Get the average brightness of a movieclip in JPG?

Hi, I was working on a project a few months ago that I had to warn but am finally getting back to. A major feature that I need that I wasn't able to understand before was how to measure the average brightness of an image file that is loaded as a movieclip. I remember spending hours going through the tutorials, but I couldn't make it work. Now I don't remember even what or where I read before, and I'm not wanting to read everything and still not knowing what to do.

I want to just the simplest way possible to achieve a level of average brightness of an image, I don't like how the brightness is measured as it is only important compared to other images that will be measured the same way. Any help would be greatly appreciated, thank you.

Back at it a year and a half later, I had to increase the number of images that are being checked, and now the inaccuracy to the reading of transparent pixels as white is too harsh. Anyone know a better way to do it?

EDIT:

How many times have you thought that I have this right before I actually did? In any case, here IS THE REAL SOLUTION. Less complicated than what I tried before.

protected static void getAverageColor(image:MovieClip):Number {}

var bmp:BitmapData = new BitmapData (image.width, image.height, true, 0x00000000);

BMP. Draw (picture);

BMP. Draw (image.getChildAt (0));

var v: Vector. <> > = bmp.histogram ();

var r: Number = 0;

var g:Number = 0;

var b:Number = 0;

var a: number = 0;

for (var i: int = 0; i<256; i++)="">

r += I * v [0] [i] / 255;

+= g I * v [1] [i] / 255;

b += I * v [2] [i] / 255;

a += I * v [3] [i] / 255;

}

var brightness: Number = (r + g + b) /(3*a);

BMP. Dispose();

trace ("brightness:" + brightness);

return of brightness;

}

Returns a value between 0 and 1,.5 being to halfway between pure white and pure black.

Post edited by: xTLS

Tags: Adobe Animate

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Whenever you have a problem, please post CREATE TABLE and INSERT statements for your sample data and also to post the results desired from these data. It's great to describe the results, but don't forget to actually post them, too.
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---------- --------- -----------
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You can check the link below:

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With regard to:

Samhrutha G S - Microsoft technical support.

Visit our Microsoft answers feedback Forum and let us know what you think.

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