How can I assign a GIF to a pushbutton?

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Zair Khan 2018-3-15

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编辑： Adam Danz 2020-4-28

I need to assign a gif to a pushbutton in a MATLAB GUI. I am using GUIDE, and I have the gif. I would like to have the gif show on the pushbutton, then show an image displayed at random. Basically I have a gif of a dice rolling. I would like to hit the pushbutton, show the gif of the dice rolling, then any one of a die side. Thank you.

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Adam Danz 2020-4-28

编辑：Adam Danz 2020-4-28

Here's how to do that in AppDesigner (r2020a +):

https://www.mathworks.com/matlabcentral/discussions/highlights/132277-new-in-r2020a-app-button-animation-truecolor-images

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Answer 1

Tony Mohan Varghese 2018-3-21

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You cannot assign a gif image to a pushbutton using GUIDE. A true colour RGB image can be assigned to a push button.

To display an image on a GUI component, try these four steps:

1. Read in the image you want to be displayed on the component.

2. Make sure that it is a True Color Image.

3. Resize the image to fit on the component.

4. Create the component and set the 'cdata' property to be the image.

Below is a quick example of how to display an image on a pushbutton:

[x,map]=imread('ngc6543a.jpg');
I2=imresize(x, [42 113]);
h=uicontrol('style','pushbutton',...
              'units','pixels',...
              'position',[20 20 113+10 42+10],...
              'cdata',I2)

If it is not a True color image, then you can use one of the conversion functions in the Image Processing Toolbox to convert it.

ind2rgb    - Convert indexed image to RGB image.
isrgb      - Return true for RGB image.
rgb2gray   - Convert RGB image or colormap to grayscale.
rgb2ind    - Convert RGB image to indexed image.

If you are using a GUIDE GUI and wish to modify an existing component that exists in the 'handles' structure, use the SET command to set the 'CDATA' property as shown below:

set(handles.pushbutton1,'cdata',I2);