Basic Image Manipulation CHAPTER 5. Topics 5.1Storage 5.2Reading and writing images in Java 5.3Display 5.4Printing 5.5Manipulation of pixel data.

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Presentation transcript:

Basic Image Manipulation CHAPTER 5

Topics 5.1Storage 5.2Reading and writing images in Java 5.3Display 5.4Printing 5.5Manipulation of pixel data

5.1Storage 5.1.1Storage media 5.1.2File formats 5.1.3The PBM, PGM, PPM formats 5.1.4The portable network graphics (PNG) format

Storage media  Short-term storage  Online storage  Archival storage

File formats  Device-specialized formats  Software-specialized formats  Interchange formats

Examples of interchange formats

5.1.3The PBM, PGM, and PPM formats

5.2Reading and writing images in Java 5.2.1PBM. PGM, and PPM images 5.2.2Creating your own format: and example 5.2.3PNG images 5.2.4Putting it all together

5.3Display 5.3.1Hardware 5.3.2Software (displaying images in Java)

5.3Display - Hardware

5.3Display - Software

Display - Software

5.4Printing 5.4.1Grayscale images  Patterning  Dithering  Error diffusion 5.4.2Color images

Patterning

Dithering

Error difusion

5.4.2Color images  CMYK color model is used for printing

5.5Manipulation of pixel data 5.5.1Extracting regions of interest 5.5.2Basic geometric manipulation 5.5.3Arithmetic and logical combination of images  Adding and averaging  Subtraction  Division  AND & OR

5.5.1Extracting regions of interest (ROI)

5.5.2Basic geometric manipulations  Scaling  Scaling (enlargement / shrinking) by an integer factor  Rotation  Rotation by a multiple of 90 degrees  Reflection  Reflection along x or y axis

5.5.3Arithmetic and logical combination of images  Addition

 subtraction

 Division  AND & OR

Midterm Project