How do you write a FUNTION-M file?

Please give me an example of a FUNCTION code whereby image is convert to greyscale and to binary scale and going through salt & pepper filtering. thank you:)

Answer 1

[Wayne King]

Your title is not an accurate description of your post. Your post is asking somebody to write specific code for you, not a general question about how to write a function.

If you have the Image Processing Toolbox, please look at imread.m, imnoise.m, and medfilt2.m.

There are examples there of filtering salt & pepper noise. medfilt2.m will handle various classes of input image.

[Esther]

sorry about the description of post. I just want to know how do i even start a function M-file. like, function Img = getimage(Filename) how to do make this work. i need more examples, tutorials to know more about it.

[Image Analyst]

http://blogs.mathworks.com/videos/

[Jan]

@Esther: Please read the "Getting Started" chapters of the documentations, which is displayed by tyoing "doc" in the command window. Creating and calling a function belong to the very basics and a forum cannot replace a deep study of the documentation.