Noise removal matlab project

1. How to remove noise using matlab?
2. Which technique is used to remove noise?

How to remove noise using matlab?

You can use linear filtering to remove certain types of noise. Certain filters, such as averaging or Gaussian filters, are appropriate for this purpose. For example, an averaging filter is useful for removing grain noise from a photograph.

Which technique is used to remove noise?

Linear smoothing filters

One method to remove noise is by convolving the original image with a mask that represents a low-pass filter or smoothing operation. For example, the Gaussian mask comprises elements determined by a Gaussian function.