Color matching and prediction: color correction tool v1.3 released! — Page 37

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:

Reference:

Color match:

http://www.framecompare.com/image-compare/screenshotcomparison/WWLNNN8X

LUT:

https://drive.google.com/file/d/1Km1UAXeeBd5G1rB9ffcgYVPBGEr0B7CX/view?usp=sharing

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.

hakkaibills93 said:

you have effectively recover dark things but you now less see things in the white things as you can’t almost not see anymore the details i was talking before
that’s why your references have to be “perfect” else you’ll loose something if you don’t have perfect reference you’ll have to alter manually colors and work with tone yourself to recover the dark things without destroying the white

That is what the program was supposed to do. It successfully matched the color of the star war blu-ray to the reference. The whites in the matched image was blown out because the white in the reference image was also blown out. Your observation is really off.

From my tests, it was more like the priority decision of the color matching has to do with the size of the color. If I have a big chunk of red in the image, that red will have higher matching priority than some smaller reds. For example, in my comparison images, if I make a montage reference by stacking this current shot and a close up shot of the yellow shoes and then use that resulting LUT on this current shot, the yellow shoe would be matched.

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.

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.

lansing said:

hakkaibills93 said:

you have effectively recover dark things but you now less see things in the white things as you can’t almost not see anymore the details i was talking before
that’s why your references have to be “perfect” else you’ll loose something if you don’t have perfect reference you’ll have to alter manually colors and work with tone yourself to recover the dark things without destroying the white

That is what the program was supposed to do. It successfully matched the color of the star war blu-ray to the reference. The whites in the matched image was blown out because the white in the reference image was also blown out. Your observation is really off.

From my tests, it was more like the priority decision of the color matching has to do with the size of the color. If I have a big chunk of red in the image, that red will have higher matching priority than some smaller reds. For example, in my comparison images, if I make a montage reference by stacking this current shot and a close up shot of the yellow shoes and then use that resulting LUT on this current shot, the yellow shoe would be matched.

yes sorry i am off of the topic but i wanted to advice you that using not perfect references as the funimation bluray will give you innacurate result that’s all

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?

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

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?

Williarob said:

Just create a second LUT and apply it after the first one. It should not affect the behaviour of the first LUT unless it is modifying the same color, and if that is the case you want it to modify that color anyway. LUTs can be stacked, it’s pretty neat, and really easy in After Effects of Resolve.

I tried it, I cropped out just the yellow block and did a color match, and then apply it on top of the first LUT in photoshop, but the whole image turned greenish.

target:

reference:

result after global LUT + shoe LUt:

lansing said:

Williarob said:

Just create a second LUT and apply it after the first one. It should not affect the behaviour of the first LUT unless it is modifying the same color, and if that is the case you want it to modify that color anyway. LUTs can be stacked, it’s pretty neat, and really easy in After Effects of Resolve.

I tried it, I cropped out just the yellow block and did a color match, and then apply it on top of the first LUT in photoshop, but the whole image turned greenish.

target:

reference:

result after global LUT + shoe LUt:

You shouldn’t just zoom on the yellow. You zoom around the yellow in both the test and reference frames with the same cropping, such that you keep as many of the other colors as possible. The algorithm cannot guess how you want the other colors to look, so you need to include them. There’s no guarantee it will work, because if you leave out one part of the frame, it may alter the unique colors of those parts as a conseqience of getting the correct yellow.

DrDre said:

lansing said:

Williarob said:

Just create a second LUT and apply it after the first one. It should not affect the behaviour of the first LUT unless it is modifying the same color, and if that is the case you want it to modify that color anyway. LUTs can be stacked, it’s pretty neat, and really easy in After Effects of Resolve.

I tried it, I cropped out just the yellow block and did a color match, and then apply it on top of the first LUT in photoshop, but the whole image turned greenish.

target:

reference:

result after global LUT + shoe LUt:

There’s no guarantee it will work, because if you leave out one part of the frame, it may alter the unique colors of those parts as a conseqience of getting the correct yellow.

Looks like that’s the case for me. I redo the crop on the shoes with a bigger surrounding, the yellow was matched but it also affected the rest of the image.

Dre, any news on the batch processing?

Yeah, I’ve been working on the new color matching algorithm, and some other unrelated so it may take a while. The next version of the tool is going to be a major overhaul.

Just reread the first post. Ignore this.

Hi I ran into problem on color matching 2 color palettes, every color matched except that one on row 3 column 2, it always turn to pink on the result.

http://www.framecompare.com/image-compare/screenshotcomparison/0E1NNN8U

lansing said:

Hi I ran into problem on color matching 2 color palettes, every color matched except that one on row 3 column 2, it always turn to pink on the result.

http://www.framecompare.com/image-compare/screenshotcomparison/0E1NNN8U

This is a discrete color matching problem. The color matching algorithm assumes images with a continuous color distributions with smooth color gradients, so it’s not perfectly suited for this sort of problem.

However, the explanation is in row 5 column 1, which in the source image has almost the same color as row 3 column 2. That color has to become a bright pink, and so row 3 column 2 also becomes pink.

DrDre said:

lansing said:

Hi I ran into problem on color matching 2 color palettes, every color matched except that one on row 3 column 2, it always turn to pink on the result.

http://www.framecompare.com/image-compare/screenshotcomparison/0E1NNN8U

This is a discrete color matching problem. The color matching algorithm assumes images with a continuous color distributions with smooth color gradients, so it’s not perfectly suited for this sort of problem.

However, the explanation is in row 5 column 1, which in the source image has almost the same color as row 3 column 2. That color has to become a bright pink, and so row 3 column 2 also becomes pink.

So does that mean the problem can be resolved if I can sort the order of the color in the source image into one long smooth gradient before passing to the program?

lansing said:

DrDre said:

lansing said:

Hi I ran into problem on color matching 2 color palettes, every color matched except that one on row 3 column 2, it always turn to pink on the result.

http://www.framecompare.com/image-compare/screenshotcomparison/0E1NNN8U

This is a discrete color matching problem. The color matching algorithm assumes images with a continuous color distributions with smooth color gradients, so it’s not perfectly suited for this sort of problem.

However, the explanation is in row 5 column 1, which in the source image has almost the same color as row 3 column 2. That color has to become a bright pink, and so row 3 column 2 also becomes pink.

So does that mean the problem can be resolved if I can sort the order of the color in the source image into one long smooth gradient before passing to the program?

It might be…

DrDre said:

lansing said:

DrDre said:

lansing said:

Hi I ran into problem on color matching 2 color palettes, every color matched except that one on row 3 column 2, it always turn to pink on the result.

http://www.framecompare.com/image-compare/screenshotcomparison/0E1NNN8U

This is a discrete color matching problem. The color matching algorithm assumes images with a continuous color distributions with smooth color gradients, so it’s not perfectly suited for this sort of problem.

However, the explanation is in row 5 column 1, which in the source image has almost the same color as row 3 column 2. That color has to become a bright pink, and so row 3 column 2 also becomes pink.

So does that mean the problem can be resolved if I can sort the order of the color in the source image into one long smooth gradient before passing to the program?

It might be…

I isolated that two color and do the testing on the order, but the program didn’t run.

source:
https://i.imgur.com/58gYXRb.png

ref:
https://i.imgur.com/KmO21IJ.png

lansing said:

DrDre said:

lansing said:

DrDre said:

lansing said:

Hi I ran into problem on color matching 2 color palettes, every color matched except that one on row 3 column 2, it always turn to pink on the result.

http://www.framecompare.com/image-compare/screenshotcomparison/0E1NNN8U

This is a discrete color matching problem. The color matching algorithm assumes images with a continuous color distributions with smooth color gradients, so it’s not perfectly suited for this sort of problem.

However, the explanation is in row 5 column 1, which in the source image has almost the same color as row 3 column 2. That color has to become a bright pink, and so row 3 column 2 also becomes pink.

So does that mean the problem can be resolved if I can sort the order of the color in the source image into one long smooth gradient before passing to the program?

It might be…

I isolated that two color and do the testing on the order, but the program didn’t run.

source:
https://i.imgur.com/58gYXRb.png

ref:
https://i.imgur.com/KmO21IJ.png

The algo matches color distributions. With two colors there is not much of a distribution, so I don’t think that will work.

Williarob said:

DrDre said:

lansing said:

DrDre said:

lansing said:

DrDre said:

lansing said:

Hi I ran into problem on color matching 2 color palettes, every color matched except that one on row 3 column 2, it always turn to pink on the result.

http://www.framecompare.com/image-compare/screenshotcomparison/0E1NNN8U

This is a discrete color matching problem. The color matching algorithm assumes images with a continuous color distributions with smooth color gradients, so it’s not perfectly suited for this sort of problem.

However, the explanation is in row 5 column 1, which in the source image has almost the same color as row 3 column 2. That color has to become a bright pink, and so row 3 column 2 also becomes pink.

So does that mean the problem can be resolved if I can sort the order of the color in the source image into one long smooth gradient before passing to the program?

It might be…

I isolated that two color and do the testing on the order, but the program didn’t run.

source:
https://i.imgur.com/58gYXRb.png

ref:
https://i.imgur.com/KmO21IJ.png

The algo matches color distributions. With two colors there is not much of a distribution, so I don’t think that will work.

Perhaps this explains why the program wouldn’t run for me when I tried to match the end credits of Star Wars.

I think so. It might work in some cases, but it’s a problem that’s ouside of the scope of the algorithm.

DrDre said:

lansing said:

DrDre said:

lansing said:

DrDre said:

lansing said:

Hi I ran into problem on color matching 2 color palettes, every color matched except that one on row 3 column 2, it always turn to pink on the result.

http://www.framecompare.com/image-compare/screenshotcomparison/0E1NNN8U

This is a discrete color matching problem. The color matching algorithm assumes images with a continuous color distributions with smooth color gradients, so it’s not perfectly suited for this sort of problem.

However, the explanation is in row 5 column 1, which in the source image has almost the same color as row 3 column 2. That color has to become a bright pink, and so row 3 column 2 also becomes pink.

So does that mean the problem can be resolved if I can sort the order of the color in the source image into one long smooth gradient before passing to the program?

It might be…

I isolated that two color and do the testing on the order, but the program didn’t run.

source:
https://i.imgur.com/58gYXRb.png

ref:
https://i.imgur.com/KmO21IJ.png

The algo matches color distributions. With two colors there is not much of a distribution, so I don’t think that will work.

I have found the reason for my problem, that’s because I had stacked way too many color adjustments into one color palette, trying to do the one LUT for all scenes thing. I have tried to manually alter each color with 3DLut Creator and I actually see the problem on the curve. The more adjustment points I have on the curve, the harder I can move them and the less accurate they are.

Is it possible to use in a command line to batch convert frames instead of just applying a lut.