Graphics program for sharpening images

[balanga]

Does any know of any graphics program which is good at sharpening blurry images?

 

[SirDice]

There should be a tool in the ImageMagick collection that can sharpen images.

 

[Argentum]

Does any know of any graphics program which is good at sharpening blurry images?

graphics/gimp3-app

 

[freezr]

Blurry images cannot be sharpened.

With this said, you can use Gimp3 for fine visual control or Image Magick.

I am big fan of High Pass method:

4.4. High Pass

AI tools are better at sharpening images.

 

[Charlie_]

This is an example using graphics/ImageMagick7.

What is the difference between convert -unsharp and convert -adaptive-sharpen in ImageMagick

I understand that the the convert -unsharp from ImageMagick is using Unsharp Masking to sharpen the image. What kind of algorithm is behind convert -adaptive-sharpen? When I want to sharpen my lans...

stackoverflow.com

 

[cracauer@]

graphics/gmic is a commandline tool for this kind of work that is more powerful than ImageMagick. It has various sharpening algorithms.

 

[balanga]

I've just installed GIMP for the first time and it seems what I would call 'full featured' so I have no idea where to find an image sharpening feature.

Anyone know where I should look?

 

[tingo]

Try Filters, Enhance, ...

 

[balanga]

What does this say?

 

[fernandel]

View attachment 26156
What does this say?

did you install
graphics/gimp3-app or gimp2? You have also g'mic-qt plugin for Gimp3.
open your picture and look at Filters.

 

[penguinslayer]

View attachment 26156
What does this say?

Be sure to drink your ovaltine?

 

[Espionage724]

View attachment 26156
What does this say?

I'd be impressed if anything public could do something with that (might require manual high-zoom and individual pixel clean-up)

View: https://youtu.be/I_8ZH1Ggjk0?si=MxRpGL4XK76ravfQ&t=30

 

[T-Aoki]

graphics/waifu2x-ncnn-vulkan
Examples can be seen upstream.

If you're OK with 2x (, 4x, 8x, ...) upscaling, maybe graphics/realesrgan-ncnn-vulkan gives better results.
Examples can be seen upstream.

Note that the latter cannot generate sane outputs with some PNGs, maybe some color space are NOT supported? Workaround may be reading the problematic PNG file with gimp and simply save with its default PNG configurations. Krita saves as problematic configuration at least by default.

 

[waym0re]

Something something .com. It ends with .com.
Also, doesn't seem like there's an @, so it's not an email.
I think the last three letters are ess. So *ess.com
Like fitness.com.
You can't recover entropy. It's a rule of physics. So something blurry can't be unblurred. Unblurring isn't even a word, which it would be if it were possible. You can use AI to hallucinate an answer, or look at it again an again and arrive at different results. It's like white noise. If you listen over and over to white noise, you'll hear voices. It's not real. It's hallucinations.

 

[Kai Burghardt]

Oh man, XY problem. This isn’t really about sharpening images (like pics taken with a cheap camera). It’s about how little information you need to reconstruct the original, like depixelation. My guess is: C… Service US americanexpress.com and that’s evidently based on the assumption it was English and Latin script.​

 

[fernandel]

balanga did you try to instala gmic-qt-gimp3 plugin and try to use sharpening? There are so many options.

 

[sidetone]

You could sharpen images, but once you do, it's no longer the same image. It's a recreation of that original image. It depends on if you want the original, then you'll have to stick with the original blurry image. If you use a program with an algorithm or ai, it's a recreation. ImageMagick is the one I know of.

For me, if it's for entertainment, then upsampling is perfect. Taking a 16bit audio, and upsampling it to 24bit will create artificial parts to the music, which may vary slightly on each pass, which aren't the original. If it's for presentation, upsampling is fine. If it's for documentation or showing results, I'll stick with the blurry image.

 

[fernandel]

I don't know if is image important as image or balanga want to read what is on.

 

[bgavin]

Topaz Labs is a leader in this area.
ON1 uses AI tools for this purpose.

I own Photoshop CS6EE and ON1, but not using ON1 because it constantly requires latest Windows to run, and I have zero love for, or desire to, install Win11 which is being replaced again in 2026.10