How to add Noise to Color Image - Opencv

Question

I\'m trying to to add noise to an Image & then Denoise it to test my DeNoising algorithm! So for benchmark i\'m referring this Online Test samples. I\'m trying to replic

Answer 1

There are mainly two methods to add say awgn noise (mean = 0, standard deviation = 30) to a colored image.

First: You can add the awgn noise of mean = 0, standard deviation = 30 to each of Red, Green, and Blue channels independently (or any other color model-HSI, YUV, Lab); and then combine the noisy channels to form the colored noisy image.

Second: To use the in-built function to add noise to the colored image directly. eg. imnoise() in Matlab.

I tried with both the methods (imnoise and independently), I got the same result.