How to show pixel values
조회 수: 10 (최근 30일)
이전 댓글 표시
I want to select a particular pixel in the image using impixel() but I also want to see on what cordinates I am clicking my mouse. For it I tried to use impixelinfo and impixelinfoval but none of them works when controls goes to impixel(). What is the solution?
댓글 수: 0
답변 (1개)
Image Analyst
2016년 11월 4일
This works just fine:
rgbImage = imread('peppers.png'); % Sample image.
imshow(rgbImage);
% Set up figure properties:
% Enlarge figure to full screen.
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0 0 1 1]);
% Get rid of tool bar and pulldown menus that are along top of figure.
set(gcf, 'Toolbar', 'none', 'Menu', 'none');
% Give a name to the title bar.
set(gcf, 'Name', 'Demo by ImageAnalyst', 'NumberTitle', 'Off')
% Setup impixelinfo
hp = impixelinfo();
hp.Units = 'normalized'; % So Position values can go between 0 and 1 no matter how many pixels are on the screen.
hp.Position = [.3, .95, .7, .05]
What did you do such that it did not work???
댓글 수: 3
Image Analyst
2016년 11월 4일
Sorry, it seems the way impixel() works, when you're in that mode it seems to turn off the "live" status line update that impixelinfo() provides. Send feedback to the Mathworks that you don't want that.
참고 항목
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!