Flexy
20th September 2006, 05:09
i have the hardest time finding a filter which does a proper
white balance/white-point/gray-point/black point operation.
I have two white-balance filters, but they dont work right. The filters are "ACOBW and NDF" "and" Whitebalance V2.0 beta 2". I also have "RGB equalize"...but it doesnt work as i want either.
THE PROBLEM:
I need a filter using Virtualdub(mod) or Avisynth which can do a whitepoint on a white section of a frame...then w black/gray point on the darker sections.
TYPICAL scenario is that the WHITE/bright parts of a video are PINKish......but the dark parts are GREENish...so the WB differs depending on brightness levels.
I need something like a custom LUT/color curve applied to a video. <--- non linear !!!
So...i read about similiar problems people have...and one uses Photoshop and a single RGB frame (which he saved from the video)...then he makes a new color-curve with Photoshop, new WPoints/GPointss/BPoints (according to different birightness levels)...then saves this custom color-curve as a file and applies this with some avisynth function to the video (I think it was Avisynth/RGBlut function).
() i do NOT have photoshop, i have paintshop. I dont think i can save a custom colorcurve with painthshop.
Besides, this method looks like too much effort...there MUST be one filter which does proper white-balance ???
(*) any pointer to a standalone tool would help also (independent from virtualdub)
(*) or a link to a good, recent collection of vdub(mod) filters
thanks
white balance/white-point/gray-point/black point operation.
I have two white-balance filters, but they dont work right. The filters are "ACOBW and NDF" "and" Whitebalance V2.0 beta 2". I also have "RGB equalize"...but it doesnt work as i want either.
THE PROBLEM:
I need a filter using Virtualdub(mod) or Avisynth which can do a whitepoint on a white section of a frame...then w black/gray point on the darker sections.
TYPICAL scenario is that the WHITE/bright parts of a video are PINKish......but the dark parts are GREENish...so the WB differs depending on brightness levels.
I need something like a custom LUT/color curve applied to a video. <--- non linear !!!
So...i read about similiar problems people have...and one uses Photoshop and a single RGB frame (which he saved from the video)...then he makes a new color-curve with Photoshop, new WPoints/GPointss/BPoints (according to different birightness levels)...then saves this custom color-curve as a file and applies this with some avisynth function to the video (I think it was Avisynth/RGBlut function).
() i do NOT have photoshop, i have paintshop. I dont think i can save a custom colorcurve with painthshop.
Besides, this method looks like too much effort...there MUST be one filter which does proper white-balance ???
(*) any pointer to a standalone tool would help also (independent from virtualdub)
(*) or a link to a good, recent collection of vdub(mod) filters
thanks