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Auto Enhance Photo

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Auto Enhance Photo lets you expand each RGB channel’s tonal range using its measured low and high percentiles. Choose a photo to begin.

Method and calculation

Expand each RGB channel’s tonal range using its measured low and high percentiles.

Inputs and settings

Auto Enhance Photo accepts Clipped percentile (%) (minimum 0, maximum 10).

Worked example

Auto Enhance Photo example — Clipped percentile (%): 1. Preview instructions: Select a still photo, then use Clipped percentile (%): 1. The result is a PNG with expand each RGB channel’s tonal range using its measured low and high percentiles.

Output and limitations

A low-contrast scan often has unused room at both ends of its histogram. Percentile clipping ignores a small fraction of extreme pixels before stretching each channel. A high clipping setting can lose highlight detail and may introduce a color cast.

Technical references: Canvas pixel manipulation

Auto Enhance Photo FAQs

Auto Enhance Photo applies the following rule to your input: Expand each RGB channel’s tonal range using its measured low and high percentiles. The visible preview shows the resulting image effect.
Auto Enhance Photo has these boundaries: Processes one still image locally. PNG export uses a maximum 4096-pixel source edge; effects may expand the canvas. Start by checking the clipped percentile (%) field against the units or format shown.
Auto Enhance Photo provides this sample: Select a still photo, then use Clipped percentile (%): 1. The result is a PNG with expand each RGB channel’s tonal range using its measured low and high percentiles.. The preview can be inspected before saving.

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