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.
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Réponse acceptée
Walter Roberson
le 4 Avr 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 commentaires
Image Analyst
le 17 Avr 2013
No, PixelIdxList is the list of linear indexes of the pixels, whereas PixelList is their gray levels.
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Image Analyst
le 12 Avr 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 commentaires
Image Analyst
le 13 Avr 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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