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Post #1154684

Author
lansing
Parent topic
Color matching and prediction: color correction tool v1.3 released!
Link to post in topic
https://originaltrilogy.com/post/id/1154684/action/topic#1154684
Date created
5-Jan-2018, 7:45 PM

DrDre said:

lansing said:

DrDre said:

lansing said:

DrDre said:

lansing said:

hakkaibills93 said:

Dragon Ball Kai 1-98 use a differrent color palette than the dragon ball z series, all colors channel aren’t exactly the same that’s why you can’t duplicate z colors to them.
For 99 to the end you can for sure use as it was not done the same way

about dragon ball z bluray , colors are almost okay, film also have tint in the white and some slight alteration like the yellow being too much green and other slight things and yes there is crushed black, overbrightness and excessive saturation

movies also need color correction for what i have seen from the funi movies bluray

your references are good but for the kai 1-98 just keep the color exactly as they are

i already tried this tools and it only fail when the source you want to correct isn’t suppose to have the same colors (i tried with the dbz first episode preview that have goku arm in red (color error) that was corrected in the episode…i tried to color match the dbox footage with the broadcast colors and it didn’t change the arm color cause it wasn’t suppose to have this color

The issue I have with the program is that the algorithm tends to miss color in smaller areas of the image. This example shows it:
http://www.framecompare.com/image-compare/screenshotcomparison/0FCNNN8U

The big areas like the sky, the mountain and trees are all matched, but smaller areas like the wrist band, Goten’s robe, the rocks, Videl’s shoes are all missed.

I would advice using more color spaces, because it can definitely be much improved. Here a used 100 color spaces with the smoothing parameter set to 0.01:

It takes a little while to get some experience how to use the tool, but it should give satisfactory results most of the time. In general more color spaces will produce a more accurate result, but it will be slower. Increasing the smoothing parameter reduces artifacts, but also the accuracy, such that you often need more color spaces for a better result.

Um I am using the 64 bit version and it stated 250 color space instead of 100, and the result of the 250 color space is exactly the same as 10, looks like a bug there.

Yeah I have already improved my workflow to get better accuracy, such as auto-aligning and cropping the images with photoshop, which improve the accuracy by some noticeable margins. I just want to see if it can be improved on the color matching of those smaller areas, like the shoes and rocks.

The tool was never tested for 64 bit, so I can’t comment on that. Williarob compiled a 64 bit version as a favour, but beyond that it’s at this point not supported. Either way I got a better match with the settings I used for the 32 bit version.

How would you deal with those smaller areas?

There are three options:

  1. More color spaces
  2. A lower smoothing factor
  3. After performing a global correction, zoom in on the part you want to improve

What do you mean by zoom in? For example I want to match the yellow shoes after the first color match. I zoom in and do another color match just on the shoes, but then how do I stack the second match on top of the first?