how to normalize all numerical parameters in an image.

for example , here it is written:

"J = imnoise(I,type,parameters) Depending on type, you can specify additional parameters to imnoise. All numerical parameters are normalized; they correspond to operations with images with intensities ranging from 0 to 1."

IT IS WRITTEN THAT ALL NUMERICAL PARAMETERS SHOULD BE NORMALIZED.. CAN ANYONE TELL ME THE COADING TO NORMALIZE THE NUMERICAL PARAMETERS AS I HAVE TO APPLY imnoise FUNCTION TO ADD SALT AND PEPPER NOISE. PLEASE HELP ME WITH THE CODING.

Answer 1

[Image Analyst]

For Salt and Pepper noise, they don't need to be normalized - that's only for things like Gaussian noise. See this snippet as proof.

grayImage = imread('cameraman.tif');
subplot(1,2,1);
imshow(grayImage);
noisyImage = imnoise(grayImage,'salt & pepper', .1) 
subplot(1,2, 2);
imshow(noisyImage);