This section we will cover following area:
1. What is image ?
2. Digital image vs Analog image
3. How to convert image to digitize?
4. Application field for Image processing
5. Image size
What is image?
An image may be defined as a two dimensional function, f (x, y), where x and y are spatial (plane) coordinates spatial (plane) coordinates and the amplitude amplitude of f at any pair of coordinates (x, y) is called the intensity or gray level of the image at that point.
Figure: Image is nothing but a 2D matrix
Here i have shown a matrix for gray scale image . We will discuss about gray scale , RGB image, HSI image, Binary image, So don't worry about this. From above matrix , value of each cell of the matrix represent the pixel or intensity value . In future we will know how pixel work and if we change the pixel value for image ,what is the effect after changing pixel value in details.
1. What is image ?
2. Digital image vs Analog image
3. How to convert image to digitize?
4. Application field for Image processing
5. Image size
What is image?
An image may be defined as a two dimensional function, f (x, y), where x and y are spatial (plane) coordinates spatial (plane) coordinates and the amplitude amplitude of f at any pair of coordinates (x, y) is called the intensity or gray level of the image at that point.
Figure: Image is nothing but a 2D matrix
Here i have shown a matrix for gray scale image . We will discuss about gray scale , RGB image, HSI image, Binary image, So don't worry about this. From above matrix , value of each cell of the matrix represent the pixel or intensity value . In future we will know how pixel work and if we change the pixel value for image ,what is the effect after changing pixel value in details.
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