How can i change my pointer mouse by a image?

2013 3 14
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更新时间：2020 6 25
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I have to do a program which create a music partiture, and i need select a note (by a gui interface) and introduce this note into a empty partiture. I'm looking the way that when you click on the note the mouse pointer change to this note (the image).... Somebody can help me?, please

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Alberto
Alberto 2013-3-18

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Yes but with this option i need declare the 16x16 matrix pixel by pixel, if i use a image the function crash.

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Walter Roberson
Walter Roberson 2013-3-18
imresize() to 16 x 16. rgb2bw() that. Add 1 so that the black are 1 and the white are 2.
Alberto
Alberto 2013-3-21
I tried with this code step by step: ------------------------------------------------------------------- X=imread('negra.jpg'); umbral=graythresh(X);
P=im2bw(X,umbral); P = imresize(P,[16,16]); [m n]=size(P)
set(gcf,'Pointer','custom','PointerShapeCData',P,... 'PointerShapeHotSpot',[9 9]) --------------------------------------------------------------------
And Matlab crash with this error:
??? Error using ==> set Value must be numeric
Image Analyst
Image Analyst 2013-3-21
Add comments to Walter's answer, not to "your" answer, which really should have been a comment to Walter, not an Answer of your own to your original question.
Alberto
Alberto 2013-3-23
Thank you Walter I did it, and it`s worked

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