Creating a flash effect with java swing, or JavaCV

Question

I am working on a photobooth program and would like to create a "Flash" everytime a picture is taken. the only way I have come up with to do this after a bit of research, is to replace the image with an all white image for a moment. However this is not clean especially since I hope to make the the program agnostic to resolution (it is fixed at 720 atm). I have it set up with javacv video feed, using bufferedimages in swing.

I would like to honestly flash the screen, the vid or the GUI. The main goal is to use flash to indicate when the picture was taken.

score 1 · Answer 1 · edited May 23 '17 at 11:50

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As shown here, you can get a nice effect by varying the image's saturation in HSB color space. The example uses a color lookup table with linear variations, but you might experiment with a series of logarithmic decrements from white.

Addendum: To apply this to a BufferedImage, use RescaleOp on the desired component. This example varies the alpha component.

edited May 23 '17 at 11:50

Community

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answered Sep 29 '13 at 13:00

trashgod

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I like the idea, but having trouble combining it with a buffered image. I don't see a clean or easy way to do that in the API. Any advice? – river226 Oct 10 '13 at 01:48
I've cited a related example above. – trashgod Oct 10 '13 at 02:02

Creating a flash effect with java swing, or JavaCV

1 Answers1