Features  /  Image Editing  / 

Auto Contrast

Correcting photos that are too dark or too bright due to inadequate contrast can be done in no more than a few seconds by using reaConverter's Auto Contrast feature.

This powerful software automatically observes and adjusts problems connected to color contrast, optimizing color balance and making the image look better without the need of manual changes from your part. Here is how it works.

Install reaConverter

Open Images

Load one or more images that need editing. You can use the drag-and-drop tool or browse local folders to pick them manually.

Auto Contrast

Go to the Edit images tab, click Add action → Color adjustments → Auto Contrast

After selecting this option, the color contrast in your images will be automatically corrected. You can check the real time effect by ticking the Preview button from the right side of the window.

Save the Result

Go to the Saving options tab to pick the location and format of the output images. You can choose among a wide variety of extensions and save them both offline and online.

Finally, click the Start button and your new images will soon be ready!

Video tutorial

Try Free Trial Version

You are welcome to contact our technical support when you have any questions about reaConverter.


Command-line Interface

Advanced users can perform auto contrast using command-line interface in manual or automated mode. reaConverter Pro edition provides a command-line tool called cons_rcp.exe

Auto Contrast command-line example:

cons_rcp.exe -s "C:\Path_to\input_file.jpg" -o "C:\Path_to\output_file.jpg" -auto_contrast


-auto_contrast (applies auto contrast filter)

Command-line auto contrast tool is an advanced feature meant for professional use, and is available in Pro edition only.

Download reaConverter Pro with CLI