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This repository has been archived by the owner on Jul 13, 2021. It is now read-only.

.NET Framework desktop application for HDR imaging.

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asiryan/Local-Laplacian-filters

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Desktop application for local Laplacian image filtering developed in C#

Installation

System requirements

Processor: Intel® or AMD processor with 64-bit support (2 GHz or faster processor)
Operating system: Microsoft Windows 7 (Microsoft Windows 10 recommended)
RAM: 2 GB or more of RAM
Minimal resolution: 1280 x 800 px

Application

The application is designed for post-processing of raster images by correcting the dynamic range of brightness, local and global contrast, detail, saturation and exposure. It supports three color spaces: YCbCr, HSL, HSB and grayscale mode. The application includes the function of creating HDR-images from a series of images of different exposures (exposure fusion based on Laplacian pyramid technique [3]).

Exposure fusion

Figure 1. Images with different exposures

Figure 2. Exposure fusion

Enhancement

Figure 3. Enhanced exposure fusion

License

MIT

References

  1. Sylvain Paris, Samuel W. Hasinoff and Jan Kautz. Local Laplacian filters: edge-aware image processing with a Laplacian pyramid, ACM Trans. Graph. 30.4 (2011): 68 (pdf).
  2. Mathieu Aubry et al. Fast local laplacian filters: Theory and applications. ACM Transactions on Graphics (TOG) 33.5 (2014): 167 (pdf).
  3. Tom Mertens, Jan Kautz and Frank Van Reeth. Exposure Fusion. Pacific Graphics 2007: Proceedings of the Pacific Conference on Computer Graphics and Applications. Maui, HI, 2007, pp. 382–390 (pdf).
  4. Mathworks: MATLAB - Fast local Laplacian filtering of images (page).
  5. UMapx - Cross-platform .NET library for digital signal processing (link).