How to smoothen cropped image?

My project is to segment knee cartilage to detect the damaged cartilage. In the first step I selected ROI by using imcrop. Now I want to smoothen the cropped image so that the output after segmentation is clear.In the attached figure, left side is the cropped image and right side is the image I want to get as output. Please help me with coding. Thank u.

Answer 1

[David Young]

If you have the Image Processing Toolbox, you could use imgaussfilt.

[mounika siripurapu]

Thank u. But my image is of class unit8.

[Image Analyst]

So?

[mounika siripurapu]

I am getting an error as...the input should be double.

[Image Analyst]

So cast it to double.

[mounika siripurapu]

Ok. Thanq. Actually I want to perform preprocessing of knee MRI like cropping region of interest,filtering the cropped region and finally smoothing. Please send me sample codes related to preprocessing if possible. Thank you.

[Image Analyst]

See my demo for freehand masking, attached. To smooth, you can use imfilter() or conv2().

[mounika siripurapu]

Thank you.