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imaqBCGLookup

imaqBCGLookup

‎04-02-2021 04:13 AM

Hi,

 

What kind of formula does imaqBCGLookup perform brightness conversion?

I assume it's y = 255*((tan(contrast)(x-128) + brightness)/255)^gamma.

Is it right?

 

 

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Re: imaqBCGLookup

‎05-05-2021 07:44 AM

How did you come up with this formula?

Did you see it somewhere? I could not find it.

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Re: imaqBCGLookup

‎05-05-2021 09:47 AM

@tottorico wrote:

Hi,

 

What kind of formula does imaqBCGLookup perform brightness conversion?

I assume it's y = 255*((tan(contrast)(x-128) + brightness)/255)^gamma.

Is it right?

 

 

Almost right.

 

Quick and dirty test:

 

Screenshot 2021-05-05 16.43.53.png

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