Dominant Local Binary Pattern Algorithm

Question

srivibha s 2011-4-19

0
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https://ww2.mathworks.cn/matlabcentral/answers/5765-dominant-local-binary-pattern-algorithm

I m doing project on extraction of text from videos based on morphological operations. we are using Dominant Local Binary Pattern(DLBP) algorithm.

Algorithm 1 Determining the number of dominant patterns of DLBP 
Input: Input image, and the parameters P and R for DLBP 
Output: The required number of patterns for 15% pattern 
occurrences 
1. Initialize Ktemp=0.
2. FOR each Candidate region I in the image
3. Initialize the pattern histogram, H[0…(2^(m-1))]=0. 
4. FOR each center pixel gc that belongs to I 
5. Compute the pattern label of gc,LBP P,R (1) 
6. Increase the corresponding bin by 1, H[LBPP,R ]++ 
7. END FOR 
8. Sort the histogram in descending order 
9. Find the number of patterns k for 15% pattern               
    occurrences in I.
       K= arg min k(i=0 to k-1 ? h(i)/i=0 to 2^m-1 ? h(i))>=15%
10.    Ktemp+=k
11. END FOR 
12. K15%=Number of different Dominant Patterns having occurences more than 15%. 
13. Return K15%

I dint understood what is the value of k in step 9 of algorithm. Can anyone explain me what the k is? and how to compute it?.

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Walter Roberson 2011-4-19

Please recheck what the operations that show up as ? should be in step 9. You have probably used a special symbol that does not get saved by the web interface.

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