A new algorithm for grayscale image histogram computation

A novel histogram development algorithm, which can produce the histogram of any type of grayscale images, is presented in this paper. The algorithm avoids use of any inbuilt functions to develop the histogram. The histogram thus obtained looks exactly similar to that produced by inbuilt functions available in tools like Matlab. Moreover, the algorithm is simple and can be effectively applied to different types of grayscale images. Another important characteristic of the algorithm is that its time complexity is very less. Experimental results have shown that the execution time of generating histograms by the proposed algorithm is rather small. This strengthens the general applicability of this algorithm.