 at 18:56
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1 Answer
Monochrome
One method is to use the hue filter to desaturate.
ffmpeg -i input -vf hue=s=0 -c:a copy output
ffplay -vf hue=s=0 input
De-haze (increase contrast)
The curves filter has several presets including a few that increase contrast. You can also make your own curves in Photoshop, export the ACV file and use it via the psfile option in the curves filter.
ffmpeg -i input -vf curves=preset=increase_contrast -c:a copy output
ffplay -vf curves=preset=increase_contrast input
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Thanks alot for your answer @llogan, as per your answer monochrome effect is same as grayscale effect, can you make command like my monochrome out put? May 30, 2019 at 4:03
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and second thing How to use ffplay for live preview in android, i am really stuck to do that in android. any solution? May 30, 2019 at 7:31
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@NikunjParadva You are showing the sepia image from the link you provided (refer to the animation in the link), but you said you wanted monochrome which I assumed meant a grayscale. Upon viewing the link again I see "monochrome" is actually a grayscale with more contrast. But now it seems you actually want sepia? I don't know anything about Android.– lloganMay 30, 2019 at 17:28