Fix tonal problems and color casts

On the Photoshop on the web homepage, select Upload file and browse for a file on your device.

Select Quick actions .   

Select from the options provided in the Auto section:

• Auto color: Redistributes tonal values between shadows, midtones, and highlights. Also, it corrects the unwanted color cast.
• Auto contrast: Improves the overall image contrast by darkening the darkest pixels to pure black and lightening the lightest pixels to pure white.