1. THRESHOLDING (IMAGE PROCESSING) Filip Vuković 2012/0205

2. 2/12 Thresholding

3. 3/12 Original image

4. 4/12 Image after thresholding

5. 5/12 Practical use of the algorithm

6. 6/12 How to solve the problem? image can be very large (hundreds of MBs) problem is loop oriented almost no data dependencies conclusion: dataflow paradigm (Maxeler)

7. 7/12 Preparing data program takes an image and outputs a thresholded version of it image has to be in.bmp format (bitmap) size does not matter (it can be 1KB or 200MB)

8. 8/12 Kernel code

9. 9/12 The ultimate goal – Build completed ☺

10. 10/12 Kernel graph

11. 11/12 References Phillips, D., “Image Processing in C,” http://homepages.inf.ed.ac.uk/rbf/BOOKS/PHILLIPS/cips2ed.pdf, 2016. -, “Thresholding (image processing),” https://en.wikipedia.org/wiki/Thresholding_(image_processing), 2016. Milutinovic, V., et al, “Guide to DataFlow SuperComputing,” Springer, 2015. Hurson, A., Milutinovic, V., editors, "DataFlow Processing,“ Elsevier, 2015.

12. 12/12 Questions and answers