Automatic gamma correction online
Select a picture on your computer or phone and then click OK. Other settings are installed by default.
Example of color clothespins photo and black-and-white photo of Kodak battery without any changes and with the automatic gamma-correction after processing on this website:
Automatic gamma correction is best suited for black-and-white images, as well as for natural and not too dark or light photos. For lightening of very dark photos is best fits this online tool, for darkening of overexposed areas and at the same time for lightening of dark areas - Shadow / Highlight online (like in Photoshop).
The original image is not changed. You will be given other processed image.