On 2/25/19, Michael Koch <[email protected]> wrote: > Which is the recommended filter for a very strong contrast enhancement, > up to a factor of 10? > > The eq=contrast=... filter allows only a maximum of 2. Could this be > changed to allow higher values? > As a workaround I'm using 3 or 4 cascaded eq filters.
Is your source RGB or YUV? There are missing filters for gamma/saturation/hue/contrast in RGB. > > I did also try geq=r='5*r(X,Y)':g='5*g(X,Y)':b='5*b(X,Y)' > but this filter is slow and it seems there is no limiter when an > overflow occurs. > > Are there any other filters for strong contrast enhancement? > > Thanks, > 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".
