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PT Photo Editor 4

Easily rescue problem photos.
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  • Advanced and easy to use tools and features allow you to edit pictures like a professional fast
  • Full-time 16-bit processing and full color management for a high quality result
  • Support quick batch processing
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10

Levels

Levels Panel

You use the Levels adjustment to correct the tonal range of an image by adjusting intensity levels of image shadows, midtones, and highlights. The Levels histogram is a visual guide for adjusting the image key tones.

How to read a histogram

A histogram illustrates how pixels in an image are distributed by graphing the number of pixels at each color intensity level. It can help you determine whether an image has enough detail to make a good correction.

In Levels adjustment, the histogram gives a quick picture of the tonal range of the image, or the image key type. A low-key image has detail concentrated in the shadows. A high-key image has detail concentrated in the highlights. And, an average-key image has detail concentrated in the midtones. An image with full tonal range has some pixels in all areas. Identifying the tonal range helps determine appropriate tonal corrections.

A. Overexposed photo B. Properly exposed photo with full tonality C. Underexposed photo

Adjust tonal range using Levels

Midtone: Adjust the intensity level of the midtones in the histogram, this will help to add or reduce to the overall brightness of the scene without increasing the white and black pixels.

Highlight: Adjust the intensity level of the right part in the histogram, this will help to lighten or darken the highlight part of the image.

Shadow: Adjust the intensity level of the left part in the histogram, this will help to lighten or darken the shadow part of the image.

White: Stretch the tonal range to the right in the histogram to correct an underexposed image.

Levels Adjust White Before Levels Adjust White After
Before After

Black: Stretch the tonal range to the left in the histogram to correct an overexposed image, this also makes the image have more contrast in the dark part.

Levels Adjust Black Before Levels Adjust Black After
Before After
Home
Overview
Crop Tool
Straighten Tool
Lens Correction Tool
Red Eye Correction Tool
Blemish Removal Tool
Clone Tool
Liquify Tool
Basic Adjustments
Levels
Curves
Color Adjustments
Split Toning
Details
Vignette & Grain Effect
Color Correction
Effect Presets
Batch Processing
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