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Inquiry about brightness and contrast function

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Inquiry about brightness and contrast function Dung Trieu 17 Jun 13:26
  Inquiry about brightness and contrast function Alexandre Prokoudine 17 Jun 16:59
Dung Trieu
2013-06-17 13:26:05 UTC (over 11 years ago)

Inquiry about brightness and contrast function

DearGIMP team,

I am a student and also an user ofGIMP software. I would like to say thank you for your effort to create such a wonderful image processing software. I very appreciate.

I am wondering if I could ask you a question relating to the function of adjusting brightness and contrast in GIMP which is introduced on your website:

"In GIMP 2.4, a new way of operating this tool has been added: by clicking the mouse inside the image, and dragging while keeping the left mouse button down. Moving the mouse vertically changes the brightness; moving horizontally changes the contrast. When you are satisfied with the result, you can either press theOKbutton on the dialog, or hit theReturnkey on your keyboard."

Would you mind advising me how you could write the code for this function?

Thank you

Kind regards,

Yung

Alexandre Prokoudine
2013-06-17 16:59:17 UTC (over 11 years ago)

Inquiry about brightness and contrast function

On Mon, Jun 17, 2013 at 5:26 PM, Dung Trieu wrote:

Would you mind advising me how you could write the code for this function?

https://git.gnome.org/browse/gimp/tree/app/tools/gimpbrightnesscontrasttool.c

AFAIK, the relevant code starts at line 184.

Alexandre Prokoudine http://libregraphicsworld.org