Image Enhancement Techniques

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What is the simplest form of T when the neighborhood is of size 1*1?

Gray-level transformation function

What is the term used for a transformation function that maps each value of 'r' to each value of 's'?

Thresholding function

What is the technique called when the values of 'r' below a certain threshold are compressed into a narrow range of 's', toward black?

Contrast stretching

What are small 2-D arrays used in image processing to determine the nature of the process called?

Masks Signup and view all the answers

What is the term used for enhancement techniques often referred to as mask processing or filtering?

Mask processing Signup and view all the answers

Define spatial domain processing techniques.

Spatial domain processing techniques refer to approaches that directly manipulate pixels in an image on the image plane itself. Signup and view all the answers

What is the primary focus of frequency domain processing techniques?

Frequency domain processing techniques focus on modifying the Fourier transform of an image. Signup and view all the answers

What are some applications of image enhancement?

Image enhancement is used in medical images, remote sensing, satellite images, and more. Signup and view all the answers

Explain the process of spatial domain methods in image enhancement.

In spatial domain methods, a neighborhood around each pixel is defined, and an operator is applied to manipulate the pixel values for enhancement. Signup and view all the answers

How is a neighborhood typically defined in spatial domain methods?

A square or rectangular subimage area centered at a point (x, y) is commonly used to define the neighborhood in spatial domain methods. Signup and view all the answers