Saving a Bilevel - or Binary Image
조회 수: 2 (최근 30일)
이전 댓글 표시
Hello,
I am creating a black and white movie in my code. I create a 4 dimensional matrix of zeros. Each number in the matrix is a uint8. This is the problem.
B = zeros(X, Y, 1, NumberOfFrames);
B = uint8(B);
All I want to save is a 1 and a 0. By doing a unit8 I add 7 extra bits to each pixel. This is over a 25 minute mov file!! How can I save the information using less memory? Is there for example an:
B = binary(B);
Command?
Thanks!
댓글 수: 0
답변 (2개)
Sean de Wolski
2011년 1월 26일
B = false(X, Y, 1, NumberOfFrames); %casts as logical (1bit)
or
B = logical(B); %for something already in black and white but not 1bit
댓글 수: 0
Siddharth Shankar
2011년 1월 26일
B = zeros(X, Y, 1, NumberOfFrames);
B = logical(B);
댓글 수: 3
Siddharth Shankar
2011년 1월 27일
Sean, the code provided above is by no means meant to be "best practice" or the "best way" to do something. I was simply working off the code that "justthebasics" provided. The key was to make him aware of the LOGICAL function.
참고 항목
제품
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!