PSD Photo Processor
How to Apply Exposure Adjustment to PSD Files in .NET

How to Apply Exposure Adjustment to PSD Files in .NET

Exposure adjustment is critical for correcting dark or washed-out photos. Aspose.PSD for .NET lets you automate non-destructive exposure fixes for any number of PSD files with a single script.

Real-World Problem

Photos with the wrong exposure need fixing for print, ecommerce, or marketing—but correcting hundreds by hand is impossible at scale.

Solution Overview

Add or update an Exposure Adjustment Layer, then set exposure, offset, and gamma values programmatically for instant improvement.

Prerequisites

  1. Visual Studio 2019 or later
  2. .NET 6.0 or later (or .NET Framework 4.6.2+)
  3. Aspose.PSD for .NET from NuGet
  4. PSD photo files for processing
PM> Install-Package Aspose.PSD

Step-by-Step Implementation

Step 1: Load the PSD File 

using Aspose.PSD;
using Aspose.PSD.FileFormats.Psd;

string inputFile = "./input/photo.psd";
string outputFile = "./output/photo_exposure.psd";

var loadOptions = new PsdLoadOptions() { LoadEffectsResource = true };
PsdImage psdImage = (PsdImage)Image.Load(inputFile, loadOptions);

Step 2: Add an Exposure Adjustment Layer 

var exposure = psdImage.AddExposureAdjustmentLayer();

Step 3: Set Exposure Parameters 

exposure.Exposure = 9;    // Exposure correction, typically -20 to 20
exposure.Offset = 0.05f;  // Offset, typically -1 to 1
exposure.Gamma = 1.1f;    // Gamma correction, >0

Step 4: Save the Enhanced PSD 

psdImage.Save(outputFile);
psdImage.Dispose();

Use Cases and Applications

  • Automated exposure correction for large archives
  • Batch-enhance product and marketing photos
  • Pre-processing for creative or print workflows

Common Challenges and Solutions

Too bright/dark after adjustment: Test values on sample images for best results.

Adjustment not visible: Confirm the layer order and correct settings.

Best Practices

  • Preview the result before mass conversion
  • Keep a copy of all originals
  • Script for full photo collections

FAQ

Q: Can I revert adjustments later? A: Yes—non-destructive layers let you adjust or remove anytime.

Q: Does this work for PSB files too? A: Yes—API works for both PSD and PSB formats.

Conclusion

With Aspose.PSD for .NET, exposure correction is fast, reversible, and scalable for any workflow. For more enhancement features, see the Aspose.PSD for .NET API Reference .

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