Quiz on Image Pre-processing

What is the primary purpose of image smoothing in local pre-processing?

• Reduce noise

• Enhance sharp edges

• Increase image brightness

• Detect corners

Which method is used to highlight edges and rapid changes in intensity?

• Gradient Operators

• Averaging

• Non-linear Mean Filter

• Median Filtering

What is a challenge associated with image smoothing?

• Amplifying noise

• Blurring sharp edges

• Enhancing brightness

• Detecting corners

Which filtering technique is effective in removing impulse noise while preserving edges?

• Butterworth Filter

• Gaussian Filter

• Median Filtering

• Averaging Filter

What is the main characteristic of non-linear mean filters?

• They can use ordered statistics

• They use constant weights

• They replace pixels with the average value

• They depend on specific applications