What is AGC in Image Processing (Expand Luminance Range 0 to 255)
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Hey there,
When i was working on some hdr algorithm i see an argument named AGC. It explains in article such as(starts with Finally..) :
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/161874/image.png)
I search it on internet and i see something about speech processing but i think it is about on luminance range as article says too. Here is my algorithm (I have an image named Yhdr) :
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/161875/image.png)
Can anyone answer the what is AGC
Thanks
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Walter Roberson
2017-3-19
It is Automatic Gain Control, the same expression used in sound processing.
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Walter Roberson
2017-3-19
Different fields use the same term for related concepts. Consider for example that you can "grow" a fruit or "grow" a crystal without the two meaning exactly the same things.
There is no existing block in Simulink or MATLAB to do the kind of automatic gain control being referred to for HDR. I do not seem to have enough enthusiasm to read the article and understand it and program it for you.
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