INTERAZIONE E MULTIMEDIA E LABORATORIO A - L

Academic Year 2020/2021 - 2° Year - Curriculum Elaborazione Dati e Applicazioni and Curriculum Sistemi e Applicazioni

Learning Objectives

• INTERAZIONE E MULTIMEDIA

  General learning objectives in terms of expected learning outcomes.

  Knowledge and understanding: The purpose of the course is to acquire knowledge that will enable the student to understand the theoretical and physical mechanisms underlying the human visual system, the formation and processing of digital images, of the improvement of the visual quality of digital images. Ability to apply knowledge and understanding: the student will acquire the skills needed to acquire, edit, compress, and save a digital image.
  Making judgments: Through examples in the classroom, the student will be put into the condition of understanding whether the solutions offered by him meet a certain degree of quality.
  Communication skills: The student will acquire the necessary communication skills and technical language skills in the multimedia field.
  Learning Skills: The aim of the course is to provide the student with the necessary theoretical and practical methodologies to deal with and solve new problems that arise during a work activity. To this end, several topics will be addressed in lesson by involving the student in the search for possible solutions to real problems.

• LABORATORIO

  General learning objectives in terms of expected learning outcomes.

  Knowledge and understanding: The purpose of the laboratory course is to acquire knowledge that will enable the student to understand how to program interactive system. Additionally, it will be provided concepts about programming which enable the student to design solution where image processing is required.

  Ability to apply knowledge and understanding: the student will study Processing, a software and Java-based programming language. It will be helpful for practice on theoretical concepts.
  Making judgments: Through coding in the classroom, the student will be put into the condition of understanding whether the solutions offered by him meet a certain degree of quality.

  
  Communication skills: The student will acquire the necessary communication skills and technical language skills in the multimedia field.
  Learning Skills: The aim of the course is to provide the student with the necessary theoretical and practical methodologies to deal with and solve new problems that arise during a work activity. To this end, several topics will be addressed in lesson by involving the student in the search for possible solutions to real problems.

Course Structure

• INTERAZIONE E MULTIMEDIA

  Classroom lessons

  Laboratory lessons

• LABORATORIO

  Classroom lessons

  Laboratory lessons

  Should teaching be carried out in mixed mode or remotely, it may be necessary to introduce changes with respect to previous statements, in line with the programme planned and outlined in the syllabus.

Detailed Course Content

• INTERAZIONE E MULTIMEDIA

  Introduction to digital images

  Image formation in the human eye

  Thin lens equation

  Optical illusions

  Digital sensors

  The Bayer pattern

  Color interpolation

  Raster images and vector images

  Representation of raster images

  Campinamento

  quantization

  Aliasing

  Digital Image Resolution

  Interpolation replication, bilinear and bicubic

  PSNR

  Color

  The RGB, CMY, HSV, Munsell, YUV, YCbCr

  Indexed images and palettes

  Reindexing

  The histogram of an image

  Punctual operations and LUTs

  Bit-planes

  Linear and invariant operators for translation

  Noise reduction

  Edge detection

  Space domain

  Frequency domain

  Fourier transform

  The convolution and convolution theorem

  Lossy and lossless compression

  Shannon's theorem for compression

  Huffman Encoding

  The Jpeg standard

   

  
  Should teaching be carried out in mixed mode or remotely, it may be necessary to introduce changes with respect to previous statements, in line with the programme planned and outlined in the syllabus.

  Learning assessment may also be carried out on line, should the conditions require it.

• LABORATORIO

  Programming in Processing

  Starting with Processing

  • Main methods and variables: settings(), setup(), draw() e frameRate, width, heigth, etc…;
  • Main drawing methods: ellipse(), rect(), line(), bezier(), beginShape(), etc… and drawing modifiers ellipseMode(), rectMode(), ecc…
  • type color and method color().

   

  User interaction and mouse/keyboard events

  • variables mousePressed, keyPressed, mouseButton, key, keycode;
  • methods mousePressed(), keyPressed(), mouseReleased(), mouseClicked().

   

  Affine transformation for drawing:

  • Methods rotate(), shearX(), shearY(), translate(), applyMatrix() più pushMatrix() e popMatrix().

   

  Classes and objects in Processing, inheritance and data structure.

   

  Image processing, class PImage and methods

  • methods of Processing: loadImage(), createImage(), copy(), red(), green(), blue(), saveFrame();
  • methods and variables of PImage class: save(), get(), set(), loadPixels(), updatePixels(), pixels, etc…..

   

  Implementation of image processing algorithms

  • uniform and logarithmic quantization;
  • replication interpolation and PSNR evaluation;
  • point operations: negative, logarithm and power-law (gamma);
  • histogram stretching and equalization;
  • affine transformation for images: rotation, scaling, shear;
  • rank filters: median, max and min;
  • convolutional filters: sobel, prewitt, N box, etc…;
  • bitplane representation;

Textbook Information

• INTERAZIONE E MULTIMEDIA

  Digital Image Processing, (3rd Edition) Rafael C. Gonzalez, Richard E. Woods, Ediz. Pearson, Prentice Hall

• LABORATORIO

  Official Processing Reference: https://processing.org/reference/

  “Algorithms for Visual Design Using the Processing Language” - Kostas Terzidis - Wiley Publishing.

  “Learning Processing: A Beginner's Guide to Programming Images, Animation, and Interaction” - Daniel Shiffman - Morgan Kaufmann Publishers Inc., San Francisco, CA, USA.

  “Getting Started with Processing” - Casey Reas and Ben Fry - Make Books, Sebastopol, CA.