ffmpeg frei0r filter 参数及效果
ffmpeg中frei0r滤镜基本使用方法
ffplay -vf frei0r=filter_name=filter_params:filter_params:...
在Windows系统ffmpeg使用frei0r时需要加环境变量 FREI0R_PATH=frei0r安装目录
单击图片复制滤镜命令
ffmpeg使用frei0r参考 http://ffmpeg.org/ffmpeg-filters.html#frei0r-1
frei0r的详细参数说明参考 http://www.mltframework.org/bin/view/MLT/PluginsFilters
![原图](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o__Sample.gif)
![-vf frei0r=3dflippo:0.85:0.85:0.85:0.85:0.85:0.85:0.85:0.85:y:y:n](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_3dflippo.gif)
![-vf frei0r=alpha0ps=0.35:y:0.35:0.35:0.35:y](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_alpha0ps.gif)
![-vf frei0r=b:1](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_b.gif)
![-vf frei0r=balanc0r:0x101000:0.1](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_balanc0r.gif)
![-vf frei0r=baltan](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_baltan.gif)
![-vf frei0r=brightness:0.7](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_brightness.gif)
![-vf frei0r=c0rners:0.444:0.777:0.555:0.111:0.888:0.111:0.222:0.666:y:0.5:0.5:0.1:y:0.5:0.5](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_c0rners.gif)
![-vf frei0r=cartoon:1:0.2](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_cartoon.gif)
![-vf frei0r=colgate:0/256/0:0.8](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_colgate.gif)
![-vf frei0r=coloradj_RGB:0.9:0.1:0.9:0.2:y:y:0.2](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_coloradj_RGB.gif)
![-vf frei0r=colordistance:0x0000AF](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_colordistance.gif)
![-vf frei0r=colorhalftone:0.1:0.1:0.1:0.1](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_colorhalftone.gif)
![-vf frei0r=colorize:0.6:0.8:0.6](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_colorize.gif)
![-vf frei0r=contrast0r:0.9](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_contrast0r.gif)
![-vf frei0r=delaygrab](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_delaygrab.gif)
![-vf frei0r=distort0r:0.02:0.2](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_distort0r.gif)
![-vf frei0r=dither:0.1:0.1](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_dither.gif)
![-vf frei0r=emboss:0.1:0.5:0.1](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_emboss.gif)
![-vf frei0r=facebl0r](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_facebl0r.gif)
![-vf frei0r=facedetect](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_facedetect.gif)
![-vf frei0r=flippo:y:y](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_flippo.gif)
![-vf frei0r=g](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_g.gif)
![-vf frei0r=gamma:0.6](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_gamma.gif)
![-vf frei0r=glow:0.8](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_glow.gif)
![-vf frei0r=hueshift0r:0.5](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_hueshift0r.gif)
![-vf frei0r=IIRblur:0.4:0.8:y](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_IIRblur.gif)
![-vf frei0r=invert0r](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_invert0r.gif)
![-vf frei0r=letterb0xed:0.2:y](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_letterb0xed.gif)
![-vf frei0r=lightgraffiti](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_lightgraffiti.gif)
![-vf frei0r=luminance](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_luminance.gif)
![-vf frei0r=nosync0r:0.5](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_nervous.gif)
![-vf frei0r=nervous:0.6](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_nosync0r.gif)
![-vf frei0r=pixeliz0r:0.03:0.03](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_pixeliz0r.gif)
![-vf frei0r=posterize](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_posterize.gif)
![-vf frei0r=pr0be:0.1:0.1:0.1:0.1:0.1:y:y:y](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_pr0be.gif)
![-vf frei0r=pr0file](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_pr0file.gif)
![-vf frei0r=primaries:1](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_primaries.gif)
![-vf frei0r=r](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_r.gif)
![-vf frei0r=saturat0r:0.5](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_saturat0r.gif)
![-vf frei0r=scanline0r](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_scanline0r.gif)
![-vf frei0r=sharpness:0.9:0.9](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_sharpness.gif)
![-vf frei0r=sigmoidaltransfer:0.5:0.8](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_sigmoidaltransfer.gif)
![-vf frei0r=sobel](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_sobel.gif)
![-vf frei0r=softglow:0.65:0.75:0.8:0.8](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_softglow.gif)
![-vf frei0r=sopsat:0.3:0.3:0.3:0.3:0.3:0.1:0.1:0.1:0.1:0.1:0.1:0.1:0.1](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_sopsat.gif)
![-vf frei0r=squareblur:0.03](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_squareblur.gif)
![-vf frei0r=threshold0r:0.4](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_threshold0r.gif)
![-vf frei0r=tint0r:0xff0000:0x0000ff:0.6](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_tint0r.gif)
![-vf frei0r=twolay0r](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_twolay0r.gif)
![-vf frei0r=vertigo:0.02:0.2](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_vertigo.gif)
![-vf frei0r=vignette:0.2:0.3:0.4](https://images.cnblogs.com/cnblogs_com/nlsoft/478267/o_vignette.gif)