Learn about Blurring & Denoising
What is Median Blurring and Denoising?
Median blurring is a noise reduction technique used in image processing to remove unwanted speckles or grain, especially effective against "salt-and-pepper" noise. Instead of averaging pixels like Gaussian blur, it replaces each pixel's value with the median of the surrounding pixels, preserving edges while cleaning the image.
Why Use This Tool?
- Effectively removes digital noise while keeping edges sharp
- Ideal for cleaning up scanned documents or low-light photos
- Maintains important details without making the image look too soft
How It Works
The tool applies a Median Blur filter using the kernel size you provide. A larger kernel size increases the blur strength but may also smooth out more details. Only odd numbers like 3, 5, 7, etc. are accepted.
How to Use
- Upload your image using the file selector
- Enter an odd number for blur size (e.g., 3, 5, 7)
- Click “Submit” to apply Median Blur
- View and download your cleaned, denoised image
Tip: Start with a size of 3 or 5 for light cleanup, or go higher if the image has strong noise.