VideoHelp Forum


Try NordVPN to access Netflix or other streaming services from any country and also surf safely!
+ Reply to Thread
Results 1 to 7 of 7
Thread
  1. In Adobe Photoshop I can do Auto-Tone and it improves the picture quality. Is there a way to do this in FFMPEG? I'm using a color curves .acv file to remove fog/haze, could the .acv also be designed to correct the color tone? Or is there another way using FFMPEG?

    Here is a before and after using the Auto-Tone
    Image Attached Thumbnails Click image for larger version

Name:	before.jpg
Views:	114
Size:	316.1 KB
ID:	46752  

    Click image for larger version

Name:	after.jpg
Views:	88
Size:	342.2 KB
ID:	46753  

    Last edited by MikeS; 21st Sep 2018 at 11:48.
    Quote Quote  
  2. ffmpeg seems like the wrong tool for the job.
    Quote Quote  
  3. I'm using FFMPEG to stream from the IP camera to Youtube.
    Quote Quote  
  4. Member
    Join Date
    Apr 2018
    Location
    Croatia
    Search Comp PM
    There is color curves filter in FFmpeg. see curves filter documentation.
    Quote Quote  
  5. Ok I think I figured it out. When I created the curves file in Photoshop I was using the RGB slider. If I use the pull down and adjust the blue, I can get it to look like the Auto-Tune function.
    Quote Quote  
  6. Screen shot of using ffmpeg to fix the color tone using an .acv file exported from Photoshop.
    Image Attached Thumbnails Click image for larger version

Name:	Skärmbild från 2018-09-22 18-54-31.png
Views:	338
Size:	1.73 MB
ID:	46760  

    Quote Quote  
  7. I tried using the RGB blue slider and found it inconvenient. Lots of futzing around. I found that the presets did a better job anyway and gave a simple one step result, like Auto Tone. I liked the results from the Strong Contrast preset best but Increase Contrast was also good. ffmpeg result is identical to Photoshop:

    Strong Contrast preset
    Image Attached Thumbnails Click image for larger version

Name:	before - ffmpeg - curves - Strong Contrast.jpg
Views:	8
Size:	152.1 KB
ID:	59335  

    Click image for larger version

Name:	PS Curves - Strong Contrast.png
Views:	7
Size:	76.1 KB
ID:	59336  

    Quote Quote  



Similar Threads