Digital Image Processing

Using Python

Dr. David Raj Micheal

Assistant Professor

Division of Mathematics, SAS

Vellore Institute of Technology, Chennai

• What is Digital Image Processing?
• Demo
• Conclusion

Content

What is Digital Image Processing?

Image processing is defined as the use of computerized algorithms for the analysis of images with respect to an application.

Why?

• Improvement of information from the picture
• Efficient Storage
• Efficient Transmission

What is an Image?

Image is a representation of something or someone

What is an Image?

• An image can be represented as a 2D function F(x,y) where x and y are spatial coordinates.
• The amplitude of F at a particular value of x,y is known as the intensity of an image at that point.
• If x,y, and the amplitude value is finite then we call it a digital image.
• It is an array of pixels arranged in columns and rows.

What is an Image?

Processing of Images...

• Image enhancement
• Image restoration
• Image analysis, and
• Image compression

References

1. Eduardo A.B. da Silva, Gelson V. Mendonça, Digital Image Processing, Editor(s): WAI-KAI CHEN, The Electrical Engineering Handbook, Academic Press, 891-910, 2005
2. https://neptune.ai/blog/image-processing-python
3.  

Questions?