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azuuru elaina_(majo_no_tabitabi) majo_no_tabitabi scanning_artifacts

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fireattack
almost 4 years ago
The filtering is way too aggressive.
marechal
almost 4 years ago
fireattack said:
The filtering is way too aggressive.
looks like upscaling to me
kulipator
almost 4 years ago
marechal said:
looks like upscaling to me
It is indeed a scanned image,I applied noise reduction to it,This intensity of noise reduction can eliminate scanning noise,As you can see, the words are blurred.I am currently looking for an HD scan of this image.
marechal
almost 4 years ago
kulipator said:
It is indeed a scanned image,I applied noise reduction to it,This intensity of noise reduction can eliminate scanning noise,As you can see, the words are blurred.I am currently looking for an HD scan of this image.
Thanks for clarifying, I didn't know that noise reduction filters can blur text in ways that look like these. The rest of the image looks pretty good though, may I ask what de-noise filter are you using?
kulipator
almost 4 years ago
marechal said:
Thanks for clarifying, I didn't know that noise reduction filters can blur text in ways that look like these. The rest of the image looks pretty good though, may I ask what de-noise filter are you using?
It's waifu2x extension,People always like to use it to upscale images,But the software does not do very well in that respect.For image noise reduction, it is almost perfect,It uses AI technology to reduce image noise,It can remove scanning noise to the greatest extent，The text will be blurred because the noise reduction engine I chose has a blur effect,But for some images, using it for noise reduction may not be very effective, after all, it is not a real human operation, it may make the image very unnatural.
You can download it on github.
marechal
almost 4 years ago
kulipator said:

It's waifu2x extension,People always like to use it to upscale images,But the software does not do very well in that respect.For image noise reduction, it is almost perfect,It uses AI technology to reduce image noise,It can remove scanning noise to the greatest extent，The text will be blurred because the noise reduction engine I chose has a blur effect,But for some images, using it for noise reduction may not be very effective, after all, it is not a real human operation, it may make the image very unnatural.
You can download it on github.
Thank's for the guidance. I've not heard about this extension before, It definitely looks interesting, I'll give it a try :)
fireattack
almost 4 years ago
You can mask the text with its original form in Photoshop, pretty trivial. Still, even the art itself is overfiltered. Try to use a weaker strength next time.

On a general note, using waifu2x directly on scanned (screening) images doesn't really work very well. I usually filter it with conventional filter a little bit before feeding into waifu2x.