1 / 18

Image Processing Fundamental II

Image Processing Fundamental II. Operation & Transform. Digital Image Operation & Transformation. Digital Image Operation Arithmetic Operation Logic Operation Transformation Translation Rotation Flip. Arithmetic Operation.

izzy
Download Presentation

Image Processing Fundamental II

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Image Processing Fundamental II Operation & Transform

  2. Digital Image Operation & Transformation • Digital Image Operation • Arithmetic Operation • Logic Operation • Transformation • Translation • Rotation • Flip

  3. Arithmetic Operation • The arithmetic operations between two pixels p and q are denoted as followed: Subtraction : p – q Addition : p + q Multiplication : p * q Division : p / q

  4. Arithmetic Operation • Operation on entire images are carried out pixel by pixel. • If the result is real, truncate its value • If the result is over range, pick the maximum value • If the result if under range, pick the minimum value

  5. 0 0 0 0 100 0 0 0 0 100 100 0 0 100 0 0 0 100 100 0 0 0 100 0 0 0 0 0 0 0 0 100 Addition Operation IMAGE 2 IMAGE 1 + IMAGE 2 IMAGE 1 100 0 0 0 0 200 100 0 0 100 200 0 0 0 0 100

  6. 0 0 0 0 100 0 0 -100 0 0 0 0 0 100 100 0 0 100 0 0 0 0 100 0 0 100 100 0 0 0 100 0 0 100 0 0 0 0 0 0 0 0 0 0 100 0 0 -100 Subtraction Operation IMAGE 2 IMAGE 1 - IMAGE 2 IMAGE 1 0 0 Image subtraction is a basic tool in medical imaging, where it is used to remove static background information

  7. 0 0 0 0 100 0 0 0 0 100 100 0 0 100 0 0 0 100 100 0 0 0 100 0 0 0 0 0 0 0 0 100 255 255 Multiplication Operation IMAGE 2 IMAGE 1 * IMAGE 2 IMAGE 1 0 -100 0 0 0 0 10000 0 0 0 0 10000 0 0 0 0 -100 0

  8. 0 0 0 0 100 0 0 0 0 100 100 0 0 100 0 0 0 100 100 0 0 0 100 0 0 0 0 0 0 0 0 100 Division Operation IMAGE 2 IMAGE 1 / IMAGE 2 IMAGE 1 -100 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 -100 0

  9. Arithmetic Operation Let there is 1 input images p is denoted of a pixel in digital image and c is a constrain. • Addition : p + c • Subtraction : p – c • Multiplication : p * c • Division : p / c

  10. Arithmetic Operation Example • Addition : p + 10 • Subtraction : p – 10 • Multiplication : p * 10 • Division : p / 10

  11. Logic Operation • Principal logic operations used in image processing are AND, OR, and COMPLEMENT, denoted as follows: AND : p AND q OR : p OR q NOT : NOT q

  12. 0 0 0 255 255 255 255 255 0 0 0 255 255 0 0 0 0 0 0 255 255 0 0 0 255 255 255 255 255 0 0 0 OR Operation IMAGE 2 1 OR 2 IMAGE 1 255 255 255 255 255 0 0 255 255 0 0 255 255 255 255 255

  13. 0 0 0 255 255 255 255 255 0 0 0 255 255 0 0 0 0 0 0 255 255 0 0 0 255 255 255 255 255 0 0 0 AND Operation IMAGE 2 1 AND 2 IMAGE 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

  14. 0 0 0 255 255 255 255 0 0 0 0 255 255 255 255 0 0 0 0 255 255 255 255 0 255 255 255 255 0 0 0 0 AND Operation NOT IMAGE 1 IMAGE 1

  15. Transformation rotate flip translate

  16. Translation • It can be written in function as

  17. Rotation • It can be written in function as

  18. FLIP MxN • Horizontal • Vertical

More Related