1

Disclaimer: This is my first real time using Gimp, so I apologize if this is a basic question.

I'm trying to blend the colors of my pixels together based on the neighboring pixels. For example, consider the following 9 pixels.

0 1 2
3 4 5
6 7 8

Suppose that each number represents a value in a color channel. I'm looking for a tool such that given a pixel p, p's new value will the average of its (at most 8) surrounding pixels and itself.

The new values of the pixels above should be, after rounding:

2 4 3
4 4 5
5 6 6

Can someone point me towards a tool that can help achieve this?

Improve this question
2
  • Is the look you're going for similar to Gaussian Blur? From what I know of the math behind a Gaussian blur, what you're asking for is roughly that.
    – Adam Thompson
    Aug 9, 2014 at 19:01
  • Yes actually, I'm looking for something similar to the Gaussian Blur. But the Gaussian Blur has a mathematical definition different than what I'm looking for. With that said, I'm willing to experiment with the Gaussian Blur as well.
    – hlin117
    Aug 9, 2014 at 20:46

1 Answer 1

Reset to default
1

This operation in Image Processing is called aplication of a Convolution Matrix - in GIMP, there is a filter that allows you to do exactly this, experimenting with various weights for each neighboring pixel - just check it under Filters->Generic->Convolution Matrix

(if your objective is specifically the average, it is possible it is the operation that is achieved by the simple (not the Gaussian) blur filter - under filters->blur - the Convolution Matrix, though, will allow you to achieve exactly what you want)

Improve this answer
0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.