About add gaussian white noise without using function directly

Hello,

I'd like to add gaussian white noise on the image, and don't use matlab function directly, and I should use probability density function.

NewImage = OldImage + k * Gaussian, I don't know how to write. Please! Thanks!

Answer 1

[Kiran Felix Robert]

Hi Shao,

To add Gaussian Noise to an image without using the in-built function, you may do the following,

1. Generate a Gaussian Kernel – Refer fspecial
2. Convolve the Gaussian Kernel and the image – Refer conv2

Kiran Felix Robert

[Shao Qianting]

Thank you very much.