How to use built-in entropy function
조회 수: 4 (최근 30일)
이전 댓글 표시
Hi,
i would like to calculate entropy of an image using entropy function. when use this function like this
E = entropy(uint8(output_image)
i can see a value. But when i remove uint8, i see 0 as a result. type of output_image is double. Also when i try to calculate entropy like described in this link
E = -sum(histogram_of_output_image.*log2(histogram_of_output_image));
i see NAN (not a number) as a result
댓글 수: 2
채택된 답변
Subhadeep Koley
2020년 2월 1일
Hi, Can you attach your "output_image" ? So that we can reproduce the issue.
Otherwise you can try the code below.
E = entropy(uint8(rescale(output_image, 0, 255)))
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Image Processing Toolbox에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!