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Parents: Machine Learning MOC-Computer-Science

See : Image Processing for learning basics of Image and types of images and for maths related to image processing refer Mathematics In Digital Image Processing.

Digital Image Processing

The process of receiving and analysing visual information from digital image using a digital computer is called Digital image Processing.

Motivation behind Digital Image Processing

• Most of data in real world received by humans is of the visual form
• Humans understand , process and analyse the visual information using their perception and understand. In the same way digital image processing has been related to Analysis and processing of images.

Processing of image improves the images’ appearance and its representation.

Pixel

• Each Digital image is made up of finite elements/units known as Pixel/Pel.
• Each Pixel has its own definite value and particular location. Related : Relationship between the pixels and Distances between pixels

Structures used for operations

1. Kernel

Kernel is a small matrix which is used for either analysis and processing of image or for feature extraction from an image.

2. Filter
3. Structuring element

Steps in Digital Image Processing

There are two types of steps that are performed in digital image processing

1. Image features improvement
   1. Image Acquisition
   2. Image Enhancement
   3. Image Restoration
   4. Color Image Processing
   5. Wavelets and multi-resolution processing
   6. Image Compression
2. Image features extraction/Image analysis
   1. Image Morphology
   2. Image Segmentation
   3. Representation and Description in Image processing
   4. Object Recognition

The data collected from the above steps are stored in the knowledge base for future use case.

Trick to Remember

AE Rahul CIP Work Compress karega ya Mai Segment , Represent aur Describe karu Object ko!

Components of I.P

1. Network
2. Image Display
3. Computer
4. Mass storage
5. Printers
6. Specialised Image Processing Hardware : Converts the image into f(x,y) form i.e from analog to digital form using sampling and quantisation in image processing.
7. Image Processing Software
8. Image Sensor.

References

• HIPR : Good resource to study about Image processing
• Scientific Imaging Tutorials
• YouTube Playlists that were helpful for college level study.
  • Digital Image Processing Series - YouTube
  • Image Processing and Machine Vision - YouTube
  • Digital Image Processing - YouTube
• Image Kernels explained visually