Photolisa · color and tone

Auto Levels

Automatic levels redistributes tonal values based on an image's dark and light endpoints.

Image tool workspace

Enable JavaScript to use the processing controls. Tool instructions and limitations are available below.

Understanding auto levels

Automatic levels redistributes tonal values based on an image's dark and light endpoints.

Review separate color channels to avoid unintended color casts.

A practical workflow

  1. Choose the required source files, if any. Files are handled as stated in the workspace privacy label.
  2. Set the available controls and apply the operation.
  3. Compare the actual output, check its dimensions and download the generated file.

Decisions and limitations

  • No additional settings are required.

Images up to 16 megapixels and 20 MB. Keep an original copy. Export preserves pixels, not editable layers or original metadata.

Questions about this task

Where do I use the current tool?

Apply the selected adjustment and export a PNG copy.

What should I check for auto levels?

Review separate color channels to avoid unintended color casts.

Which settings and formats are confirmed?

PNG. Images up to 16 megapixels and 20 MB. Keep an original copy. Export preserves pixels, not editable layers or original metadata.

Auto Gamma Correction

Automatic gamma correction adjusts midtone brightness while trying to retain endpoints.

Available

Levels Adjustment

Levels adjustments set black, white and midtone reference points.

Available

Auto Enhance Photo

Automatic enhancement proposes broad tonal or color corrections for a photo.

Available

Duotone Image Filter

Duotone maps dark and light areas to two chosen colors.

Available

Color Overlay

A color overlay tints an image by blending a solid color over its pixels.

Available

Color Replacer

Color replacement selects a source color range and substitutes a different hue.

Available

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