Histogram Equalization processes image pixels locally in the browser with validated input, Canvas previews, TypedArray calculations, local Web Workers, and browser-generated exports. Images, filenames, pixels, and parameters are not uploaded or stored. Verify important results with a known fixture and document any automatic working-size resize.
Histogram Equalization
Enhance grayscale or luminance contrast using the cumulative distribution.
Loading image analysis interface…
Image preview
Original / source
Processed result
Analysis result
Privacy: Your image is processed locally in your browser and is not uploaded to the server.
How it works and how to use it
Frequently asked questions
Yes. This tool can be used for free without creating an account.
Browser-based processing is performed on your device whenever the tool supports local processing. Avoid entering sensitive data into any online service.
Review the displayed input assumptions and compare important results with the requirements of your project, institution, or applicable standard.
Related tools
Image Processing Tools
Image Histogram
Calculate 256-level RGB, single-channel, grayscale, and alpha histograms with distribution statistics.
Image Processing Tools
Thresholding Tool
Apply binary thresholding and related intensity transformations to an image.
Image Processing Tools
Gamma Correction
Correct image intensity with gamma values from 0.1 to 5.0 and a transformation curve.