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Image Tools / Local studio

Image Hue Sector Distribution Report

Count visible chromatic pixels in twelve fixed thirty-degree decoded HSL hue sectors.

Runs locallyNo image upload to Nirmion

Step 1 / Source

Choose one image

JPEG · PNG · WebP · 20 MB

Drop your image here

Or browse for a JPEG, PNG, or WebP image that you own or are authorised to edit.

One file · up to 20 MB · maximum 50 megapixels

Step 2 / Output

Image Hue Sector Distribution Report settings

This analysis uses one documented method so repeated runs on the same decoded pixels remain comparable.

Prepare the hue-sector-distribution JSON reportThe source is not overwritten. Analysis produces a separate hue-sector-distribution JSON report.
Keep this page open until the download begins.
01No server upload

The selected image is decoded and re-encoded inside this browser tab.

02Working copy released

After download, the preview URL, decoded bitmap, canvas, and selected source reference are cleared.

03Your download remains

Nirmion cannot remove the finished file from your device or browser download history.

Workflow guide

Use image hue sector distribution report with an inspectable review path

Visible decoded RGB is converted to HSL; zero-saturation samples enter an achromatic count and all remaining hues enter one fixed thirty-degree sector. Compare the result with the untouched source before using it downstream.
A

What you need

Choose one authorised JPEG, PNG, or WebP still image up to 20 MB and 12 million decoded pixels. Animated frames are not processed.

B

Social-ready choices

Compare consistently decoded campaign variants for broad hue-area shifts while reviewing profiles, lightness, saturation, and subjects separately.

C

What you receive

Review and download a separate hue-sector-distribution JSON report; the original file on your device remains unchanged.

Decision guide

What image hue sector distribution report measures or changes

Visible decoded RGB is converted to HSL; zero-saturation samples enter an achromatic count and all remaining hues enter one fixed thirty-degree sector.

Hue sectors are not a palette, dominant semantic color, colorimetric gamut, white balance, profile-aware appearance, or brand-compliance decision. Browser-local processing avoids a Nirmion file upload, but it cannot remove copies stored elsewhere.

OpenCV histogram tutorial

Useful checks for image hue sector distribution report

  1. Compare consistently decoded campaign variants for broad hue-area shifts while reviewing profiles, lightness, saturation, and subjects separately.
  2. Create a bounded review result while retaining the original for comparison, correction, or a different method.
  3. Test representative flat areas, gradients, edges, text, transparency, and high-frequency texture before accepting the output.

Good to know

Important image boundaries

Why might a PNG not become smaller?
PNG is lossless and browsers do not expose a quality control for it. Choose WebP or JPEG when reducing file size matters more than exact lossless pixels.
Are animated images supported?
No. The workspace accepts still JPEG, PNG, and WebP files. Re-encoding an animated source would otherwise keep only one frame.
What does clearing the file mean?
Because processing is local, there is no Nirmion server copy to delete. The tab releases its working references after success; your downloaded output remains on your device.

Questions answered

Frequently asked questions

Does Image Hue Sector Distribution Report upload my image?

No. Supported JPEG, PNG, and WebP decoding, pixel inspection, transformation, and export run in your current browser tab. Nirmion does not send the selected image to its API for this workflow. The result is a separate derivative or JSON report, while the original file on your device remains unchanged and should be retained for comparison.

How does Image Hue Sector Distribution Report work?

Visible decoded RGB is converted to HSL; zero-saturation samples enter an achromatic count and all remaining hues enter one fixed thirty-degree sector. Alpha-zero pixels are excluded; every visible non-achromatic pixel has equal count weight regardless of saturation or opacity. The method does not infer subjects, restore missing detail, calibrate a display, or develop raw camera data. Compare edges, gradients, text, texture, and transparent areas with the original before relying on the result.

What are the limits of Image Hue Sector Distribution Report?

Hue sectors are not a palette, dominant semantic color, colorimetric gamut, white balance, profile-aware appearance, or brand-compliance decision. The workspace accepts one supported still image up to 20 MB and caps this pixel-intensive operation at 12 million decoded pixels for predictable browser memory use. Results depend on browser decoding and encoding support. Animation, raw development, ICC calibration, layer editing, and batch processing are outside this tool's verified scope.