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Show HN: Open source colorizing grayscale images with NN

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Re: Show HN: Open source colorizing grayscale images with NN

#11

I'd apply it to an old B&W film to show off. Imagine Ben Hur or Citizen Kane in color!

> Ben Hur

The widely known Ben Hur (1959), the one with the chariot race, already is in colour. Did you mean "Ben-Hur: A Tale of the Christ" from 1925?

Re: Show HN: Open source colorizing grayscale images with NN

#12
post #5

I love the last one. "But you didn't say what colour it was, so I made it a red truck."

Also the lighthouse's sky: "That's sky, it's surely blue!"

Generally it's interesting to see nn thinking out missing details. I'd like to see images with an element deleted and a nn filling in black spots to see what level of shape recognition could do.

Re: Show HN: Open source colorizing grayscale images with NN

#15

I'd apply it to an old B&W film to show off. Imagine Ben Hur or Citizen Kane in color!

I see a potential problem with moving pictures - the neural network might decide that while red was an appropriate color for the truck in the last frame, blue is more likely in this frame.

You can use the previous few frames for fixing this problem for videos

Re: Show HN: Open source colorizing grayscale images with NN

#16
post #15

Earlier quoted context omitted.

I see a potential problem with moving pictures - the neural network might decide that while red was an appropriate color for the truck in the last frame, blue is more likely in this frame.

You can use the previous few frames for fixing this problem for videos

There might be a few scenes in between the viewings of the truck.

Re: Show HN: Open source colorizing grayscale images with NN

#17
post #15

Earlier quoted context omitted.

You can use the previous few frames for fixing this problem for videos

There might be a few scenes in between the viewings of the truck.

I'd imagine that many people wouldn't even notice (unless the truck's color is part of the plot)

Re: Show HN: Open source colorizing grayscale images with NN

#19
post #15

Earlier quoted context omitted.

You can use the previous few frames for fixing this problem for videos

There might be a few scenes in between the viewings of the truck.

You're right, it would be a fun side effect to see the color change between different scenes :) I guess there's not enough in commercial interest in fixing these problems, but it can be probably done with the current algorithms. Precise 3D reconstruction is much more important than colour reconstruction.
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