Exam 3: Digital Image Processing

The output digital image must first be converted into an analog signal.

The Fourier transform is used to transform one image domain into another image domain.

Digital image processing techniques have been applied successfully in not only the space program but also in medical imaging.

A digital image is a discrete function.

Please match the following digital image processing concepts for each group. All answer selections will be used just once. -Also called area processes or group processes

The contraction for "picture element" is:

Explain briefly what is meant by convolution.

What are the components of a digital image processing system?

In which of the following is the quality improved of a digital image that has distortions or degradations?

In which of the following is the brightness level of each pixel in a picture measured by a photomultiplier tube?

Digitization consists of four steps: scanning, sampling, quantization, and digital-to-analog conversion.

A digital image:

Which image processing hardware is responsible for high-speed processing of the input digital data?

Which of the following converts an analog signal (voltage) into digital data (numbers)?

Which type of artifact will appear on a digital image as a result of poor sampling of the analog signal?

Which of the following represents the logical order in digitizing an image?

What is the purpose of the host computer in a digital image processing system?

The least complicated and most frequently used image processing technique is the:

Aliasing results in an artifact that appears as a moiré pattern in the image.

A technique of filtering in the spatial domain rather than in the frequency domain is convolution.