How to display a value from a variable into a textbox
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if true
% code
global citra
global tampung
I = rgb2gray(citra);
BW = tampung;
BW = im2bw(BW);
s = regionprops(BW, I, {'Centroid','WeightedCentroid'});
numberOfBlobs = size(s, 1);
labelShiftX = -7; %untuk mengkondisikan posisi titik tengah.
titikX = [1 2 3 4];
titikY = [1 2 3 4];
end
hold on
numObj = numel(s);
for k = 1 : numObj
plot(s(k).WeightedCentroid(1), s(k).WeightedCentroid(2), 'r*');
titikX(k)=s(k).WeightedCentroid(1);
plot(s(k).Centroid(1), s(k).Centroid(2), 'bo');
titikY(k)=s(k).WeightedCentroid(2);
end
hold off
Xmtkaki = (titikX(1)-titikX(4));
Ymtkaki = (titikY(1)-titikY(4));
Xmtkika = (titikX(4)-titikX(1));
Ymtkika = (titikY(4)-titikY(1));
Xmtkamu = (titikX(1)-titikX(2));
Ymtkamu = (titikY(1)-titikY(2));
Xmtkimu = (titikX(4)-titikX(2));
Ymtkimu = (titikY(4)-titikY(2));
Xmtkahi = (titikX(1)-titikX(3));
Ymtkahi = (titikY(1)-titikY(3));
Xmtkihi = (titikX(4)-titikX(3));
Ymtkihi = (titikY(4)-titikY(3));
I want to display value from this variable (Xmtkaki, Ymtkaki) to a text box, but i didn't know how to display it.
need u'r help
thanks in advance.
0 Comments
Accepted Answer
Walter Roberson
on 4 Apr 2013
Let position1 and position2 each be (different) 4-element position vectors reflecting the location and size of the two text boxes. For example, [0 0 .1 .05]
The next two lines only need to be done once, to create the text boxes.
textbox1 = uicontrol('Style', 'text', 'Units', 'norm', 'Position', position1);
textbox2 = uicontrol('Style', 'text', 'Units', 'norm', 'Position', position2);
Then, each time you want to update the boxes,
set(textbox1, 'String', num2str(Xmtkaki));
set(textbox2, 'String', num2str(Ymtkaki));
5 Comments
Image Analyst
on 17 Apr 2013
No, PixelIdxList is the list of linear indexes of the pixels, whereas PixelList is their gray levels.
More Answers (1)
Image Analyst
on 12 Apr 2013
You probably want to call impixelinfo() (in the Image Processing Toolbox). This will give live, updated x,y,gray level information to a text box on the screen (that you can position wherever you want).
2 Comments
Image Analyst
on 13 Apr 2013
I don't know what they represent. Perhaps you need to run my image segmentation tutorial http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862, where I find object and their centroids and label them on the image.
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